5thWheelForums.com - View Single Post - Two thermostats one for AC, one furnace, has it been done?

bstark · 11-26-2007, 02:39 PM

Bigboy2u: Yep, the cavity you're talking about is indeed open to basement with the third item being a Carbon Monoxide detector. From your posts the concern you seem to be conveying without stating it outright is the point of having two items in conflict, ie: A/C set for cooling down to 72F and furnace perhaps set for 72F and both running while you're out shopping. Could you adapt a 3 position switch to handle both items as thermostat and furnace are both low voltage. Perhaps, at worse case scenario, a couple of small relays would need to be employed in concert with 3 way switch so that you have power to only one thermostat at a time?

11-26-2007, 02:39 PM	#8
bstark Senior Member Join Date: May 2005 Location: Fergus, Ontario, CANADA Posts: 1,000	Bigboy2u: Yep, the cavity you're talking about is indeed open to basement with the third item being a Carbon Monoxide detector. From your posts the concern you seem to be conveying without stating it outright is the point of having two items in conflict, ie: A/C set for cooling down to 72F and furnace perhaps set for 72F and both running while you're out shopping. Could you adapt a 3 position switch to handle both items as thermostat and furnace are both low voltage. Perhaps, at worse case scenario, a couple of small relays would need to be employed in concert with 3 way switch so that you have power to only one thermostat at a time? __________________ Sandra, Bruce