Few years ago contractor installed Carrier Infinity 96 Natural gas furnace in our house. Furnace is 2 stage, variable speed. But I still use single stage thermostat for that. Based on all threads I read here, 2 stage thermostat would be very nice.I do not care that much for cooling, as I have just single stage Air Conditioning and I use it very seldom during summer.
Now I can get Infinity thermostat installed by contractor for about $. I was not able to find this thermostat for sale so I could install it myself. I also can buy Honeywell Vision Pro 8000 thermostat that supports 2 stage for about $ on ebay and install it myself.
Is the 4.5 time difference worth for Infinity thermostat? From reading here I understand that added benefit for Infinity would be fact that I can see stating preassure in my ducts. But that is preatty much it? Humidity is not a problem for me.
Please help me choose.