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Using 1 thermostat for 2 heaters on separate breakers.. switching fromHow water heater thermostats works: Wiring connections for room thermostats.
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Room thermostat wiring diagrams for HVAC systems
How water heater thermostats works:
Using 1 Thermostat For 2 Heaters On Separate Breakers.. Switching From
How water heater thermostats works: