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Thanks to both of you for the responses. If I change the system type to 7 is there anything else I should change as well? FYI, I do not have a heat pump if that matters, just a furnace.

beenthere,...

Hi, OP here. I finally got the HVAC company to come out and install a new stat. They put in a Honeywell Pro 6000 model TH6220D this time.

I believe this stat will control my system correctly but...

BaldLoonie I'm a little confused as to what you are suggesting. I believe you are on the side of getting a stat that can handle the 2 stage? If so that seems like the preferred route to take. I just...

Thanks for the responses.

Any suggestions on what T-stat I should ask them to replace it with that can give me the full capabilities of the system?

Hi,
I recently had a new unit installed in the upstairs of my house that included a Trane 3 Ton XR15 and XV80 80K BTU Variable speed furnace.
The thermostat that was installed is a Honeywell...