Lab Tests & Regulations
Recent testing of the Envirotech produced the cleanest burning (lowest emissions) of any masonry heater yet tested in North America by an EPA certified laboratory. This unit was constructed by Timely Construction and tested at Myren labs in Colville, Washington.
Approval Letter for the State of Washington
Approval letter for the state of Colorado
Here’s an illustration of the airflow in the interior of an Envirotech.
These photos show the construction and testing of an Envirotech at Myren Labs in Colville, WA in September of 2007.