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Author Topic: solar kiln temp  (Read 446 times)

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Offline ccb

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solar kiln temp
« on: March 21, 2019, 03:48:55 PM »
Can a solar kiln get too hot? Outside temp currently 47 F. Temp in top of building/collector is currently 154 F where the fan isn't running, and is 120 F where the fan is running and blowing air down below to the wood. The solar collector is 36 ft long. This newly operational. Can't imagine what the temp will be in the heat of summer in Wisconsin. Thoughts?

 

Offline henry-sawer

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Re: solar kiln temp
« Reply #1 on: March 22, 2019, 02:40:52 PM »
Hi, mine did that too, all that will change when you put a bunk of wood in there.

Offline GeneWengert-WoodDoc

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Re: solar kiln temp
« Reply #2 on: March 23, 2019, 07:05:28 AM »
The heat at the top can easily reach 200 F and can melt or damage wires, fans, plastic, wood components, roof covering materials, etc. when the air is stagnant.  You need vents near the top that are open when the unit is not in use, or run the fans or put a cover over the roof.
Gene - Author of articles in Sawmill & Woodlot and books: Drying Hardwood Lumber; VA Tech Solar Kiln; Sawing Edging & Trimming Hardwood Lumber. And more

Online YellowHammer

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Re: solar kiln temp
« Reply #3 on: March 23, 2019, 07:46:07 AM »
I melted the roof on mine, when we had a couple day power outage and I forgot to open the doors.  
HobbyHardwoodAlabama.com


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