Commercial Electric Heaters – The FH Range

Commercial Electric Heaters- Output Range – 3kW to 42kW / Most of these units are 3 Phase – 400 Volt – except our 3kW model which is 1 Phase /240 Volt

Designed and built for Industry, our FHE range of portable Commercial Electric Heaters are a a popular addition  in many of the world’s leading hire fleets and industrial supply brochures. These large and robust commercial electric fan heaters are portable and suitable for applications where 415 Volt / 3 Phase electricity is available

Designed using the very latest in airflow &  heating technology,  our commercial electric space heater range includes high air volume units suitable for ducting through numerous outlets or long distances.

All of our range of commercial electric heaters are built to withstand the rigours of industrial use , using the  high specification of materials and production methods. Our expansive range has something to suit every application and is an ideal safe,clean and fume free alternative to diesel and gas.

With the ability to duct to 15 metres  from a single unit, our FHE Series of commercial electric space heaters now offers integrated vents made from the same high quality and  high gauge steel as the rest of the unit and assembled as an intrinsic part of the chassis rather than a separate item.

Commercial Electric Heaters Product Applications –

  • Suitable for most Industrial and Commercial electric heating Applications
  • Dockyards and ship building
  • Power stations
  • Factories
  • Construction
  • Forges & Mining
  • Processing plants
  • Military Installations
  • Warehouses
  • Marquees & Events
  • Exhibition halls
  • Hospitals
  • Temporary Buildings

Commercial Electric Heater Running Costs

Using a electric blow heater remains one of the most cost effective solution for providing emergency or supplementary heat for a particular space in your commercial heating application or office.

To work out an accurate running cost for an electric heater you can use the below calculation:

Calculating an accurate running cost can vary from room to room because of many factors for example,  number of doors and  windows, building condition, insulation levels  etc. However the following calculation can be used to provide a general idea:

Energy input (kW) x pence per kWh= running cost.

For example a 3kW fan heater run continuously (without stopping) for 1 hour would be:

3kW x 14p/kWh = 42p per hour

The calculation above is based on 0.14p per kWh – please check with your current electricity bill for the exact hourly rate you are currently paying.

Commercial Electric Heaters – Product Range

Firstly our smallest unit which is a 3 kW electric fan heater

FHE3  Industrial Electric Heater – 3kW  

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3kW Industrial Fan Heaters


  • Sensible Heat Capacity =  3kW / 10,236 BTU’s
  • Approx Airflow Rate = 423m³/hr
  • Fan Type = Radial
  • Electrical Supply = 110 Volt or 230 Volt / 50Hz – Single Phase
  • Plug Size = 32 Amp – for the 110 Volt version or  13 Amps for the 240 Volt-  both Single Phase
  • Sound (at 3mtrs) =  45dB(A)
  • Spigot ( optional )  = 200mm
  • Mobility = Portable
  • Remote Thermostat – Optional
  • Dimensions HxWxD (in mm) = 360 x 300 x 330
  • Weight = 10kG
  • Over temperature protection  = Yes
  • Max Ducting = 2 metres with optional spigot accessory

This 3kW Industrial Fan Heater , is a robust and sturdy solution to heating small areas. These electric heaters have an internal room stat, that allows you to control the temperature in the room from 0 Degrees to 40 Degrees C, which also makes them a great solution as frost protection heaters. As they also available in 110 Volts, the are a great heater for building sites and building huts to provide heat to keep the workers happy , and/or to use the warm air to help cure building materials , such as plaster , concrete, paint etc and speed up the building progress.

Then our premium range of commercial fan heaters – These Electric Fan Heaters can only be used in a free blowing mode and not ducted ( see below on the web page for ducted units)

Premium Commercial Electric Heaters – Zinc Plated – From 6 to 20 kW Output – All units are 3 Phase with  Digital Control

This premium or upgraded commercial electric fan heater range , called the “FHNXG” . This range of commercial fan heaters benefits from a zinc plated housing and a more capable control system, that allows you to automate the control of  the temperature in the area to be heated. They have a digital control system that allows you to –

Delay start -Programmable On feature – This feature enables the user to postpone the starting time of the industrial electric heater by up to 99 hours.

Delay stop – Programmable Off feature – This feature enables the user to extend the operation of the industrial electric heaters by up to 99 hours.

Post ventilation – This feature (setting time between 1-9 minutes) enables the electric fan heater to cool down before eventually switching off. This saves and utilizes the energy to it’s maximum, as the residual heat is fully utilized, and blown into the area that is being heated.

Ventilation only mode – This unit can also be used in a ventilate only mode which is useful in the summer months to move hot or stagnant air.

Digital Temperature Control – These commercial electric fan heaters can automatically control the room temperature up to a maximum of 35 Degrees C and are an ideal solution for someone looking for a frost protection heater, or whereby you have a requirement to keep a area heated to a specific temperature point . The heater will automatically come on , if the room temperature falls under the desired temperature you select ( up to and including 35 Degrees C) , the heater automatically switches off when that temperature is achieved.

