04/26/2014 midnight
Rocket Mass Heater Workshop - Nelson B.C.
...wood to heat a large thermal mass unit. This stored heat is then slowly released for hours, long after the fire has gone out.
RMHs are fairly similar in function to a masonry heater in that they both aim to heat a thermal mass with minimal wood and burn time, yet are adapted more for the DIYers and come in at a much lo...