In the second video, they build a "portable" rocket mass heater using a "shippable" rocket stove made from cast high temp refractory cement. I was wondering if this is available to purchase and how much it would cost and an estimate on the shipping costs as well
If you try to please everybody, your progress is limited by the noisiest fool. And this tiny ad:
a humble home and a large garden will erase stress from the rat race
