I had a 2 stage furnace put in, now the low power stage is pumping air, but it is not heated(confirmed with thermometer in duct) Another thread on this board confirmed that that means something is wrong with the installation.
I have a suspicion that my thermostat does not support 2 stage, although my wife, who was home when it was installed, says installer did look at thermostat and said it would work.
So question is this-- I have "Lux 1500" thermostat, I picked it up at costco maybe 5 years ago when I wanted to go to a timer thermostat.
I just want to know if that particular thermostat works with 2 stage, so when the guy comes back he can't BS me.