Imagine being stuck in the woods without haying any idea how to make fire out of stone. Or, camping with your friends and eating stale food. You know, you shouldn’t be doing that to yourself. So, why not make your own portable mass heater? You won’t only be helping yourself, you’d get to help others, too!
By watching this video, you’d get to know what you need to make a portable rocket mass heater, and what you should do to make this project! It’s surely going to be a lot of work—but it will be a lot of fun, too!
source: paul wheaton
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