What Kind Of Cheap Thermostat Could I Use To Control A Passive Solar Water Heater For My Hot Tub?
I want to build a batch heater or a passive coil system on a painted black corrugated metal backing. But I want to be able to stop the flow when the water gets to a set temp. It would be great to be able to just put in a car radiator thermostat but it would allow the water to get too hot.
Hello flagnsnarf:
You may need to install a low-voltage transformer with a thermostat and a solenoid valve. An automotive thermostat has too high a temperature setting.