Wood Burning Gasification Boilers

Combustion is regulated by a
thermostatically controlled draft blower that forces combustion air into the boiler’s ceramic
combustion tunnel. Here, unusually effective combustion
takes place at very high temperatures allowing the Kuenzel gasification boilers
to use very little fuel in comparison to “conventional”boilers.

Modern high-tech with the oldest fuel of mankind wood, makes modern heating with wood today cleaner and nearly as easy as heating with oil or gas. Feel good about heating with wood without becoming a slave to a boiler that needs a mountains of wood to keep you warm.

Wood burning (gasification) boilers provide a convenient, safe and environmentally friendly way to heat your home and domestic hot water with wood.
Kuenzel boilers assure the independence and self-reliance that heating with wood provides, because they use the “magic” of combustion, they give unusually high overall heating efficiency. They use substantially less wood than conventional boilers and wood burning stoves.

Wood gasification boilers burn so clean, they are safer (virtually no risk of a chimney fire) and result in cleaner air for everyone. They also help to substantially reduce greenhouse gas emissions. Wood gasification boilers enable you to increase the warm security of your home in a safe, environmentally responsible way. Everyone wins! Through continues research and innovation for the last 70 years wood gasification boilers for residential central heating has been develop to the highest standards in quality, function and appearance... excellence on all levels. In fact has earned the prestigious ISO 9001 certification, which assures consistently reliable product quality.
Operational reliability, unique firing efficiency, total quality, and concern for the environment, are all factors that have been instrumental in the wood gasification boilers. The real alternative for oil or gas central heating boilers.

Wood fuel CO2 neutral and is on of the oldest known to man
Think global and act locally wood fuel will help the local economy.

Combustion Tunnel.
This is where the magic of “wood gasification” occurs. This is the view you will get when you look into the observation port
on the lower door.
Temperatures of over 1000 degrees are achieved, therefore utilizing all available energy in the wood.

How the Gasification Boiler Works

The combustion system employed in wood gasification boilers solves most of the problems associated with conventional wood boilers and outdoor wood burning stoves.
Here’s why: The wood gasification combustion process in the boiler begins when the small, quiet draft fan turns on in response to the boiler’s heat controls. The draft fan blows fresh air into the top of the firebox and down through the wood and live charcoal bed. This hot air and smoke mixture is forced through a slot in the top of the ceramic combustion chamber. Super-heated secondary air is then injected into these gases. The combination of the wood gas and smoke with the high temperature oxygen results in a super-hot 1800° flame in the ceramic combustion tunnel. The gases stay in this hot, turbulent environment long enough to achieve extremely high combustion efficiency. The resultant heat passes into the vertical heat exchange tubes giving off heat to the boiler water for house heating and domestic hot water demands. The combination of optimum combustion and maximum heat exchange efficiency is what yields the unusually high overall boiler heating efficiencies of 80-90%.

Wood burning gasification and pellet boilers
Product Page

Wood burning (gasification) boilers made in Germany