I have a heat only system with two wires leading to the thermostat - red and white - and am wanting to add a wireless thermostat. The new thermostat however requires a "C" wire. Can I add a C wire?

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    Browse thermostat-c-wire to see several variations of answers to how to accomplish this. – gregmac Oct 27 '14 at 19:03

Yes, you can definitely add a C wire. How you do it, and how difficult it is completely depends on your equipment.

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