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Powrmatic Vision

Powrmatic Vision Condenserless Air Conditioning

Today we are going to take a detailed look at the Powrmatic Vision range of Condenserless Air Conditioning units.

Powrmatic Vision 2.3 Installed In A Room

A typical air conditioner consists of an indoor unit and an outdoor unit containing a compressor. The two are linked with insulated pipe work and then filled with refrigerant.

The Powrmatic Vision is a condenserless air conditioning system which does not require an external condenser or pipework.

How Does A Condenserless Air Conditioning Unit Work?

The unit functions exactly the same as a typical air conditioner. It has an evaporator coil (which cools the indoor air flowing over the coil). A compressor is used to compress refrigerant gas into a liquid and a Condensor coil is used to remove heat from the compressed gas.

What makes the Vision range so special is that all the components are cleverly contained within the Vision enclosure.

The condensor circuit however needs cooling to be able to work. As the compressor forces the refrigerant gas into a liquid, heat is generated. The heat needs to be expelled by the unit in order to work.

The Powrmatic Vision solution use two round ducts which are fitted to the back of the unit to cool the condensor and compressor circuits.

Powrmatic Vision 2.3 External Grills

The twin duct system sucks air from the outside through the ducts, passes it over the condensor coil and compressor then discharges it back to the outside with the second duct.

As the Vision contains a heat pump, it can be used for heating during winter months also.

The Powrmatic Vision Range

The original Vision was redesigned in 2018 to incorporate a clean, smooth curved outer body with a complete internal metal shell. Not only does the redesign look much better when installed, its also much stronger as it no longer contains plastic parts inside forming structural components.

The Vision range also has a new addition called the Vision Verticool. Powrmatic have taken the original idea and developed a vertical version of the product to fit into spaces within rooms where the standard Vision may not have fitted or worked well.

Powrmatic Vision 2.3 DW and Vision 3.1 DW

The Vision 2.3 DW and Vision 3.1 are profiled in the same good looking enclosure, the difference being heating and cooling capacity. All of the Vision Range are Condenserless air conditioning units.

The Vision 2.3 offers a heating capacity of 2.1 kW and cooling capacity of 2.04 kW when operated in standard mode. Maximum capacity of the device is quoted as 2.6 kW down to 0.9 kW for cooling and 2.64 kW down to 0.7 kW for heating. Use of an Inverter compressor allows modulation of the output capacities for energy saving.

Actual power use is 630 Watts cooling and 638 Watts heating, offering an impressive COP of 3.29.

As the outside temperature reduces the efficiency of a heat pump also reduces. Its not just the Vision Range, all heat pumps suffer this loss.

To actively overcome this problem, the Powrmatic Vision 3.1 DW/H model was released which contains an additional electrical heating element.

As the heat starts to drop off, the electrical heating element is automatically used to increase the output to ensure your space is heated well.

Powrmatic Verticool

Powrmatic Verticool offers the same benefits as the Vision range, except the unit is tall and narrow. Its designed to fit into spaces such as between windows or corners of the room. Verticool fits where space and access is difficult. At just 185mm deep it integrates into rooms well.

Powrmatic Verticool 3.1 DW

Product Features

  • New Stylish And Contemporary Design
  • Quick Installation In Under 4 Hours
  • No F-Gas Required And Can Be Self Installed
  • WiFi Controls Now Standard With iOS and Android App
  • Heating And Cooling All Models
  • High Wall Or Low Wall Installation For Vision
  • Upright Narrow Width Installation For Verticool
  • Very Quiet Operation

Powrmatic Vision Installation

Installation of the Powrmatic Vision is simple and requires minimal down time of the room where it is to be installed.

Every unit is supplied with a detailed paper template which should be fixed to the wall where the unit is to be located. Observe the clearances shown on the template so the unit will fit perfectly.

Using a suitable punch, pencil or marker.
Clearly mark the six holes which will be used to fix the support to the wall.
Mark the two holes that need to be drilled for the ducts.
Then mark the condense discharge hole and remove the template.

Drill the holes for the bracket and add suitable wall plugs. Open the duct holes using a 160mm diameter core drill and remove debris. Finally form a 14mm hole for the condense discharge pipe.

The support bracket is now fixed and secured to the wall using the supplied fixings. Ensure it is secure as this will take the weight of the unit.

The plastic lining ducts are now located through the two large holes, marked and trimmed to length as required. Two internal flanges are secured to the tubes to hold them into place.

The external grills are folded in half, pushed through the ducts and they will automatically expand once outside the duct. A quick tug on the retaining straps pops them onto the duct and they are then secured onto the back plate.

The outside grills are always fixed from the inside, which means no access is required on the outside of the building making it suitable for high buildings.

Now simply lift the unit onto the support bracket, make sure its aligned correctly and allow it to rest into place.

The unit is supplied pre-wired with a flexible cable and a UK 13 Amp.

Powrmatic Vision External Ducts

Powrmatic Vision & Verticool Availble Online

We have the full range of Powrmatic Vision & Powrmatic Verticool available to buy from our on-line store.

Follow This Link to go to the Powrmatic Vision area of our store.

You can also Click Here to visit the official Powrmatic Website for more details.

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Commercial Air Curtain

Commercial Air Curtain – Energy Matters

It costs money to heat commercial spaces such as factories and warehouses and folks are aways looking to save on heating costs. We will show you how a commercial air curtain can do just that.

When you operate a heated space with industrial doors they always become a major source of heat loss as soon as they open. Cold air from the outside of the building enters the building and displaces warm air added by your heating system.

When the door is closed, that cold air has to be heated again and that is a waste of energy. Commercial air curtains can help with this problem.

A commercial air curtain generally comes in two varieties, ambient and heated. Ambient units recycle air and heated units add heat to the displaced air. Heated options are useful if your space has poor or no heat and you want to add some easily.

Its important to realise that a heated commercial air curtain is no more effective than an ambient one. It may make the area feel a little warmer, but make no difference to the effect the air curtain creates.

Installation is a breeze

Commercial air curtains can be hung above the door, stacked vertically either side of the door or in some cases both. Air flow is effective up to around 7.5m for over head installation and up to 15m for vertical installation when installed both sides of a door. Using a combination of both, some very large doors can be catered for.

Door widths are simply built up using modules which are assembled together to from a single commercial air curtain. Generally a slightly wider air curtain is beneficial to one shorter than the door opening.

When the door opens and the air curtain starts up, they force a large amount of air through a small nozzle which produces a fast flowing invisible curtain of air over the opening. Its as simple as that but very effective.

Cold air is unable to penetrate the curtain of air and is unable to enter the property. It has the added advantage that pest and other flying insects can not enter either.

The curtain of air has to be sufficiently strong and fast flowing for the effect to work, hence the reason that the air flow rates of the units is high. A 6m wide commercial air curtain can displace up to 27,600 m³/hour.

Commercial Air Curtain GP Range has our own brand of commercial door curtain units that we call the GP range.

Our commercial air curtain comes in three different versions with module widths of 1.5m and 2.0m in length.

  • GPA – Ambient has no heating and recycles air.
  • GPE – Electrially heated with advanced PTC heating elements.
  • GPW – Heater with a water heat exchanger

All of the modules use the same chassis and modules can be mixed and matched. Heated versions can be attached to ambient versions to form the perfect design.

