How to Build a Rocket Stove Mass Water Heater
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With deforestation still moving ahead apace, dealing with the global demand for fuel wood is critical. Life without heat and hot water would be very unpleasant. Life without trees is impossible…. And to satiate our hunger for heat, richly biodiverse forests are being replaced with ‘sterile’ monoculture tree plantations which give rise to tree diseases and other ecological vulnerabilities. The pressure for fuel wood is on in most parts of the world. Removing tree cover from the upper watershed is particularly damaging, but persistent demand can cause too many to shift the goalposts on how much should be allowed to remain….
Along with passive solar building designs, a rocket stove hot water heater can dramatically reduce the amount of wood used to heat a given amount of space, or a given amount of water — down to as little as a fifth as much as a regular fire. In this video Geoff Lawton takes you through the design of the rocket stove mass hot water heater that very efficiently provides reliable daily showers for the many students we receive at PRI Zaytuna Farm. This particular stove is specifically for heating water, but other designs can produce thermal mass space heaters as well.