I am looking for a gas heat and air conditioning system and live in Pennsylvania. My house is 55 yrs old. I posted earlier about a lennox system and I received useful info. In my continuing saga, I had another contractor come through. I was wondering about anyone's thoughts about Lennox's reliabilty compared with Bryant. The lennox system included a furnace (G60UHV-60C-110) and coil (HS-26-36). The Bryant quote includes furnace (315AAV036070) and coil(CK 3BXA036017/CE3AXA036). Both are two stage, variable speed heat with 13-14 seer units.
My latest quote includes an Aeroseal injection system to seal the ductwork. Does anyone know anythning about this stuff? The quote including the Aeroseal is lower than the Lennox quote. Any suggestions?
I also heard that going with a 90% gas unit could be detrimental to a house chimney as condensate can accumulate during the winter with the operation of a gas water heater only. Evidently, the flue temp drops way down only using the water heater, which makes sense.