OP, you will need to call these firms before you order your unit and actually get a commitment to do the work at the stated cost and you are setting your self up for possible problems if the existing thermostat or wiring is not compatible with the new unit, and finally where do you go for warranty work? Hope this works out for you, but I would get the whole system locally, with a warranty.
__________________
Pennsylvania, for 60+ years, most recently, Allentown, now TV. 
|