double barrel inside barrel woodstove
30 gallon barrel inside a 50 gallon barrel. Air circulates around 30 gallon with squirrel cage fan located on bottom. Two outlets on top to hook up to air ducts. Works great!!! Way better than single barrel, or even barrel on top of barrel. Needed welding skills required to build. Thanks
Thanks for this - I'm a little unsure of how this is supposed to work.
- Does the fuel go in the central barrel?
- How is the interior barrel supported?
- You mention a fan - does this supply combustion air to the fire or force air to circulate through the gap between the two layers?
I've heard of designs that use two barrels but then fill the space with a layer of sand. The smaller burn chamber gives a more controlled fire and the thick layer of sand provides some thermal mass which regulates the heat and insulates the fire box (important for a good clean burn).
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