A couple of years ago I built a small solar-thermal direct-air heater for our tool shed. I have recently written a short how-to article that is available on the web.
http://mountainelectric.ca/hotbox/Bu...tAirHeater.pdf
The differential thermostat has been refined greatly
http://mountainelectric.ca/Diff_TStat_manual.pdf
Hope this is of some use.
http://mountainelectric.ca/hotbox/Bu...tAirHeater.pdf
The differential thermostat has been refined greatly
http://mountainelectric.ca/Diff_TStat_manual.pdf
Hope this is of some use.
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