Our smart control box 3 can support up to 3 modules, providing an easy wiring centre for installation. Control boxes can be linked for ease of use but in some cases, using an off the shelf contactor may be easier to install.

An industrial switch at low level controls the commercial air curtain which comes into life as soon as the door is opened.

An internal contactor inside the electric version brings the heating elements on line as soon as the fans start to spin. This makes the electrical supply nice and easy to deal with.

For a water unit, an external mains actuated valve allows water to flow when the curtain starts up. This stops heat being wasted around the coil of the commercial air curtain when the door is closed and the unit is not being used.

Installation is fairly straight forward as the modules all assemble together with easy to use multi brackets. The modules are tightly held in place to prevent vibration when in use.

The same bracket is used for top hanging, again bridging two modules for an even safer installation. Often installed onto back to back slotted channel, the commercial air curtain can be lifted up into place using a fork lift or mobile super lift.

Support is normally required to take the weight of the door curtain, but can be as simple as a single cantilever either side of the door. Double back to back slotted channel can support a 6m wide door easily.

Maintenance is low key and a good annual clean of dust will extend the life of the unit. They are cheap to install and even cheaper to operate.

If you would like any further information on our range of commercial door curtain’s then please contact us for free and friendly advise.

Our commercial air curtain – GP range is available to buy on line from our store. You can visit by clicking here.

Commercial Air Curtain GP Range Side View

Warmairheaters is owned by PW Maintenance, please visit us.

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Powrmatic TE Air Rotation Heater

Finished Powrmatic TE Heater

Powrmatic TE Air Rotation Heater

Powrmatic TE Heater Installation. We were asked to quote to heat a large warehouse a few months back at Magna Park, Lutterworth. The building was on a short term lease of 18 months, while the clients new property was being built for them on the same estate. The client requested frost protection only and asked us to offer some ideas. They asked us to quote for heating the warehouse with Powrmatic NVx Gas Fired Unit Heaters and Destratification Fans. Ideally the final solution would be movable to the new premises when complete.

Finished Powrmatic TE Heater

We calculated a heat load of around 550 kW for the building but due to the size, twelve heaters would have been required. With a building size of 150M x 120M, it would have taken a lot of Gas Pipework and Destratification Fans to effectively service the area.

We submitted a price but also decided to introduce them to the Powrmatic TE, Air Rotation Heater.

The Powrmatic TE warehouse heater range of gas and oil-fired air rotation heaters are specifically designed for the efficient heating of large areas and are especially suitable for open plan warehousing and manufacturing facilities.

Powrmatic TE air rotation units utilise high efficiency axial fans to move large volumes of air. These heaters achieve a uniformity in the distribution of heated air that cannot be matched by conventional units that treat low volumes of air at high temperature.

The principle of air rotation is to move large volumes of air at low velocity and controlled temperature. Cooler low level air is constantly drawn through the heater with a high level discharge effectively de-stratifying the building and, in turn, lowering the temperature gradient within the heated area. For the majority of applications a single heater can provide uniform warmth wall to wall and floor to ceiling without the need for costly duct work. Flexibility is a key benefit of Powrmatic air rotation systems.

The cost of the Powrmatic TE heater is higher than the equivalent in unit heaters, but once you consider the amount of gas main, destratification fans and labour, overall the final solution is far more cost effective. The problem with unit heaters, warehouses and racking is when the building is moved around. Heaters become obstructed by racking and stock and eventually the scheme will fail as airflow is reduced. This is one solution the Powrmatic TE overcomes. Heat is evenly distributed even with racking and stock because of the inherent design of the unit.

Powrmatic normally carry out the design calculations to confirm heat input but more importantly, to specify the fan duty inside the units. Every building is different and will require a different air volume to be effective. Because of the size of this warehouse, Powrmatic confirmed we would also require a destratification fan at the opposite side of the building.

The customer received our quotation and after taking some time to investigate the Powrmatic TE heater range, they placed an order with us.

Following a meeting on site, we were informed that the floor finish inside the building must be protected and we could make no tyre marks or cause damage to the floor in any way. We went back to the office to think over this and come up with a solution on how to proceed.

Gas Main Installation And Modifications

We had already calculated that the building has a sufficient gas supply to add the new unit. As always, we contacted the gas transported and informed them that an additional load of 550 kW was planned for the service pipe. We were told that sufficient gas was available and we could proceed. We always check that capacity is available during quoting stage, to avoid embarrassment later on should a restriction be in force.

Whilst the Powrmatic TE heater was being manufactured down at Powrmatic, we began to install the gas pipework to the building.

We had a small section of gas pipe work welded up in our fabrication shop which was taken to site alongside the materials required to install a new gas main.

Our engineers attended site and first carried out some basic gas safety tests. We made sure the existing gas main had no leaks, that the isolation valves all worked and the gas solenoid cut off worked. They then purged the whole main to Nitrogen so the header could be worked on safely.

They carefully removed the section from the header and installed out new fabricated branch. They fitted a Gas approved butterfly valve, press flange and immediately spaded off the new leg. A test was carried out to prove the modifications were safe then the site was purged back to gas. The existing plant was then recommissioned, tested and put back into service.

From our previous calculations, we had to install a gas main of at least DN100 (4″) to minimise pressure drop over the whole system. Accurately calculating and designing gas mains is very important as it can cause problems with gas flow and pressures that can make appliances dangerous.

Photo of a modified gas main

We chose to use large Scissor Lifts with non marking tyres, fitted with internal pipe racks supplied by the hire company. Classed as a construction site, working practises were strictly monitored to ensure the Health and Safety of everyone working on site.

We chose to use a stainless steel pipe system supplied by Geberit. Brackets were fitted to the roof and 136m of pipework was safely installed in two days by four operatives. We then carried out a Strength Test to IGE/UP/1 to confirm our new installation was safe.

Powrmatic TE Heater Delivery And Assembly

We were scheduled to receive the Heater and Destratification Fan which was due to arrive to the site on two separate articulated vehicles. We just had to think how to get the equipment inside without taking these lorries in or marking the floor. Our preferred lifting contractor David Stanley also provided a large Hi Ab crane, capable of the lift. David Stanley have done a lot of heavy lifts for us in the past and have very experienced drivers.

The Powrmatic TE heaters are delivered on trailers with a special sliding roof, which enables all the modules to be lifted vertically off the trailer by crane.

Powrmatic TE Heater Being Unloaded

We unloaded all the parts of the Powrmatic TE heaters from the delivery vehicles, to an assigned area of the car park outside. After identifying the sections, the Destratification fan modules was loaded onto the Hi Ab vehicle, ready to drive inside the building.

Powrmatic TE Heater Loaded Onto Hi AbWe had arranged to be delivered to site some large rolls of heavy duty plastic sheeting, which we could lay over the concrete floor so the Hi Ab made to tyre marks when driven around inside the building. We had to comply with this request as there were severe penalties for damaging the floor. With careful driving from Vince, we successfully got the Hi Ab inside the building without damaging the floor or making any marks.

Hi Ab Driven On Plastic SheetOur engineers then assembled the destratification fan first. Each module is craned into position on top of the last and secured with special plates to lock the unit into place. Air seals are applied to each module during assembly and then further modules are stacked on top of the last, until the unit is built.

