Wall mounted industrial electric heaters – Industrial fan heater

Industrial wall mounted heaters – electric

Wall mounted industrial electric heaters from Flexiheat UK these electric fan heaters are for climate control or heating of buildings where off the floor wall mounting is required. These electrical heating space heaters have PTC heating elements with protection against overheating of the heater. The fan fitted to the electric wall mounted heater has a three speed fan for varying the airflow. They can be fitted with a thermostat for accurate temperature control.

Wall mounted industrial electric heaters- 3 Phase/ 415 Volt from Flexiheat UK

Wall mounted industrial electric heaters are a great heating solution, for the heating requirements for industrial and commercial environments or commercial applications such as factories, warehouses, garages, shops or any large areas that require installation of wall mounted electric heaters to heat either the staff or customers, with comfort heating powered by electricity.

These industrial heaters, are wall mounted fan heaters with the heating capacity, to quickly achieve the heat output and temperature you require. These wall mounted electric heaters benefit from a very low noise level, with intelligent fan control that not only controls the fan speed of these wall mounted heaters, but can adjust the heat output for improved energy efficiency.

These heaters are designed for industrial and heavy commercial use and are built to work correctly in these environments – these are not domestic ones – these are truly industrial units with the many benefits of sturdy construction, industrial grade heating elements which are well suited to larger industrial environments and the heating of them.

Any industrial building or a larger industrial environment that requires an electric wall full heating system should consider our fan heaters, as they have a very low noise level and produce a nice comfort temperature with a great airflow temperature.

In order to produce a warm airflow temperature, the wall mounted heaters fan speed automatically adjusts in relation to the room’s current temperature via intelligent fan control. When the heater model is powered on in a cold room, this prevents these installed wall mounted heaters from blowing cold air into the room. The airflow temperature depends on what heat setting that is selected either manually or automatically by the controller used to quickly achieve the desired room temperature.

Running costs for these wall mounted electric heaters / fan heaters is good as they are 100% energy efficient.

They are also cheaper and easier to install than wall mounted water heated air heaters, as water heaters require both a flow and return pipework, installed on the wall or up in the ceiling area to bring water to the water heaters, as well as other accessories such as pumps. Also, they are cheaper and easier to install than gas fired heaters, as they have no flue pipe system to install through the ceiling or wall of the commercial premises.

Wall mounted electric heaters industrial

These wall mounted electric heaters free up valuable floor space, which is often at a premium in factories, warehouses, or a garage making these models particularly suitable for heating these type of environments with their large heat throw. These wall heaters are designed for hard work and are ideally suited to large workshops and many other commercial applications resulting in an economical full heating system.

An installation picture of our electric wall mounted industrial fan heaters 3 phase from Flexiheat UK these electric fan heaters are for climate control or heating of buildings where off the floor wall mounting is required. These electrical heating space heaters have PTC heating elements with protection against overheating of the heater. The fan fitted to the electric wall mounted heater has a three-speed fan for varying the airflow. They can be fitted with a thermostat for accurate temperature control.

An install of our wall mounted electric heaters industrial – these are 3-phase electric fan heaters from Flexiheat UK

Range options – The “S” for the smaller wall heaters  – up to 10.8 kW output or the “L” for the larger wall heaters-  which is up to 22.8 kW output

Wall or ceiling mounted industrial electric heaters LEO EL form Flexiheat UK; fan heaters wall; heaters wall mounted; industrial fan heater; heating; fan heater wireless

LEO EL Range of industrial electric wall mounted heaters from Flexiheat UK

These electric fan space heaters have a fan IP rating of 20 –

The smaller unit has 2 heat settings or outputs – 5.3Kw or 10.8 Kw and the larger has 3 heat settings or outputs – 6.8 kW , 16.3 kW or 22.8 kW.


Download the Electric Industrial Unit Heaters EL BMS Flexiheat Brochure

We also do light industrial heaters or commercial electric fan heaters models which are electric wall mounted electric heaters which can be run off a single phase electric supply, however the maximum output this range of commercial heaters is limited to 6kW and the air flow and heat throw range of these fan heaters is somewhat less than our industrial heaters range.

