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a lil' taste

Plans Description

An 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. Over 4 years, it used less than half a cord of salvaged wood per year (local arbor trimmings and building debris). The residents 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.

buying the plans

If you think "I don't wanna sign up for some stupid email thing. Especially if it is an email that comes every day. I would rather just buy the plans." No problem. Here's a link.

6 Inch Rocket Mass Heater Plans - Annex Variation

the real deal

Here is a rocket mass heater built according to the 6 inch annex variation design plans. rocket mass heater complete