Destratification Fan Being BuiltOnce all the sections were assembled, post brackets were fully locked up and the assembly was complete. The overall height of the Destratification Fan module was 6.5 m. Its a large unit as you can appreciate from the photograph.

Finished Destratification FanNext we had to reverse the Hi Ab crane back out of the building, move the plastic sheet around and form a new runway to the location of where the Powrmatic TE heater would be built up. Modules were loaded onto the Hi Ab and it was again expertly driven back into the building by Vince.

TE Heater Being InstalledThe Powrmatic TE heater module was assembled then Vince took the Hi Ab out for the final time and we cleared up all the plastic sheet and packaging and removed from site.

Final Gas Connections, Flue, Condensate And Power

Final gas connections were made by our engineers and we installed an inline Gas Meter, so the consumption could be monitored by the BMS system in the building. After carrying out a final test of the gas supply, it was purged safely to Gas using one of our burn off rigs.

The SFL Twin wall flue system was supplied by Powrmatic which was fitted to the heater, with a long vertical stack to the outside of the building. Various flue support sections were added to ensure the flue stack was well supported. As the roof already had a man safe system fitted (roof safety working lines) two of our operatives made safe access from the roof hatch on the plant deck to install the flue. Our roof workers are trained line workers and Gotcha trained and can carry out an emergency recovery of an operative, should an accident happen that requires rapid recovery. We own our own safety equipment for easy roof working under these conditions.

Condensate pipe work was installed to flow through a neutraliser (to pH adjust the condense water) which then discharged into a high volume boiler condensate pump. The pump then discharges a build up of condense through simple 1/4″ braided hose to a suitable disposal point. Traps were formed into the condensate pipe work to ensure no passing of combustion gases during operation. Because of the high volume of air that passed over the Powrmatic TE heater’s heat exchanger, a large amount of condense is created.

Site electricians provided us with a rotary isolator for each of the units and a separate switch fused spur to power the condense pump. Our electricians installed the final connections and carried out safety tests to the electrical circuits.

Once the equipment was ready to be commissioned, a full set of safety inspections was carried out and then the unit was commissioned by Martin and Trent, two of our commercial engineers. A full flue gas analysis was carried out and the burner fully adjusted as required.

The internal Powrmatic MC200 controller was fully programmed for Frost Mode Only, and a separate Heatmiser IQ+ with remote sensor was programmed on the Destratification fan.

The heater and fan were demonstrated as working and signed off by the visiting site hand over engineer. We will re attend once the customer has moved in and provide half a day free training on how to best use the equipment.

Finished Powrmatic TE Heater

Finished Powrmatic TE Destratification Fan

Looking for a Powrmatic TE Air Rotation Heater?
Contact us for a package supply, installation and commissioning price.

For further details, please visit :-

Powrmatic Ltd
David Stanley

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Powrmatic NVx LPG

Powrmatic NVx LPG Heater Installed

Powrmatic NVx LPG

The Powrmatic NVx LPG comes shipped from the factory to work on LPG gas. If you have no natural gas available on site then LPG can create an easy solution.

Generally you will need to arrange for an LPG tank to be installed, usually by your supplier. They will come to your premises and carry out a survey and discuss where the tank will be located. Another point often overlooked is the location of the upso valve. The supplier will normally pipe from the tank to the upso and locate this on an external wall. Arrange to have the upso valve located in a location where the installer can connect to it, and run gas pipe work into the building.

The upso valve (under pressure shut off) turns of the gas supply to the building, if the gas pressure falls low. This is normally caused by running out of gas in the tanks. A low gas pressure at the heater could under certain circumstances become dangerous, so all installations are protected in this way.

Powrmatic NVx LPG models are available in a wide range of outputs, from 15kW to 140kW. Remember to specify you want the heater configured for LPG, as this is a conversion carried out during manufacture. It could ship configured for Natural Gas if you don’t let us know.

Gas pipe sizing is a little different for LPG, but we have a copy of the latest, up to date charts to make sure we specify the correct sized gas main.

The Powrmatic NVx LPG heater we installed below was suspended from the ceiling using slotted channel, and suspended with 10 mm threaded rod. A horizontal flue was installed with a terminal on the outside wall.

A switch fused spur was already provided for us so we took a power feed up to the heater and to the programmer. Control as always is carried out by a Heatmiser IQ+ controller. The Heatmiser IQ+ has supported hi / lo firing so is fully compliant with ErP Jan 2018.

Gas pipe was installed in stainless steel with Geberit Mapress fittings. Gas fittings are fully compliant for LPG and Natural Gas. Stainless provides much better protection than copper and is not as attractive to thieves. Strength testing was carried out and the installation certificated for use then purged of air.

The Powrmatic NVx LPG was then commissioned by our engineer and Gas Safe paperwork raised and given to the client,

We had a cancellation on this day so two of our new apprentices installed the heater and gas main, under strict close supervision of two Gas Safe engineers. Both lads did a fantastic job and the contribution to on the job training was greatly received. Feedback from the engineers was good, they communicated and solved problems between them so fingers crossed we will have another pair of engineers in a few years time. Please note that on the job training of this type is very carefully monitored by qualified engineers, and at no point are apprentices allowed to work on the installation on their own.

Powrmatic Sales, Service And Installation

If we can help you with an LPG heating project, or supply you with a Powrmatic NVx LPG heater, we would love to hear from you. Please get in touch.
You can view the Powrmatic range of heaters by clicking here.

Please visit the powrmatic website for up to date information.

Click Image For Hi Res Image

Powrmatic NVx LPG Heater Installed
Powrmatic NVx LPG Heater Installed

Connection to upso valve using Geberit Mapress
Connection to upso valve using Geberit Mapress

LPG Bulk Store Installed By Supplier
LPG Bulk Store Installed By Supplier

Geberit Mapress (Gas) fittings used to supply gas to the heater
Geberit Mapress (Gas) fittings used to supply gas to the heater

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Powrmatic Heater Installations Winter 2017 / 2018

Powrmatic NVx Heater


A selection of some Powrmatic Heater Installations we have installed over the last few months.

Please click on the photographs for a hi resolution image

Derby Installation Dec 2017 – Gas Meter Fitted Jan 2018

Powrmatic NVx Heater
Powrmatic NVx Heater

Powrmatic NVx Heater
Powrmatic NVx Heater

Powrmatic NVx Heater
Powrmatic NVx Heater

Gas Supply Installation
Gas Supply Installation

Our own brand destratification fans
Our own brand destratification fans


Installation In Swindon November 2017

Powrmatic NVx Heaters

Powrmatic NVx Heater
Powrmatic NVx Heater

Powrmatic NVx Heater
Powrmatic NVx Heater

Powrmatic NVx Heater
Powrmatic NVx Heater

Powrmatic NVx Heater
Powrmatic NVx Heater

Powrmatic NVx Heater
Powrmatic NVx Heater

Powrmatic NVx Heater
Powrmatic NVx Heater


Installation In Leicester Jan 2018

Powrmatic NVx Heater
Powrmatic NVx Heater

Powrmatic NVx Heater


Replacement Of Two Benson Heaters With Powrmatic VPC Ducted Units
Existing Duct Modified To New Units Nov 2017

Powrmatic VPC

Powrmatic VPC

Powrmatic VPC

Powrmatic VPC

Powrmatic VPC

Powrmatic VPC


If you are looking for Powrmatic NVx heaters, please contact us or visit powrmatic.