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Commercial Electric Heater / Commercial Fan Heater – The FHNXG Range

Technical Specifications of the “FHNXG”  Commercial Electric Fan Heaters

Model 9kW15kW20kW
Output                                                                          kW6  / 97.5  /  1510   / 20
Mains Voltage400400400
Maximum Mains Current  – Amps132126
Fan Diameter     mm315315315
Air Circulation rate                                                    m³/h1,7002,2003,000
Dimensions    ( L x W x H )                                    in   mm340 x 390 x 510530 x 390 x 510530 x 390 x 510
Weight                                                                           Kg’s7.5910
IP RatingIP44IP44IP44

Commercial Electric Heaters Model – FHE23

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  • Heat capacity – 18kW / 61,416 BTU
  • Free Blowing Electric Commercial Fan Heater only – Can’t be Ducted
  •  Supply – 400 Volt / 50hz – 3 Phase supply
  • Plug Size- 32 amp
  • Airflow – 1,850 m3/hr
  • Adjustable Thermostat
  • Sound (at 3 mtrs) – 60dB(A)
  • Dimensions HxWxD (mm) 415x345x504
  • Weight -20 kG

Mobile / Portable Commercial Electric Fan Heaters

There are two heaters within this commercial space heaters electric range , the first has a maximum output of 18kW , this commercial electric heater is designated the  FHEHT18 , or we have the FHEHT30 model, which will do maximum heat output of 30kW of output.Both of these require a 3 phase electrical supply , and should only be used in door or protected from the elements. These commercial electric fan heaters can operate in heating mode (either full or half power) and in ventilation mode (with heat elements turned off) and can utilize a flexible warm air duct , of up to 15 metres in length as well as a remote thermostat and controller if so required by site conditions. or can be used in just a free blowing configuration.

These Commercial Electric Fan Heaters features are –

  • Thermal protection to protect the unit from overheating
  • They are equipped with wheels and handles for easy transport
  • They have both a heating and ventilation mode
  • A well made and durable commercial electric heater
  • Are suitable for stacking – saving the space required for storage and are perfectly suited to the construction equipment rental market
  • You can duct the these heaters up to 15 Metres
  • There is an option of a external controller and thermostat
  • Optional frame protection kit ( see picture below ) which protects these industrial electric heaters against damage to the device as well as easier transportation by car
  • or lifting by crane
  • Accessories such as warm air diffuser’s, warm air duct “Y” connectors ( which allow 2 warm air hoses to be connected), electrical extension cables ( in 5,10,15 or 20 metre lengths)
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A picture of commercial electric heaters / commercial electric fan heaters / electric commercial heater up to 30kW output from Flexiheat UK

Technical data for the FHEHT18 Commercial Electric Fan Heater

Power Output : 9/18 kW – ( 30,708 or 61,416 Btu’s /Hour)
Air flow : 1,700 m3/h
Power supply : 3 Phase 400/50-60​ V/Hz
Rated current : 26 Amps
Plug: 32 Amp/5 Pin
Protection rate: IP24
Dimensions (LxWxH) [ in mm]: 475 x 715 x 615
Weight : 30 KG’s

Technical data for the FHEHT30 Commercial Electric Fan Heater

Power Output : 15/30 kW – ( 51,180 or 102,360 Btu’s /Hour)
Air flow : 3,500 m3/h
Power supply : 3 Phase 400/50-60​ V/Hz
Rated current : 43.5 Amps
Plug: 63 Amp/5 Pin
Protection rate: IP24
Dimensions (LxWxH) (in mm): 571 x 941 x 730
Weight : 45 KG’s

Additional accessories available for the “FHEHT” range of Commercial Fan Heater’s include remote room stat, a remote heater controller and a heater protector frame

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Or for using these Electric Commercial Heaters in conjunction with warm air hoses or ducts , we have the following accessories available – Warm Air Hose Splitter or “Y piece” and also Warm Air Diffusers for distributing the warm air into the desired area. and particularly suited to marquee heating applications.

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Both of these commercial electric fan heaters comply with the following standards: EN 60335-1, EN 60335-2-30, EN 62233, EN 55014-1, EN 55014-2 and meet the requirements of European directives 2006/95 / EC, 2004/108 / EC, 2011/65/EC.

Download the Flexiheat Brochure FHEHT Commercial Electric Heaters /Commercial Fan Heaters

Commercial Electric Heaters Model – FHE42

Commercial Electric Heaters 42kw

  • 42 kW Nominal Output Heater – With two stage output – 21 kW or 42 kW
  • 63 Amp , 400 Volt,  3 Phase supply
  • Airflow Rate – 4,000 M3/hr
  • Maximum Ducting Length –  30 Mtrs
  • Spigot Diameter –  500 mm
  • Weight – 130 KG
  • Adjustable Thermostat
  • Fork pockets -making the unit easy to transport
  • Lockable castors – which make this commercial electric heater easy to move
  • Sound Level at  3 Mtrs –  73 dB(A)
  • Dimensions HxWxD (in mm) – 1000 x 700 x 1100

The most powerful 63 Amp heater available, which can be ducted up to 30 Metres . Designed and built for industrial use the FHE42 features variable heat output, 24 Volt control circuit for safety, remote thermostat socket, spigot, over temperature protection and an auto run on as standard.

Commercial Electric Heaters / Commercial Electric Fan Heaters for Sale

Should you require anymore assistance or information on our comprehensive range of Commercial Electric Heaters / Commercial Fan Heaters Electric / Commercial Fan Heater , please don’t hesitate to contact our sales team on 01202 822221 or click here for our email contact form