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Whale Heat Air Underfloor Space Heater 6kw Gas & Electric

£1049.99 (inc VAT) 1599.99

BRAND : Whale

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Product Description

Whale Heat Air 6GTE 6kW Underfloor Space Heater (Gas + Electric) is the highest output model in the range, combining gas and electric heating for powerful performance. Suited to large vans, full-time setups, and year-round use in colder climates, this heater provides fast, even warmth across your entire vehicle.

Despite the high output, the 6GTE runs quietly and efficiently, adjusting heat levels automatically to match the temperature you’ve set. Underfloor fitting gives you more living space and a cleaner interior layout.

6GTE is the most powerful model in the Heat Air line, delivering a 6kW combined output for fast and effective heating. Built for larger motorhomes, family-sized campervans or full-time vanlifers, it’s designed to handle higher demand in colder weather and bigger spaces. The underfloor mounting clears interior room for more storage and flexible layouts, while the heating performance remains strong and consistent.

The dual-fuel setup offers maximum flexibility—use electric when plugged in on a site, or gas when travelling off-grid. It delivers fast warm-up, quiet night-time running, and well-regulated airflow. Modulating controls help avoid temperature swings by automatically adjusting power output.

This heater comes with a full set of installation accessories, making it a practical choice for new builds or retrofits. Whether you’re upgrading an older system or fitting out a large touring van, the 6GTE gives you enough power to heat the entire living area efficiently, day or night.

Best for

Full-time vanlifers
Families or shared vehicles
Large motorhomes or winter touring
Off-grid and campsite users wanting dual-fuel flexibility

Whale Heat Air Underfloor Space Heater 6kw Gas & Electric Features

Output: 6kW (gas + electric)
Fully automatic heat modulation
Installed underfloor to maximise internal space
Ultra-quiet in operation
Works on gas, electric, or both
Smart control panel with preset and manual options

What’s included

1 x Gas and electric 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 and bracket (60mm)
1 x Exhaust gas flue
1 x Exhaust clamp
3 x Exhaust brackets (40mm, 60mm, 80mm)
1 x Exhaust terminal bracket (100mm)
1 x Z-bracket and isolation mounts
1 x Heater screw kit
Full documentation pack (install guide, warranty, support info)

Specifications

Brand Whale
Voltage 10.1V - 15.9V DC
Height 175mm
Width 165 mm
Weight 8.7 kg
Length 559 mm
Fuel Butane/Propane 30mbar - CAT I3B/P(30)
Gas Consumption 131, 342, 436 g/h
Max Air Flow @ 0.5mbar: 220 m3/h

SAFETY NOTICE:

All products and parts must be installed by engineers who hold a valid certificate of competence. The installation must comply with the manufacturers instructions and local regulations. We cannot be held responsible if these instructions are not followed.

Please note we are a camping, caravan and motorhome company and NO gas product that we sell is suitable for mains (domestic) gas supply.

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Instructions

Whale Heat Air Underfloor Space Heater Data Sheet

Whale Heat Air Underfloor Space Heater Data Sheet 2

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Returning an Item

If you’ve changed your mind about keeping your purchase, please return it in its original condition with proof of purchase and we’ll exchange or refund it. Unless faulty, this should be within 30 days of receiving your order. By original condition, we’d expect this to mean that you’ve kept packaging and labels, and that the item is undamaged and unused.

For further information of how to return your item, please visit the "Returning an Unwanted/Faulty/Damaged Item" section on our Help Page.