Cob Style Rocket Mass Heater DVD, HD Streaming

If a person was going to get just one Rocket Mass Heater DVD, this would be the one. A cob style rocket mass heater is "the old reliable". We have two projects to demonstrate this technique - one in a log home and one in a tipi. We put one in a tipi as part of an experiment to test how warm a person can be with a rocket mass heater and zero insulation. We interview the couple that stayed in the tipi for the first winter, with a strong focus on how comfortable they were when it was 26 degrees below zero.