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Heater Installations Nov to Jan 2018

NVx Duo Side View

Winter Quarter Update & Powrmatic Duo Case Study

Please see the Powrmatic Duo installation case study below.

November to January has been the busiest Winter that we have ever seen. has sold a huge amount of heaters, equipment and flue on line including lots of export sales all over the globe.

Our admin and installation teams have been working long hours and extremely hard to make sure customers equipment gets on site when required, and installed as quickly as possible. I would like to thank all our employees for their dedication and hard work.

Our brand of destratification fans have reached record sales and we have taken on extra staff to ensure build quality and delivery do not suffer. Our Wi-Fi control option has started to enter the market place, sales are gradually increasing as customer embrace the new technology.

January sales have been great, with no apparent “dip” experienced in previous years. As always we are hoping for a long, drawn out Winter for as long as possible. When this years heating season finally comes to a close, we will move onto equipment servicing and maintenance along with installations from customers who pre-plan during the Summer.

Philip Hamer

Managing Director


Powrmatic Duo Warehouse Heating – Strong’s Plastics Tamworth

We were approached by one of our regular clients in October to quote to heat another building they were expanding into. This becomes the third production facility for the client.

The new building was to house CNC machinery and an assembly plant for their products. The client designs, assembles and fits custom back boxes for pickup trucks amongst other things.

The location for the heaters had to be straight down the centre of the building. Two cranes are being installed to the building which left no other possibility and with floor space being premium, cabinets were out of the question.

We proposed the Powrmatic Duo heater and after some negotiations on pipe runs and controls, we were awarded the order.

The Powrmatic Duo is essentially a modified Nvx heater. By reversing a fan on either side and adding twin outlets, the Duo can blow warm air from both sides. The Duo has its uses, and this was definitely proven on this installation with amazing results.

Following a heat loss calculation on the building, we needed around 270kW of heat so three Duo’s were selected of 90kW each.

The gas main was a long run and following calculation, was installed in stainless steel using the Geberit Press system. The Gas Main run was carefully chosen to avoid any contact with the overhead cranes that were being installed later. Installed throughout using drop rods and rubber lined Flamco rings for stability.

Initial run was in 76mm to the first heater, then reducing down to 54mm and 35mm for the final unit. Direct from the main we provided a purge point, isolation valve and flexible gas connection to the heater.

For time and temperature control we supplied the Heatmiser IQ+ controller which interfaces easily with Powrmatic heaters.

On final commissioning and testing, the building reaches comfort level very easily and maintains all day long.

Whilst on site we were asked to quote to install a ring main within the building for air supply. Following a design from the client, we provided a 54mm header, 42mm runs and a 22mm return ring at the end of the factory. On delivery of the equipment we installed the air receiver, oil water separator and piped up through to the compressor. The whole installation was completed using stainless steel press fittings. 32 drops were provided, mainly for small hand held air tools with a few for the CNC machines.

We thank Strong’s for their continued work and wish them the best of luck with the final opening of Site C.

Please Click On The Images Below For A Hi Resolution Image

Overall View Of Powrmatic Duo Heaters Strongs Plastics
Overall View Of Warehouse

Powrmatic Duo Installed
NVx Duo Installed

Powrmatic Duo Side View
NVx Duo Side View

Photo Down Factory Of Powrmatic Duo Heaters
Photo Down Factory


If you are looking for Powrmatic heaters, please contact us for pricing, availability and installation if required.






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Combat Heater Installation – October 2017

Shows a left hand mounted combat heater

Combat Heater Installation – October 2017

Combat Heater Installation.
We were invited to provide a price for a Warm Air Heating scheme for a local steel fabrication / engineering shop.

Photo Of Two Combat Heaters

It was decided early on that they would like us to use Combat Heaters following attendance by a Combat sales rep to the site.

After attending the building we calculated the required heat load taking into account the size of the building, construction materials used and roof and wall insulation. We carefully interpret this information to make sure we choose and specify the right size heaters.

An existing gas main was within the building providing gas for the old combat atmospheric heaters. We did a calculation and provided evidence to the client that it could not support the proposed new heaters.

We did a new design based on the gas consumption of the two Combat Heaters and provided a total price for the project.

The client accepted our proposed price and we arranged to install the two Combat Heaters.

We located slotted channel to the roof sections and secured in place with window brackets.
The heater was hung by using Eye Bolts on the heater and channel, and using heavy duty steel wires for suspension.
The flues were configured as room sealed and exited the building horizontally.
Control is provided by two separate Heatmiser IQ+ Controllers.

The new gas main was installed in copper press. After risk assessing the site, the copper tube could be maintained in a safe area and would suffer very low risk of impact damage. Had the risk assessment have identified any risks of contact, we would have installed in Stainless Steel.

Following a test and certification of the gas main (and purge) and electrical supply the combat heater installation was commissioned and placed into service.

If we can offer any help with supplying and installing Combat Warm Air Heaters at your premises, please get in touch.
You can visit the Combat website for further details.

Combat Heater Installation – Photographs

Click on the photographs to see a full sized view.

Combat Heater Installation Photo Of Two Combat Heaters

Combat Heater Installation Shows a left hand mounted combat heater

Combat Heater Installation Shows a RH Combat Heater

Combat Heater Installation Shows combat rear flue


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September Installations – 2017

Combat Heater Installation

Warm Air – September Update – 2017

Warm Air – With the long nights drawing in and whats left of the poor summer weather fading, its time to consider replacing your commercial heating.

At we have a full range of products to meet your requirements and can attend site and fully install and commission for you.

  • Warehouse Heating
  • Retail Heating
  • Workshop And Auto Body Shop Heating
  • Factory Heaters
  • Sports Hall Heaters
  • Garden Centre Heating
  • Agricultural
  • Heating

We can offer a complete range of heating systems from all the major suppliers :-

Includes the full range of cabinet heaters, suspended gas unit heaters and radiant tube.

As a company we recommend Powrmatic and Combat, the only true UK Manufacturers fully building and assembling within the UK.

We can offer a free design service, site visits if required and no obligation quotes.
Our price match promise will match or beat quotations provided by others if we possibly can.

Our service and breakdown team can attend site and service your existing appliance and provide Gas Safe paperwork on completion.
If you have a breakdown and need your heater repairing, we carry a wide range of commercial spares for most heating plant.

WiFi Destratification Fan And Controller Now Available

We are pleased to announce the launch of our WiFi Destratification Fan, a world wide first for the industry!
Customers never realise the benefit of destratification, simply because the fan may not perform as expected.
With the fan sometimes 10M in the air, adjusting the unit is impossible without bringing in expensive access equipment to reach the fan.

With our WiFi solution, simply connect to the fan from a mobile device using the web browser. No apps, no complicated log in, simplicity with ease.
Make all the setting changes from your phone screen and the fan instantly responds and remembers the settings instantly.

Take a look at the WiFi Fan on our store.
We have made our controller available as a separate unit to retrofit to your existing units and will soon release a zone controller incorporating a wiring box for multiple fan controls.

A big exciting jump in technology for the heating industry in 2017.

