With your old furnace, you buy 110,000 btus, but get only 88,000 to heat your house.
Originally posted by vckbdc
I'll make sure I talk to the guy about the size. I have an old Lennox G8 in there now, and I checked the specs on it and it says it has a 110,000 btu/hour input capacity, and an 88,000 bonnett capacity. Does this mean it is an 88,000 btu furnace? If so, are the furnaces now just better at what they do and that is why a lower btu rating is needed? I was told by a Lennox dealer that the fans are stronger in the newer units than my old unit, is that the reason? These are probably obvious things to those of you in the business, but I am trying to rid myself of at least some ignorance. Thanks.