short circuit thermostat
plan was to use six to eight panels in series, increase to twelve later. wire directly to 30 gallon 120AC water heater. Home depot had a sale on water heaters. The thermostat will turn off when temperature hits the correct setting. all sound good except. one problem I forgot, DC arching. Normal existing thermostats on water heaters react slowly. How to stop the arching in the thermostat contacts?? on opening the circuit. when temperature has been reached. When we used DC motors we used a system called double back contacts, but that is possible when using a high speed drop relay, How to use that principal on a water heater, any suggestions would be appreciated. as it is now the thermostat burns up in a few cycles.