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Commercial electric heaters from Flexiheat UK – fan heater wireless

But being more compact fan heaters, these commercial heaters are suitable for heating shops or small garages where floor space is at a premium and the rooms air environments do not have too much dust. These heater units can also be supplied for heavy domestic environments as well.

Mounted wall control accessories 

This range of wall mounted electric heaters can be supplied and connected to various control options to produce an even ambient temperature from floor to ceiling and additionally, these mounted industrial fan heaters are equipped with an overheating protection system (both for the heater and fan).Both control options have a thermostatic control and a ventilation only mode which allows the fan to move the ambient temperature air flow around the area served by the heating system, which is useful in the summer periods.

We do a basic control option – the TS controller which has temperature and fan speed switches and thus control of the fan heaters- The fan speed control, and thus the airflow is manual, whilst the temperature and heat control of the heater and room via the thermostat is automatic on these TS units.


ts controller for our wall mounted electric heaters;

TS controller for our wall mounted electric industrial heaters Flexiheat UK



or we do a more advanced control equipment for this heater, which adapts the ec motor on the heater, and adjusts or switches the airflow and heat output levels according to the set temperature of the thermostat in the room. This wall mounted controller is designated the T-Box and is perfect for thermostat for industrial and commercial environments.

T Box controller for Leo Electric unit heaters from Flexiheat UK; electrically heated air; heaters wall mounted; industrial fan heaters

T Box controller for Leo Electric unit heaters – full BMS compatibility

Mounted on the wall or ceiling even

This wall mounted heater range can if so, required be ceiling mounted. Should the installation of the industrial fan heater change or the wall or walls space be required for another purpose, then you can mount these industrial heaters from the ceiling.

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Wall mounting heights for our industrial electric heaters Flexiheat UK

Note for ceiling installation – there must be a minimum of 20 cm from the back of the heater to the ceiling.

Wall Installation 

When wall mounted the maximum height for the smaller “Leo S” model is 3 Metres .The larger heater, the “Leo L” model ,can be wall mounted up to 6 Metres from floor level. Both units can be wall mounted at a lower level if so required.

wall mounted fan heaters

For these wall mounted electric heaters we can also supply a mixing chamber which allows fresh (outside) air to be brought into the space something we can’t do on our commercial heaters mentioned above. The air can be heated via the heat exchanger and then directed within the building, depending on the requirements. PTC electric heaters are used to heat the electrically heated air flow, which is subsequently blown within the large areas or room, depending on the needs. There are three air intakes in the mixing chamber: two for recirculated air and one for fresh air. The degree of damper opening may be easily adjusted from 0 to 100 percent.

Our fan heaters wall mounted electric heaters with mixing chamber are equipped with a filter – as standard it’s a coarse 80% (EN ISO 16890-1E) class filters installed on the air inlet. These filters ensures that the majority of coarse debris is filtered out from entering the wall mounted fan heater and its machinery, and wiring accessories.


3 Phase wall mounted industrial heaters

The availability of a 3-phase supply, as with any other electric heater type, greatly expands the potential alternatives as compared to a single phase. Three phase is not a problem in most industrial environments with electrically operated equipment. All of the machinery will run on three-phase power, and three-phase circuits will be installed. The existence of 3 phase not only expands the number of heaters accessible, but also the range of heating output possible, with a 3-phase wall mounted heater capacity typically limited to 22kw within single fan heater. You can use multiple heaters wall mounted to cover the heating requirement. These electric fan heaters have the potential to heat very large industrial and commercial working areas all the way down to shops etc.

Commercial and industrial wall mounted electric heaters

Should you require more information, availability or prices on our wall mounted industrial electric heaters / electric wall mounted industrial heaters then please don’t hesitate to call us / contact our sales team on 01202 822221 or use our email contact form via the contact us tab.

