What Is A Wood Stove?

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I like tight boxes.
Like this?
images
:D
 
I think you can apply some of that to your metal boxes. Some are going to be more efficient that others. Some stoves have baffles that burn more of the wood gas, instead of letting it go up the flue.

If you think of fireplace chimneys as a bunch of rocks or bricks with a hole at each end, you will end up with some that back up into the house, and some that draw efficiently. Same with your wood stove.

The other part of stove design should be how efficiently it radiates the heat into the living area. In theory, you could build one so insulated that little of the heat is dissipated (like an incinerator or a modern oven), or one with fancy ornaments that radiate heat, or tubes that convect heat around the room.

Most concise statement I've seen: a stove should provide "3 Ts"- time, temperature and turbulence for fuel & air.

The temperature part is very important for complete combustion. Thus the insulated fireboxes on the better stoves; some even have fused vermiculite (Rais). Gases leaving there can then dissipate heat. So they work best with the two separate processes above.
 
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