New thermostat for solar hotwater heater found. This is one rated for 120vac or 169vdc. Connect up 3 or 4 250w solar panels in series to a 120v water heater element and enjoy the hot water. use this thermostat and the existing pop-off safety thermostat in series. Do NOT use the adjustable thermostat that comes with the water heater. https://senasys.com/product/2570f444-34-epoxy-sealed-thermostat/
Senasys
2570F444 3/4" Epoxy Sealed Thermostat - Senasys
The 2570F444 3/4" Epoxy Sealed Thermostat is a unique thermostat switch designed for extended use in extreme environments.
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1August 28, 2026 991 1 10