12kw Electric Boiler – Electric Boilers

12kw Electric Boiler – Electric Boilers

12kw electric boiler; 12 kw electric boilers;

Our 12kW electric boiler can be used for central heating and to produce domestic hot water as well, via an indirect cylinder. Whether the central heating system has standard radiators or underfloor heating systems, our electric boilers can do either or even both. This is electric heating a wet central heating system, with high energy efficiency.

They are the perfect new boiler solution for properties without a natural gas mains gas supply or where flueing requirements prevent the use of gas boilers, oil boilers, or even solid fuel boilers or electric storage heating.

All of our 12kw electric boilers will modulate their output to the heating requirements. This reduces the electricity consumption used and, subsequently, the fuel bills and running costs.

With a 12kW output, these electric boilers can be powered by either a single phase 240 Volt electric (the most common electric supply in UK homes) or a three phase 400 Volt electric supply.

If you buy from a supplier or produce your electricity from renewable energy sources- such as wind energy sources or solar electric energy, then you’re heating and hot water system can be zero carbon rated electric energy.

Electric boilers

Advantages / Benefits at a glance:

  • No risk from explosion or carbon monoxide with electric boilers
  • High efficiency – 100% – as no heat is wasted in the combustion process(as there is none) and flue or chimney system unlike a gas boiler or oil boiler.
  • Gas boiler restrictions mean that a annual safety certificate is required for a rented property with a gas boiler – this is not the case for wet central heating electric boilers, they do not require a annual safety certificate – that’s right no annual safety certificate is required !
  • Flexible installation location for the electric boiler -the lack of a flue or a chimney and no fuel tanks allows for more flexibility in the installed position, it also reduces the install cost too. Almost silent in operation too.
  • Heating and domestic hot water for your property when used with an indirect cylinder
  • Suitable for use on open vented systems or sealed heating systems. When used in older types of open vented systems, you require a minimum head of 8 mtrs on the boilers. Open vented systems are very rare these days, as a sealed heating system offers so many benefits.
  • Light weight and compact unit – these wall mounted electric boiler units are light weight, and can be installed in many locations – especially useful in smaller properties – all pipe work connections are located at the bottom
  • Flexible installation location with no fuel tanks to install
  • Reduce your carbon footprint, you can use solar panels to help power this boiler type
  • A long life soft start electric boiler system with zero volt switching – reducing maintenance, service and repair 

12kw Output  

  • Which is 12,000 Watts or 40,944 Btu’s of electric output for the wet central heating system.

Energy saving pump with protection against clogging

  • During a lengthy boiler shut-off period, regular spinning (once every 24 hours) keeps it from becoming clogged / blocked.

Very quiet operation

  • Thanks to the silent triac power switches on these 12kw electric model boilers, they are virtually silent, with no moving parts – zero volt switching.

Smart electronic modulating system with step less regulation

  • In low power steps or jumps of 2.5 kW each – the modulating electronic control of this wall mounted heating boiler, will ramp up and down the power steps or levels , to suit the central heating system requirements – be it underfloor heating or standard radiators – this auto heating regulation mode or process ensures reduced energy consumption, as the electric boiler matches the heating output to the demand of the standard radiators or underfloor heating systems, resulting in lower energy bills.

Suitable for Radiators or under floor systems 

  • Long life soft start system – which gently starts this boiler type – ensuring that there’s no power surges.

You can use a controller with “OpenTherm +” communication

  • These are your “Nest” or “Siri” type of room thermostat, that can be a wireless or internet room thermostat – that you can control your electric boiler from an app on your phone, pad or computer. Allowing you to control your central heating system on the go.

Or you can use traditional ambient thermostats to control the operating temperature

Possibility of temperature regulation according to the room or outside temperature

