I am asking for donations of empty coffee cans, sand, and glass jars (like jam jars, or small pickle jars) because I am building off-grid heat units for the people stuck living in tents this winter.
i'm making the wick out of felted carbon, so they last forever
i'm making the wick out of felted carbon, so they last forever
🔥🔥🔥DIY Copper And Sand Heater | Cheap And Easy Heat
Heating a room or a greenhouse can become expensive quickly. This sand and copper powered heater can heat for days using a vegetable shortening double or qua...
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Post pics please