fugsco

fugsco t1_j9v06lz wrote

Is it possible for you to pull new wire? A few nicer aspects of having a modern thermostat (assuming a somewhat modern heat unit) will not be available with only two wires, even if you can get it to work. My wire run was pretty easy so this is what I did. I love to run the fan alone, but that was not possible until I replaced the old wires.

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