Im trying to get my head around insulating the burn tunnel..do i just mix the perlite in with the cob mix or do i wrap a layer of perlite around the burn tunnel, rhen wrap the cob around that? Or neither?
It looks like it's time for me to write you a reality check! Or maybe a tiny ad!
A rocket mass heater heats your home with one tenth the wood of a conventional wood stove
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