Ultraflex Group

Diesel heaters for boats

Diesel heaters for boats WALLAS® - Heaters, stoves and ovens

Diesel heaters for boats

Wallas® diesel heaters are a good system, extremely easy to install, to heat boats up to 15 m (50 ft). The sound level equals to the level of whispering in the library, thanks to the laminar burning combustion.

The sound of burning cannot be heard from the exhaust pipe and the boat next to yours can enjoy the silence as well.

The power consumption is the lowest compared to its competitors and enable you to keep your boat warm, even with small battery capacity.

To ensure the highest quality, every single Wallas® product is manually tested before delivery.

Warranty: 3 years.


MODEL 22GB 30GB 50 Spartan Air
Fuel Diesel Diesel Diesel
Power (W) 1000-2500 1000-3200 1400-4500
Operating voltage 12V 12V 12V
Fuel consumption (l/h) 0,1-0,25 0,1-0,33 0,16-0,46
Electricity consumption (Amp) 0,7-1,2 1,0-2,0 0,7-4,5
Heat min-max air flow (m³/h) 51-79 61-103 102-227


WxDxH mm (")

424x140x278 (16.7x5.5x10.9)





Weight kg (lbs) 10 (22) 10 (22) 15 (33.1)

Part No. Model Description
22750W 22GB Diesel heater
22095P 30GB Diesel heater
22751Y 50 Spartan Air Diesel heater