- May 9, 2012
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bill, what do you think about covering the inside of the heater with black ebony wood? Very thin layers are not so expensive and the uncle of my wife can glue them on the wood with a press. He is.... dang, whats the english word LOL... anyway, he is master of the same job Bart has!
One solar heater used beer cans painted black.
One end of each can removed , the other end cut into an X I believe and the X slightly expanded to allow a slow air flow , and then glued to the open end of the can it was connected to.
In a drier there would need to be an airflow (gravity should suffice) to allow moisture to escape , rather than a sealed unit to trap optimum potential heat.
Maybe a small hole each end and periodically rotating the frame to have one end higher than the other to keep consistent drying.(?)
The less efficient unit will just need to run smaller loads of what is being dried.
Mushrooms I've dried in the house on a screen with no heat other than what is in the house in spring. It's the lack of humidity drying them.
I do like to use the sun on a nice day too , but have had to pick dried mushrooms out of the lawn when a wind came up. L.o.l.
Beans (whole fresh green beans) can be strung through one end on strong thread and hung to dry. "Leather breeches beans" I think was the term when such was more common. I used to dry small hot peppers that way.