miki1043
Jun 21, 2010, 07:48 PM
My old thermostat has 8 wires and the honeywell rth110b only has 5 wires..
wmproop
Jun 21, 2010, 08:13 PM
The honeywell rth110b looks like its for 1H/1C meaning one heat/one cool system, if you are using 8 wires this probably means you have a heatpump and furnace for backup heat, so you have the wrong tstat if this is correct