You can get these plans HERE through our dailyish freebies!
Here's some more about these plans
These plans are six pages including photos; scale drawings of the floor plan, elevation, and sections; a cutaway view; and builder's notes on the construction process. They show you how to build a rocket mass heater
with L-shaped heated bench, using the rocket mass heater
clean-burning and super-efficient wood
burning technology. The '6' refers to diameter of heat-exchange ducting.
This design provided the sole heat for an older Portland
cottage/apartment of about 800 sf. Erica and Ernie used less than half a cord of salvaged wood per year (local
arbor trimmings and building debris) to heat their home for four years in a row. They ran the fire 2 to 4 hours in ordinary cool, rainy weather, and up to 6-8 hours when the weather dropped below 20 F, for constant 24-hour warmth. In summer, the earthen bench was not heated, and instead helped keep the house cooler than it had been in previous years with no need for fans.
If you don't like emails (we get that, though we're bummed!), you can buy it right HERE!