Heating with wood is often considered a natural and economical alternative to electricity or fossil fuels. In short, less wood input, less pollution, and way more energy output. Not only does this clean exhaust protect you from creosote fires (and all your neighborhood from smoke), it also helps the stove more efficiently extract every last scrap of fuel value from the wood. The rocket fire chamber design creates a long, roaring flame path, hot and clean, so that there is almost no smoke or creosote. Now if you've become a wood heat skeptic due to bad-neighbor experiences, you might ask, "What about the smoke and creosote?" If you ran a chimney pipe sideways from a wood burning stove, you'd have problems with the stove smoking into the room, and with creosote buildup in the stovepipe. The result is that that exhaust has much further to travel, and all of that heat is put out into the room or the thermal mass, before a very minimal amount of smoke finally exits the pipe outside. Rather than have this exhaust pipe go immediately up and out of a structure, one of the first ways a rocket mass heater turns up the heat efficiency is by winding that exhaust pipe through as much of the surrounding structure as possible, often within a thermal mass, like a nice cob bench. Typically these stoves take advantage of the heat that is concentrated, but often wasted, in the exhaust pipe of a typical wood burning stove. These stoves use a cheap (often free) energy source, wood, for heat and cooking, with a design that enables drastically less input and much more efficient heat output. What's so great about a rocket mass heater anyway?įor those that are unfamiliar with rocket mass heaters, here's what all of the hullabaloo is about. The Rocket Mass Heater Builder's Guide shows you from start to finish how to build a rocket mass heater, the most cost effective and efficient wood burning stove design, using the DIY-friendly rocket mass heater design that Ernie and Erica have perfected. The experts on all things rocket mass heaters, Ernie and Erica Wisner, are back with their latest book on rocket mass heaters.
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