“I only have 2 wires will this smart eco thermastat connect to my furnace?”
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It would be helpful to know what your thermostat is controlling. Please submit pictures. Only two wires for thermostat would have a 24v in and one output. Issue is that youd be without a c, but theres a harness or adapation for that. After that, you'd be left choosing between a fan or heat command. This could be rigged to call for fan only when heat runs and have fan and heat low voltage wired together. Or, you could have radiant heat which is common in the western US.
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