Can you make the ecobee work without a common wire or common tap on the motherboard? Reznor hanging Heater/furnace. AC has a air handler with a roof top ac like central air. They're currently on separate thermostats We don't have a we can make it all work on one thermostat but we don't have a common wire. This is an a small dive bar we own. Previous homeowner cheap down on a lot of stuff and we're trying to upgrade as much we can.
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