The Walltherm® is the first ever stove to combine the characteristics of a traditional stove with the technical attributes and efficiency of a reverse combustion log gasification boiler.
The stove has a very economical and ecological way to burn the wood because of the gasification process. This means it uses less wood than most other stoves but provides even more power. It achieves very low emissions (only 24mg) and an unparalleled efficiency of 93%.
Through its unique double windows, the Walltherm® gives you an extraordinary sight of two flames. In the upper combustion chamber you can admire a cosy wood fire while the lower combustion chamber shows a spectacular gasification flame burning in reverse.
The reverse flame is not only beautiful to see, but it´s also very hot (over 800°C). The extremely hot exhaust gases exit the stove through the internal heat exchanger which is designed to absorb the highest amount of heat possible.
The temperature of the outgoing exhaust gases on top of the stove is only about 130°C - 170°C depending on the chimney draft.
In total, the 14,9kW of the stove can be used to heat a normal house of up to 150m² including the domestic hot water.
With the radiant heat of about 4,5kW, the Walltherm® supplies a room of up to 50m².
Because of the high power output of the stove, we recommend connecting a storage tank with 1000 liters or more.
Power: 14,9 kW
How the heat is divided: 70% to the water, 30% radiant heat
Efficiency: 93 %
Fine particles: 24 mg/Nm³
Combustion air connection from bottom: ø125 mm
Combustion air connection from behind: ø125 mm
Operating pressure: 2 bar
Chimney draft 12 Pa - 15 Pa / max. 20 Pa
Weight: ~ 275 kg
Water contenc: 16 lt
Combustion chamber size: 55 lt
Chimney connection: ø150 mm
Exhaust stream: 38,5 kg/h
Exhaus gas temperature: ~ 130-170 °C
Exhaus gas temperature (lighting phase): ca. 250 - 300 °C
Fuel: dry wood (under 20% humidity)
Lenght: up to 35cm
Warranty: 5 years on the body (wear parts excluded), 2 years on fittings and electrical components