Old 2-wire thermostat wiring Submitted by fluxeii t3_11az8t3 on February 24, 2023 at 7:07 PM in DIY 19 comments 43
Toolman6208 t1_j9wdrzp wrote on February 25, 2023 at 1:03 AM Yup, just use R and W on new thermostat but you will need to power thermostat with batteries and configure for heat only, gas furnace option for fan control Permalink 9
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