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Old 03-14-2015, 06:51 AM   #1
garandman OP
Joined: Feb 2007
Location: Dorchester, MA / Goshen, NH
Oddometer: 6,163
DIY Solar firewood kiln?

There are many plans available for wood kilns to dry fine hardwood planks. This has to be done at a carefully controlled rate to avoid checking (splitting) or warping, and dried to a minimal moisture content. As a result they are more elaborate than necessary and don't necessarily lend themselves to loading and unloading split firewood.

But firewood is a lot easier: if it splits it just dries faster! So the lumber kilns are overkill. But just throwing a sheet of clear plastic over it doesn't seem to have much benefit. We have an excellent location for one.

It appears that a well-designed solar kiln could season firewood in as little as one month during the summer. I can throw something together but if anyone has something that works well, post away!
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Old 03-14-2015, 10:14 AM   #2
Joined: May 2002
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Wood drys with the release of the water in it's vessels. Plastic traps moisture and is highly counterproductive. I've never heard of a solar firewood dryer, beyond laying it in the sun, but good airflow will always be key.
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Old 03-14-2015, 01:55 PM   #3
Manuel Garcia O'Kely
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Joined: Apr 2004
Location: Central Colorado Rockies
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Saw a few interesting ideas on google - but most of them seemed to include a structure or a shipping container - seemed mostly suitable for commercial firewood providers?

Any reason you are in a hurry?

Looks like the serious ones used those big metal containers used to move plastic chemical carboys with forklifts - those can be moved in and out of a building/structure pretty easily.

I just stack my wood in the open and don't worry about it - I get stuff that's pretty dry in the summer and it gets several months of good stack drying before winter comes.

This year I'm pondering those round stack the Norskis like only because they seem like they might solve some issues for me - I plan to stack a couple of years worth this summer just to have a couple of the round houses standing for a year - then I'll go into full rotation - right now my wood pile is a PITA to rotate.
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