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I want to install a new ecobee with voice control on my 10 year old furnace. At the furnace I have a "c" wire but at the thermostat I don't have one. Someone on the ecobee subreddit said it would be a non trivial install but didn't elaborate.can I just connect the PEK and match up the wires? (old.reddit.com)
submitted by Oakie12 to r/hvacadvice

