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What’s so great about a Zaug Mass Heater?

Zaug Altaire

Next Generation of Wood Stove

Rocket mass heaters are the new solution to the next generation of wood stove heating. On the cutting edge of rocket mass heater technology comes the new Altaire by Zaug Stoves.

Unique Air Flow

Zaug Altaire
Zaug Altaire in Metallic Blue

Zaug Stoves Co. has developed a new type of wood burning stove that completely revolutionizes our ideas about heating with wood. This new technology changes the common belief that hot air only travels upwards. In the Zaug stove, hot air travels down. With so much force, in fact, the hot air exiting the Zaug can travel horizontally for 25′ before needing to go up and outside. This means that the hot air within the exhaust duct can be kept inside the house, to be used as a secondary heat source, radiating more heat inside your house.

Thermal Mass

This unique air flow can be utilized in other ways. Most people enclose the exhaust duct with a brick, rock or clay material to capture and absorb the heat from the duct. This brick or clay structure is called a thermal mass. A thermal mass is a large object mass that retains and gives off heat, which stabilizes the temperature in the room from extreme fluctuations. Once a thermal mass is heated from the Zaug stove, it can give off heat for up to 24 hours, keeping your room warm and comfortable long after the stove has gone out.


Zaug Altaire
New Zaug Altaire

Combine this use of waste heat, with the unique air flow direction, and you start to see why a Zaug mass heater is becoming a popular choice for wood stove heating.

Zaug Stoves
Main office:
1 (360) 894-3600