Learn to Build a Cob Oven!
LEARN TO BUILD A EARTHEN WOOD FIRED OVEN!!
Rocket Mass Heater
Rocket mass heater - picture courtesy of Ernie and Erica Wisner
Texas Natural Builders is looking for a home in the Houston area to build a rocket mass heater demo model.
Rocket mass heaters (R.M.H.) use direct heat to thermal mass to keep a home nice and cozy for a very low operating cost! sometimes even for free depending on the availability of wood for fuel.
A rocket mass heater is an innovative and efficient space heating system developed from the rocket stove, a type of hyper-efficient wood-burning stove, named in the 70's, but dating back millennia in concept, and the masonry heater. Wood is gravity fed into a 'J shaped' combustion chamber, from where the hot gases enter a heavily insulated metal or fire-brick vertical secondary combustion chamber, the exhaust from which then passes along horizontal metal ducting embedded within a massive cob thermal store. The thermal store is large enough to retain heat for many hours and typically forms part of the structure of the building.