Warm Air – Examples Of Our Work

Check out our Facebook page for photos and details of our wide range of Gas Installation work.

Here are some more photographs of works we have carried out this last week.

Click on the photograph for a larger view.

Warm Air - Powrmatic NVx Heater Installation
Powrmatic NVx Unit Heater Installation

Warm Air - Own Brand Destratification Fan
Own Brand Destratification Fan Installation

Warm Air - Combat Heater Installation
Combat Heater Installation

Warm Air - Combat Heater Installation
Combat Heater Installation

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Benson Heater Installation – OCT 2016

Benson Heater Installation

This project was a manufacturer lead passed to us to quote. Steve Latimer of Ambirad asked us to attend the site and quote to install two warm air heaters. After contacting the customer and negotiating a final price, we supplied and installed two Benson Variente heaters.

The site holds a specialist engine team that works on top of the range sport racing engines. The existing facilities installation is extremely neat and tidy and our installation was designed to not only be energy efficient but to blend in and be as neat as the existing installation.

We suspended two Benson Heating Variante unit heaters from the roof and provided a new gas main using copper. This is a further example of the Geberit Mapress system we are using to press gas mains for extra durability, speed and quality.

We installed some of our own brand destratification fans to reduce internal temperature stratification and the whole system is operated by Heatmiser IQ+ controllers.

We are due to return to site and install a Sonniger Guard Pro to a roller door within the building to provide an effective door curtain to prevent heat loss.

On commissioning the system worked extremely well and the customer is extremely pleased with the result.

Click on the photographs for high resolution images.

img_4821 img_4822 img_4823

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Powrmatic NVx Installation Oct 2016

Powrmatic NVx

Another installation of a Powrmatic Heater using a Powrmatic wall hanging bracket with rear flue.
We were asked to quote to install the unit into a building undergoing minor refurbishment.
The gas main has been installed using the Geberit Mapress system which increases installation speed and lowers the risk of gas leaks.
All joints are pressed creating a very reliable, approved gas seal.
Control is provided by a Heatmiser IQ+ Control unit.

Looking for Powrmatic Equipment? Give us a call.

Click on the images below for high resolution images.

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Powrmatic CPx Replacement

Other View - Powrmatic CPx Oil Fired Warm Air Cabinet Heater

Powrmatic CPx Heater

Powrmatic CPx Installation – Heater Replacement March 2016

We were approached by a local company in the West Midlands who had an old Combat Oil Fired Cabinet Heater which had been suffering from numerous breakdowns.

We offered to send an engineer to carry out a diagnostic but the customer asked us to quote to replace the heater. They had already decided that the old heater was no longer suitable for their needs and asked us to quote to replace.

On arrival to site we noted that the Combat Heater had been raised onto a support platform to raise the discharge nozzles above the height of the racking. We decided that the Health & Safety implications of doing this inside a working warehouse was a poor idea. We met with the on site Health & Safety Officer who agreed that if the support bracket was hit, the installation could collapse and cause injury.

Picture Of An Old Combat Heater Second Picture Of An Old Combat Warm Air Heater

We provided a quotation and were successful with the proposal and asked to carry out the works. We ordered the replacement Powrmatic CPx 90kW Oil Heater and arranged to ship to site. At the same time we ordered a Powrmatic CECx De-stratification fan to help bring the heat down at the far end of the workshop due to the height.

Our engineers attended and with the use of the customer forklift truck, removed the old heater from the bracket and removed from site. On this particular job we handled removal of the heater back to our workshop for disposal.

We located the new Powrmatic CPx heater into position and modified the existing flue and connected this to the heater using an increaser. As the flue only increases in size by 1”, we generally wont suffer from condensation issues arising from the flue gas velocity slow down.

The original controller was removed and disposed of as the Powrmatic CPx heater comes with a built in Powrmatic MC200 controller. The electrical feed was modified and a new supply installed from the local spur to the heater chassis and tested.

The oil line also needed modification. The tank was turned off and the residual oil left in the pipe work drained into a container and returned to the tank. We installed a converter into the 1/2” steel pipe work and extended using 10mm plastic coated copper oil line. This was connected to a thermal fire valve and filer bowl, before being connected to the Powrmatic CPx burner. A valve was also installed onto the steel pipework for service and maintenance purposes.

Powrmatic CPx Oil Fired Warm Air Cabinet Heater Other View - Powrmatic CPx Oil Fired Warm Air Cabinet Heater

After the oil line was correctly vented of air through the pump and checked for leaks, the heater was fired and the burner commissioned. We handed over commissioning paperwork to the client then completed the warranty document for the Powrmatic CPx heater which was returned back to Powrmatic on the customers behalf.

The MC200 control unit was fully programmed to the customers requirements and the room allowed to raise up to a temperature of 18 Degrees.

As our engineers still had a Scissor Lift on site, we then hung the de-stratification fan and installed a suitable power supply circuit back to a switch fused spur at low level for isolation and maintenance purposes. The temperature was set on the fan and it was tested for operation.

At floor level the warm air could be felt being forced back down from the roof and the de stratification process began to work.
We returned to site the following day to add two 1M extensions to two of the nozzles to aid with warm air distribution over the racking in the warehouse.

The customer was very happy with the installation and the effectiveness of the Powrmatic CPx heater as a whole.

If you are looking to install heating to your commercial premises and run on fuel oil, why not consider purchasing a Powrmatic CPx heater to meet your needs?

Contact us for free friendly advise and we will be pleased to visit your site and provide a formal quotation.

Click Here to view the Powrmatic section of our online store.

Philip Hamer
PW Maintenance

Visit Powrmatic!

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Powrmatic Flue

Powrmatic Flue On A Cabinet Heater

Powrmatic Flue – An Easy Guide To Selection And Installation

Powrmatic Flue.
One of the most frequently asked questions we get over here at from installers is how to correctly flue a Powrmatic appliance. Everything you ever need to know is noted in the “Powrmatic User, Installation And Service Instructions” which can be freely downloaded from at any time. Although the cabinet heaters are pretty straightforward, confusion arises more with the Powrmatic NVx suspended heaters because of the different flue types available. Lets take a quick look at the Cabinet Heater flue requirement first.

Powrmatic Flue CPx Cabinet Heaters
Both the gas and oil cabinet heaters are supplied from the factory with a condensate tee, also commonly known as a boot tee. This should be located directly onto the flue spigot of the heater and fixed into place.

Powrmatic Flue On A Cabinet Heater

Powrmatic Cabinet Heaters use “Powrmatic Flue System 1” which is a single wall, welded seam flue with a single crimped end to allow jointing to the next section. Twin wall (Nova sm) is also available if required.

The powrmatic flue system connected to this tee must be a closed system chimney that conforms to the requirements of EN1856-1, must be appropriately designed and components designated as suitable for the type of installation. By using Powrmatic System One flue, these requirements will be met.

The powrmatic flue system must never reduce in size and should always be either the same cross sectional area as the condense tee or larger in certain circumstances. Connections onto old flue systems of a larger cross sectional area are allowed but this should be avoided as condensation can occur internally. As the hot flue gasses pass from the condense tee into a larger flue, the velocity of the flue gasses naturally slows down as the area increases.

