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I have two separate R wires on my thermostat. What do I need to know about my ecobee thermostat installation?
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Installing new Amazon smart thermostat from a RWG non-smart Honeywell...I have a C wire but on the HVAC there are already 2 wires (red and blue) in the C connection on the
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heating - Wifi thermostat to replace old mechanical 2-wire 110V Honeywell? - Home Improvement Stack Exchange
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