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I have a home with furnace and HRV. The thermostat and unit to control humidity are separate units beside each other on the wall.
My thermostat is battery powered, No G wire. No C wire. Rh, Rc (jumper to Rh) W, Y.
Is it still possible for me to install the Ecobee3 without professional help?
I'm contacting Ecobee support in parallel but waiting 24 hours is a long time. Thought I would try this site for a second opinion.