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Whale Heat Air Underfloor Space Heater 3GT (Gas Only)

£637.50
In stock

Whale Heat Air Underfloor Space Heater 3GT (Gas Only)

Part Number
J46898
OEM Part Number
SET-SL3-511/A
In stock
£637.50

Fast heat up and fully automatic output modulation for enhanced user comfort. Quiet night-time operation. Even and well maintained heat distribution.


Please reach out to a fitter prior to purchase, for confirmation your vehicle will support the weight of the unit and for assurance this product is appropriate for your vehicle. If you don't already have the experience or tools required for the installation, we recommend you ask a fitter to do it for you. For more information on how to use this product please refer to the in-box user guide. 

Availability: Available in 2-3 days
Delivery: Mainland UK Only. For overseas and international shipping email us at [email protected]

Quality Whale product. Add a powerful gas heater to your van, camper or caravan by fitting the Hear Air 3GT 3KW Space Heater beneath the floor of your vehicle!


At a glance:

  • Great quality Whale product, with safety standards you can rely on for peace of mind,
  • The digital control panel makes setting up and adjusting the Whale Heat Air Space Heater quick and easy,
  • Runs on either propane or butatne, giving you versatility depending on when and where you’re camping,
  • Powered only by gas, so won’t run down your leisure battery by keeping yourself warm,
  • Control the temperature in your camper, so you can go on adventures throughout the year.


The Whale Underfloor Space Heater!

A great way to get heating into your camper, this Whale space heater will allow you to use your van through all weathers and seasons, freeing you up to truly live your best van life!

It’s powered by gas, and is mounted beneath your vehicle, so it won’t drain your fuel tank or take up precious space in your interior.

This unit is the 3GT Whale Heat Air Underfloor Space Heater, which is also available in 4GT and 5GT.

Investing in this lightweight, powerful space heater is a fantastic way to ensure you’re able to stay warm and comfortable all year round, and can use your van, camper, motorhome or caravan in any weather and any season.


Technical information:

The Whale Heat Air Underfloor Space Heater will work at altitudes between 0 and 2,750 metres above sea level. However, the output of the heater may be limited at higher altitude, depending on ambient and operating conditions.

Suitable for caravans, motorhomes and camper vans, and available in 2 power options, 5 GE and 6 GE, Heat Air is the versatile heating solution capable of running on gas and electric for maximum output, electric only when on site, or gas only when wild camping.


Like all Whale heating products, Heat Air is designed to be installed underfloor, opening valuable internal living and storage space. This not only saves space but gives manufacturers freedom to think outside the box. Consumers benefit from increased bunk space, full length wardrobes and longer beds. Weighing only 8.7kg with a compact and rotatable design, Heat Air is designed to help adventurers enjoy their freedom anytime, anywhere with total comfort day and night.


Easy-to-use, intuitive control panel. Specifically designed for use in campervans. Compact, lightweight and space saving with narrow rotatable design. Installed underfloor, maximising valuable living and storage space. Customisable installation, creating a blank canvas for vehicle designers. CI-BUS control compatibility.


Size and weight:

Measures 559 mm by 165 mm by 175 mm,

Weighs just 8.7 kg,

Ingress Protection: IP 45.


Temperature information:

Storage: -40°C to 70°C,

Operational: -20°C to 50°C,

Control: 5°C to 32°C.


Gas information

This 3GT Whale Heat Air Underfloor Space Heater runs on either Butane or Propane, at 30mbar.

Its heat output is between 1.4 to 3.3 kW, and the gas consumption is between 109 to 239 grams per hour (g/h).


Electrical information

The unit requires 10.1V to 15.9V of DC power. The heater will draw between 0.6A to 6.5A, with an average of about 1.8A, and draws 0.008A while on standby. A 10 Amp, 5 3 GT fuse is required to manage the circutry.


Product contents:

• 1 x Gas heater,

• 1 x Control panel,

• 1 x LIN cable and connector,

• 1 x Combustion air intake flue,

• 1 x Combustion air intake silencer,

• 1 x Combustion air intake clamp,

• 1 x Exhaust gas flue,

• 1 x Exhaust gas flue clamp,

• 2 x Exhaust gas flue brackets 60mm, 80mm,

• 1 x Exhaust gas flue end terminal bracket 100mm,

• 1 x Literature pack (install/operating instructions, warranty cards, service leaflet, questionnaire)

• 2 x Ducting reducer 90-65.

Fast heat up and fully automatic output modulation for enhanced user comfort. Quiet night-time operation. Even and well maintained heat distribution.


Please reach out to a fitter prior to purchase, for confirmation your vehicle will support the weight of the unit and for assurance this product is appropriate for your vehicle. If you don't already have the experience or tools required for the installation, we recommend you ask a fitter to do it for you. For more information on how to use this product please refer to the in-box user guide. 

More Information
Country of Manufacture United Kingdom
EAN/UPC DoesNotApply
Shipping To Mainland UK Only Yes
Width (CM - Packed) 16.5
Height (CM - Packed) 17.5
Depth (CM - Packed) 46.9
Manufacturer Whale
Special Order Yes
OEM Part Number SET-SL3-511/A
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