Solar on a Shoestring: Homemade Solar Thermostat

Solar researcher Dennis Burkholder devised a solar control system that blows heat from his solar heater into his house when he needs it and shuts off when he doesn't.

Schematic for the collector thermostat control system. 
062 solar on a shoestring - four panels
PHOTO 1: This wiring junction connects the fan to the thermostat. PHOTO 2: The upper thermostat is connected to the solar collector. The lower thermostat is the house's main thermostat. PHOTO 3: This blower fan moves air from the collector. PHOTO 4: This thermometer measures the collector's temperature output.

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