I have been reading this forum for weeks and have found a lot of invaluable information. But I have another question.
With a 1-stage HP & 2-stage fossil fuel furnace, which thermostats have been proven to use HP for first heat, low furnace for second heat and high furnace for maximum heat?
I am purchasing Trane, so Visionpro/XL800 is preferred. But it is reported not to provide the functions needed. Also read one homeowner report that White-Rodgers 900 did not provide functions after system was installed.
So what do you think? I have to order in 2 days (Monday) to get Trane rebates.
Thanks guys. Keep up the outstanding work!