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Thread: Replacing gas furnace, how big?
03-04-2009, 05:37 PM #27
I'd just use a Honeywell IAQ thermostat, it only needs 3 wires to the thermostat, and can control your 2 stage furnace, A/C, and if you add a humidifier, or certain other devices later, it can control them as well.Contractor locator map
How many times must one fix something before it is fixed?
03-04-2009, 05:49 PM #28Regular Guest
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- Mar 2009
03-04-2009, 05:52 PM #29
I've never seen that add-a-wire thing before.