Lakee911
I&C Engineer (mostly WWTP)
I have an OLD Lennox Furnace from 1956. There is a sticker from insection at that time. It's getting replaced on Thursday. Everyone has looked at it has said 'Boy it's old' but no one can tell me anything about it. There is no model or serial number on it that I can find. Its clean and good shape but it rivals NASA's fuel bill for the space program (well...). It's only 110K BTUs. (Heat calc showed 63K BTUs needed). It is forced air natural gas, but it doesn't force much air. Blower is slow.
The heat exchanger looks like a barrel. A friend of mine has an average model from 1982 that's 60% AFUE which makes me guess this is probably in the 50% range.
Because I just bought the place, I don't know the PO heating habits, but my budget is based on them. Would have been $165/mon, year around.
Any ideas what the AFUE of furnace from this era would be?
Thanks,
Jason
The heat exchanger looks like a barrel. A friend of mine has an average model from 1982 that's 60% AFUE which makes me guess this is probably in the 50% range.
Because I just bought the place, I don't know the PO heating habits, but my budget is based on them. Would have been $165/mon, year around.
Any ideas what the AFUE of furnace from this era would be?
Thanks,
Jason