Environmental temperature effects of the heated space against the flue can cause the flue gasses to cool below dew point and cause internal condense to form inside the flue. The condense tee prevents this condense from flowing back into the heat exchanger on the appliance to avoid heat exchanger damage by corrosion.

If you install the heater to an existing flue and condense occurs, consider piping the water catchment trap to a drain, following any guidance or regulations that are applicable. This will prevent condense from entering the burner and causing electrical issues. It is important to note that flue gasses contain mild acids which can attack certain materials. Condense pipework must always be a non-corrodible material of minimum 3/4” (22mm) size. Copper pipe is not satisfactory.

The powrmatic flue system must have a minimum length of 2M from the condense tee to the terminal. In most cases you will need much more than this to install the flue to regulations. This mainly applies to external heaters where you could have one installed on a roof for example. The 2M minimum requirement creates the necessary back pressure inside the combustion chamber similar to a vehicle exhaust pipe.

Horizontal flue should ideally be avoided in all cases where practical to do so. In the event that you have to install a section of the flue horizontally, the ratio of 3:1 should be maintained in all cases. There should always be three times more vertical flue than horizontal.

In order to pass through a wall or avoid an obstruction, the use of two 45 Degree elbows must always be used. It is not permissible to use two 90 Degree elbows on a cabinet heater as the resistance to flow against the flue gasses is too high.

The powrmatic flue outlet must always have a correct terminal installed. In most cases a gas terminal would be used (Sweedish Cowl) or a standard oil terminal (Chinaman’s Hat) for oil. If the flue size is greater than 8” an approved terminal is not always necessary but we strongly advise that the correct terminal is used at all times.

Sufficient flue brackets must be installed to hold the weight of the flue system. The connection to the heater is not classified as a sufficient bracket as this can require disconnection for service and maintenance.

The flue must terminate externally to the building strictly following regulations as flue gasses contain carbon monoxide and in certain quantities can kill!

Location of the flue must also consider where products of combustion could re-enter the property for example:-

  • 300mm below an opening e.g. window, air brick etc.
  • 200mm below eaves or gutter.
  • 300mm from an internal or external corner.
  • 1200mm from a surface facing the terminal.
  • 1500mm vertically from another terminal on the same wall.
  • 300mm horizontally from another terminal on the same wall.
  • 2000mm from ground level

These are taken directly from the Powrmatic CPx OEM manual and could change with later revisions. Ensure you consult the OEM Manual currently in force supplied with the heater.

For roof penetrations use the Powrmatic High Temperature Flashing Kit. They work exceptionally well and if installed to manufacturers instructions will never leak.

For each cabinet heater a change over section is required. This is a length of flue pipe which is crimped both ends and used to connect the terminal the correct way round.

Straight lengths of flue pipe are available in 1500mm, 970mm and 470mm lengths.

Change over sections are also available 938mm and 438mm lengths.

Adjustable sections are also available where tight or awkward flue runs need to be completed. They are supplied in two different variations and can be adjusted from 297mm to 466mm or 447mm to 700mm.

Each and every joint should utilise a locking band and rubber seal. The seal is placed over the joint and the locking band fitted to hold the flue joint together and help prevent leaks.

The Powrmatic System 1 flue assembles fairly easily and if the above is followed there should never be issues with the flue.

Powrmatic NVx, NVs and VPC Heaters
These are the more modern design of heaters using tubular heat exchangers and utilise the new seamless spun flue system. Its important to use the genuine Powrmatic flue and accessories for these heaters.

The most confusing issue to new installers is the single wall vs concentric installation.

Single wall installation is similar to a cabinet. The heater has one flue pipe from the appliance which exist the building and discharges products of combustion.

Concentric utilises a special terminal, similar to a combination boiler with a special adapter which then splits the flue into two separate runs. Products of combustion are discharged through the inner section of flue while fresh air is supplied via the outer flue. This combination forms a room sealed appliance with a balanced flue.

Probably the biggest factors to determine if a concentric (room sealed) installation is required are :-

Combustion air
As you all know, gas heaters require fresh air to correctly burn gas. If the building has no natural ventilation and you can’t guarantee enough is available for normal use, a concentric system provides sufficient combustion air for the combustion process.

Dirty Environments
Engineering workshops, machine rooms etc all have high levels of airborne dirt and dust which can quickly cause a heater to fail. By using fresh external air in a room sealed configuration, contaminants inside the heater are kept to a minimum. You will be amazed how quickly the inside of a heater can become filthy dirty with airborne contaminants. It sticks to the insides of the heater, probes, the fan and will quickly cause fails.

The next question is to horizontally or vertically flue? This is really dependant on site specifics and if the terminal and flue can be installed to regulations. Horizontal flue can take out the requirements to roof work but remember if the flue can be touched or reached by anyone a wire guard should be fitted.

So this gives you four possibilities in all, Concentric vertical or horizontal and single wall vertical or horizontal.

The Powrmatic NVx, NVs and VPC heaters can all have the fan flue spigot rotated to offer a vertical or horizontal configuration. This is easily carried out by the installer on site in about ten minutes. The combustion fan is unscrewed, outlet covers swapped and the fan screwed back into place. The combustion air spigot is also easily changed by swapping the spigot and blank plate and a few screws. This keeps the flue system nice and neat for either orientation.

Single wall is probably the easiest install and just like the cabinet simply needs the flue taking to a permissible outside location.

For both types of flue, the maximum linear run is 6M. Use of a 90 Degree counts as 1M of flue so its always best to follow the manufacturers instructions to plan the flue design first.

Concentric uses a larger terminal section which comes as a kit with a single to twin converter section called a ski boot. When the terminal is installed and the ski boot is fixed in place, two separate flue pipes are taken to the heater.

The design of the heater is so that the spacing between the spigots will always marry up with the ski boot for a vertical run without needing any elbows.

See the photos below for a quick example.
(Click Image For Full Size View)

Powrmatic Flue Arrangements

Component wise :-

Both systems use common flue pipe.

Standard lengths are 200mm, 500mm and 1000mm.

Adjustable lengths are available sized 75mm to 230mm.

45 Degree and 90 Degree elbows are also available.

Flue terminals are supplied in four variants namely.

Single wall horizontal terminal.

Single wall vertical terminal.

These are nice and easy to fit and simply push directly into a flue pipe spigot.

Concentric horizontal and concentric vertical are also available but best ordered as a kit. The kit contents are shown below.
Click Images For Full Size View

Powrmatic Vertical Flue

Powrmatic Horizontal Flue

Again, locking bands are available to reinforce the powrmatic flue joint connections and flue systems should be adequately supported throughout their entire run.

In any case, if you need specialist advise on flue requirements then contact us here at for free friendly advise, or consider calling Powrmatic directly.

There is a handy installation guide for the Powrmatic Balanced Flue which can be downloaded by clicking the image below.

Powrmatic Flue Installation Thumbnail

Philip Hamer

PW Maintenance

A Euro Gas & Mechanical Services (Midlands) Ltd Company

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Bitcoin Payments

Bitcoin Accepted Here

We are currently testing the Bitcoin payment gateway with Bitpay. We hope to be up and running within the next week to ten days.

Bitcoin is a consensus network that enables a new payment system and a completely digital money. It is the first decentralized peer-to-peer payment network that is powered by its users with no central authority or middlemen. From a user perspective, Bitcoin is pretty much like cash for the Internet. Bitcoin can also be seen as the most prominent triple entry bookkeeping system in existence.