  • Possibility of remote control of the Electric boiler using an SMS message in conjunction with an SMS module ( optional extra)
  • Digital control panel with a clear two-digit LED digital display – for heating and hot water.
  • Safety switch protection – zero volt switching
  • HDO communication – remote switching of the electric supply the boilers to a low rate electricity tariff- very handy if your on an economy 7 type of cheaper tariff electric scheme – saving costs.
  • Possibility to control the water temperature output operation with a 0 – 10 Volt signal
  • Possibility of producing hot water with an external indirect water calorifier / cylinder when using our three-way valve.
  • Top design – with all the components to operate a wet central heating system, with all pipework connections easily accessed as the bottom of the boiler, for easy of installation. The auto air vent is located at the top of the boiler, to ensure it gets the air removed from the boiler, quality products are used throughout.
  • Small dimensions of the 12kw output units – greater possibility for installed locations – and lower water content
  • Integrated frost protection for this boiler type – to heat the property, and prevent burst pipes
  • Auto air vent – to remove any air from the units heat up chamber

Heating only or central heating & hot water

Our boilers can be used heating only or central heating & domestic hot water (DHW) when used with an indirect cylinder (which can be an unvented or an open vented systems), you can provide ample amounts of domestic hot water for your bath, or shower, as well as your dish washing needs. We highly recommend an unvented indirect cylinder, due to the benefits of mains pressure DHW.

At 12kw output you can’t get an 12kw electric combi boiler to produce an adequate flow rate, or adequate water temperatures , especially in the winter period ,when you require warm water the most. A combi boiler is only really a suitable unit or solution when you have a 3 Phase electric power supply as they require the higher Amps to do the job instantaneously.

This is the solution for an electric combi boiler for 15kW or under – using a small indirect hot water cylinder, as with 1 phase / 240 Volt you can’t get an combi boiler to produce enough flow rate to run a bath or shower in the winter period – when you need DHW the most ! quite simply a true electric combi boiler that produces water on demand won’t work at 12kw output or below.

We go into more detail on our 12kW electric combi boiler option more on its own dedicated webpage.


electric boilers for heating and hot water;electric boilers for hot water and central heating; electric hot water boiler system

A diagram showing how an electric central heating boiler is connected to a Domestic Water Cylinder – with stainless steel heat exchanger.

1. These electric boilers have an automatic system in them that operates both the heating and the indirect DHW cylinder via a 3 port valve ( no S plan configuration or Y plan configuration should be used)

2. It operates in switching mode

3. DHW always has priority

4. For heating it works at “heating” temperature – various temperature (25 to 80°C etc), can be set and controlled – and you can use Equithermal room thermostat control –

Equithermal control is compensated weather control- the boiler automatically drops the flow temperature relative to the weather conditions – for example on a day when the temperature is 12C outside – and you want 20C inside, the unit works out that you only require 50C to the radiators, and this saves you energy and thus running costs.

The boiler then automatically switches on the pump and heating elements and regulates to the desired temperature for the heating system.

5. For the DHW cylinder – which can be a , the electric boiler heats up to a higher temperature (usually 75-80°C, to heat the DHW cylinder as quickly as possible) – this automatic control closes the heating circuit and opens the DHW heating circuit, switches on the pump and heating elements and heats to a higher temperature (75-80°C) and heats the DHW cylinder very quickly (100 litres in approx. 10 – 20 minutes!)

6. After the DHW Cylinder is heated, it switches to heating (see “4.”)

Why is this set up important?

Because you can have two required temperatures – i.e., the heating side of the boiler, which may be running underfloor heating – which needs a maximum temperature of 45C, of if the electric boiler is compensating the flow temperatures to a radiator system, for example when the thermostatic radiator valves close  – it may have reduced the flow water temperature output to 50 or 60C – This would not be a high enough temperature to heat the indirect DHW cylinder

12kw electric boiler cable size

12 kw electric boiler cable size should be 16 mm2 for use on 1 phase 240Volt electric supply. After installation, all electrical work must be tested in accordance with IEE norms and NICEIC inspection, and a completion certificate must be obtained.

Electric heating company installation

Any electric heating company or a plumber in conjunction with an electrician can install our boilers , there’s nothing special to them and they work with all the standard manufacturer radiators, thermostatic radiator valves, under floor products that standard gas or oil boilers will. Thermostatic radiator valves are used to control individual room temperatures.

More Information / Prices

For more information or prices on our 12kW electric boiler options , then please don’t hesitate to contact our sales team on 01202 822221 or use our email contact form via the contact us tab on the website.