We are proud to take on new technology and fully support the bitcoin system.

Bitcoin Accepted Here

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Heatmiser SmartStat


Heatmiser SmartStat

Have Heatmiser finally invented the ultimate Smart Thermostat?

Well, we love the Heatmiser range here at and they offer a thermostat to cover just about every requirement you will ever have.  From standard dial type to full blown plant room controllers there is a solution for every need.

The Wi-Fi range of thermostats was with withdraw a while ago but the replacement SmartStat just takes things further into the future.

It’s based on a wired system and requires a 230V AC power source to operate. It fits onto a standard single back box with a minimum depth of 35mm from the finished wall level. If you have a shallow box then some work will need to be done but it’s not that complicated to chase the back box a little deeper and replace it.

There is a change over relay built in with three connections, the usual Common, Normally Open and Normally Closed, so linking into a combination boiler is a simple two wire task.

The instruction manual for the SmartStat shows various different configurations including installation for a Mid Position Valve install and S-Plan system.

Connections are available for remote sensors, floor sensor and air (space) sensor. Don’t forget that for under floor applications you should make sure you only use a floor sensor.

When you power up the SmartStat you can choose to use it as a time clock only or full thermostat mode. Time clock control is ideal for independent hot water and then thermostat mode suits space heating. You can choose to switch between modes at any time but the controller will dump it’s program and you will have to reconfigure it.

Next, you probably can’t wait to try out the mobile app so go ahead and configure it to talk to your local area network. It needs no hub and will connect directly to your home router. It will log onto the Heatmiser API and because all the network traffic is sourced from the SmartStat, generally you won’t have any problems with a fire wall and probably won’t ever need to worry about port forwarding.

Grab yourself the mobile app from the Apple App Store, Google Play Store or Amazon and load it to your device. Carry out the simple “pairing” between the SmartStat and your mobile app and get ready to couch potato your heating system. If you have multiple SmartStat’s then add them one by one for full control of all your zones.

As with all Heatmiser products it’s very easy to use, even with so few buttons. Set the date and time correctly then read the “comfort levels explained” section pretty carefully if you are not used to this type of controller.

The SmartStat is an optimising controller which adjusts the boiler on and off time depending on how cold the building is. In the old days of mechanical timers the heating turned on at say 7:00 AM. In the age of the optimised control, you would want the building warm for 7:00 AM. The controller decides the best time to turn on so the building is warm for 7:00 AM. Hope you can see how times have moved on.

So taking this basic theory just a little further the SmartStat lets you set comfort levels throughout the day and night, raising the temperature a little when needed and cooling back a little when you are out or in bed.

Of course with the mobile app and easy to use override functions on the physical controller you will never get cold. All the usual extras are in there, holiday mode, away mode, summer mode (standby) and the colourful graphical front end makes it a pleasure to use.

The controller is self learning and after a couple of days will have worked out the characteristics of your home to keep it just warm enough without running your boiler for hours on end. When it’s a little colder it turns on earlier, when it’s a little warmer it turns on a little later. The optimiser is designed to save on fuel and ultimately money.

The SmartStat is available for general sale on the expected launch date of 6th July this year.

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Heatmiser SmartStatHeatmiser SmartStat Sapphire Black

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Heatmiser NeoStat

Over the last few years there have been a few wireless solutions to control your central heating. Some have even had remote access or allowed you to change the settings over the internet. Some have even worked with mobile apps right from your phone, but most of the solutions have been rather complicated to install and even harder to configure.

The Heatmiser Neo is a new contender to the market and has already turned up the heat in the heating thermostat market place. Its rather sleek look is an eye catcher and with a choice of sapphire black or glacier white to choose from, it will blend in with any room in any home.

The neoStat is really easy to install, it simply just replaces your mains powered thermostat. For older systems that have timed hot water, the neoStat-hw version simply replaces your hot water controller.

For new build solutions, the minimal wiring requirements can be installed during the first fix for complete concealment.

If you had an old fashioned dual channel controller, simply mount the two neoStat next to each other for an easy fix option.

When the NeoStat (and neoStat-hw if required) are installed and working, simply connect the neoHub into your home router and turn on the power. Within minutes the system can be programmed and your heating can be adjusted from a free mobile app available on iTunes and Android store.

The neoHub generally makes an immediate connection to the internet and in only a few extreme cases does the local router cause any connection issues.

The neoStat uses a smart communication method called a mesh network. Every device becomes a repeater which greatly extends the range of the network between devices. The neo mesh network is far superior to RF systems. Being mains powered, there are never any batteries to replace.

The Neo hardware currently supports up to 32 zones and they can all be programmed independently if needed. In the mobile app, features allow you to group zones and turn selected zones or whole house on or into standby. Party mode allows temperature to be raised in a couple of rooms for as long as you like so guests always stay warm.

If you have any electrical under floor heating, neoStat-e can be easily used to control this and tie that room straight into the neoApp for even greater flexibility and control.

The neoStat periodically checks with the Heatmiser servers for firmware updates and will automatically download and update when available, leaving your new neoStat packed with new features as soon as they are released.

PW Maintenance have the full range of neoStat thermostats available on their website to purchase online, all at a discounted price.

For design and support, give us a call on 0800 0124668

Heatmiser Neo Thermostat

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The New Ambirad Benson Heating ULTRA, High Efficiency Condensing Gas Unit Heater

Introducing the “ULTRA”, high efficiency gas fired condensing unit heaters

Ambirad Benson ULTRA

 Ambirad have finally released details about the new “ULTRA” suspended gas heater which is to be sold under the “Benson” name.

The ULTRA is an exceptionally efficient condensing gas unit heater, exceeding current Building Regulations L2  and boasting thermal efficiencies of up to 108% and some of the lowest NOx emissions (under 25 ppm) ever achieved with a warm air heater.

For those that care, NOx (Nitrogen Oxide) is formed as a product of combustion and contributes directly to global warming, hampers the growth of plants, helps form acid rain and forms with other pollutants to form toxic chemicals and manufacturers are constantly working to achieve lower levels of toxic products that are discharged from their heating appliances.

The ULTRA range of heaters marks a major breakthrough in research and development and the release of the new product comes in time for Winter 2013, being introduced into the October price list.

We are awaiting pricing and PDF brochures of the new product, more details will be made available on our website soon.

Five models have been introduced with heat input of 25kW, 35kW, 50kW, 75kW and 100kW. Heat output losses are very minimal.

The heater features a self aligning burner located towards the rear of the heater. The “pull through” combustion technology effectively sucks the flame into the heat exchanger tubes and create a negative pressure throughout. As the heat exchanger is always under negative pressure no harmful flue gases can escape into the workplace.

The tubes run up inside the rear of the heater with a formed return to increase surface area then run along the top of the heater, down past the output grill on the front and into a common chamber used to collect condensate. Condensate runs free down a drain which is discharged at the rear of the heater.

From the common chamber the flue gases are fed into the secondary heat exchanger. This is a plate type arrangement using pressed formed plates joined together. These plates sit vertically in the airflow between the combustion tubes.

The powerful combustion fan sits towards the middle of the heater and draws equally across the heat exchanger.

The heat exchanger utilities a non-welded design to reduce thermal stress and to increase life expectancy.

The axial fans to the rear of the heater have been upgraded to offer increased throws and to reduce the effects of stratification.

An optional economy thermostat can be installed to the ULTRA heater so it works as a destratification fan when the burner is switched off.

As suppliers and installers we are looking forward to offering the ULTRA range of heaters.


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Powrmatic NVx Heater Installation

We completed the installation of three Powrmatic NVx suspended heaters last week, two 70kW and one 90kW.
We also installed three Heatmiser IQ+ controllers to provide efficient controls.

Recently Installed P0owrmatic NVx 70 Recently Installed P0owrmatic NVx 70 Recently Installed P0owrmatic NVx 70

The two Powrmatic NVx 70 heaters replaced old floor mounted cabinet heaters, the customer required the floor space so suspended heaters were chosen.
The Powrmatic NVx 90 heater was installed in an area that was previously not heated.


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The Powrmatic NVx 90kW Compact, New For Winter 2013.

Powrmatic are now expected to officially announce the addition of the Powrmatic NVx 90kW Compact model to its current NVx range of suspended gas unit heaters within the next few days.

The NVx 90kW Compact Gas Unit Heater is an addition to the current range of NVx heaters and offers an impressive 90kW of heat output from a much smaller chassis.

The compact model has a redesigned heat exchanger which increases its effective use of space which trims the overall width of the heater to around 1.5 metre wide, around 0.8 metre narrower than the current NVx 90. The Compact model gains in height slightly to accommodate the new heat exchanger.

The dual fans have been replaced with a single axial fan which offers an impressive performance for the new size of chassis, carefully matched to the heat exchanger layout.

The compact model pricing is expected to be identical to the current NVx-90 and we believe that the two models will continue in production side by side for some time to come.

The NVx range currently consists of 12 models with heat outputs of 10kW to 140kW that are assembled into four different chassis profiles. Models which share the same chassis profiles have additional heat exchanger tubes and burners to increase the output capacity.

The 90kW model is a very popular unit and shares a chassis profile with the 120kW and 140kW heaters. The physical requirements to produce 90kW meant it could not fit into the smaller chassis profile that the 60kW and 75kW models are supplied in.

With the 90kW being a top selling model, Powrmatic have invested in the Compact model to respond to requests from customers and installers for a smaller unit.

We look forward to adding the Powrmatic NVx 90kW Compact to our store, and recommending this new heater to customers in the future.

Philip Hamer

8th September 2013

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Heatmiser IQ+, setting the standard for efficient space temperature control.

Heatmiser IQ+
Heatmiser IQ+

The Heatmiser IQ+ controller has been used in the heating industry for several years and continues to offer a value for money feature packed solution still not fully met by any other device.

At we now recommend the Heatmiser IQ+ Controller for every heater we sell, install or to those looking to upgrade their current heating control.

The controller is supplied in a strong plastic industrial enclosure and features a membrane keyboard which forms the whole front legend of the controller. The buttons operate well and provide a level of tactile feedback when they are pressed. The controller features an LCD display to show the current status of the heater and for programming. The front panel cleans easily and is ideally suited to both clean and dirty environments.

All aspects of the IQ+ controller can be pass code protected leaving very little that can be changed or modified without a code.

The IQ+ allows for three switching periods (on / off times each day) and is a true 7 day programmer. Separate day and night temperatures can be programmed into the controller and final space temperatures require a pass code to modify. Frost protection can be enabled in the device if required to protect pipework or stock in cold periods.

There are several operating modes and override modes available and the various options can be preset and locked into the controller to prevent unauthorised modification.

One of the many energy saving features of the IQ+ is the controllers self learning optimisation feature. Self learning optimisation puts the IQ+ in full control of your heating appliance and allows the controller to calculate how long it needs to operate to achieve your required space temperature. On colder days it starts the heating earlier and on warmer days it turns it on later. The time the heater is switched on is reduced and energy is saved. It can also be used as a conventional controller where occupiers prefer to turn the heater on when they arrive, rather than have the space to temperature on arrival.

A reset circuit is built into the controller which allows the controller to sense that the heater has locked out and can be configured to re-set the heater. This is a very useful feature when used with a suspended type heater, where the reset button is mounted on the often inaccessible heater.

As with all heater controllers a fan override option allows the heaters main fan to be turned on in the summer months to offer some levels of ventilation in the space and up to five holiday periods throughout the year can be defined for when the heater is not required.

The controller stores information about temperature, burner history and hours run for a period of 12 months and this can be displayed on the controller screen. This information can be used to calculate operating costs and is useful to service engineers when on site. The controller can be programmed to alert the user by means of a displayed alarm when a service is due, based on the number of hours the burner has operated.

One of the more advanced features of the IQ+ controller is its ability to operate a modulating burner. On a conventional burner assembly it can either be turned on or off. When a small amount of additional space heat is required a conventional burner assembly turns on full and satisfies the heat. When the space is heating up the burner assembly operates until the temperature is reached then it switches off. Control in this manner often suffers from overshoot and the space exceeds it’s set temperature.

When coupled to a modulating burner, as the space approaches it’s required temperature or set point, the controller signals the burner assembly to reduce its heat output. Control is normally achieved by a 0 to 10V DC signal applied to a modulating gas valve inside the heater.

This way the amount of gas used to achieve and maintain the space set point is reduced and this saving is made directly in the fuel bill by the end user. This feature can only be used if the appliance supports a modulating burner. The modulation parameters can be adjusted in the program to suit the appliance being controlled.

Some cabinet heaters feature high / low modulating burners which essentially have three modes of operation. Off, low fire and high fire. The IQ+ can easily be configured to support these types of burner for additional energy saving.

With the addition of a black bulb sensor, the controller and program can be configured to operate a range of radiant tube heaters. The controller can also be configured to use a remote sensor, has a fan proving input and fan controller relay to allow operation of a duct mounted unit. For basic operation the controller contains an accurate internal space sensor which is used by default. Additional remote warm air space sensors are available and can be added if required.

For sites with a number of zones (different spaces with different heaters), up to 30 IQ+ controllers can be networked together to provide an easy to use central control configuration. Each units control parameters are stored in the local controller so in the event of the network cable being damaged each heater will still function as last configured. Each IQ+ controller on the network can be allowed full access, locked to allow only local access or can be totally locked for no access at all.

Any IQ+ configured for full access can be used to program any other controller present on the network. A configuration created on a local IQ+ can be copied to all devices on the network if required, useful for global site wide updates. For minor changes, they can be done directly to a remote IQ+ or single parameters updated globally as required.

The IQ+ supports multi country zones and the operating language can be preconfigured on the device. We export warm air heaters worldwide and this feature is very useful, the manual supplied with the heater is also multilingual.

The Heatmiser IQ+ along with a huge range of other Heatmiser products is available to purchase in our online shop, please follow the link below.

Heatmiser Time & Temperature Products

Philip Hamer

8th September 2013

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Welcome To Our New Website

Welcome to, Suppliers Of Powrmatic, Benson, Reznor, Ambirad, & Combat Industrial & Commercial Warm Air Heaters, Radiant Heaters & Energy Saving Accessories.

We have recently carried out some major work to our website, mainly to make navigation easier and to provide a better all round shopping experience.

We hope you enjoy our new updated website!