I am very much a nubee; I am on system overload so any advice is appreciated.
We need to change our 22 year old gas furnace and air conditioner. We have had three estimates ranging from 42.00 to 7,000.00. All happen to use Trane (one actually is American Standard but I understand it's the same)
Unsure of make of our existing units but if I remember right, I think Frazier-Johnson (or something like that) All three estimate the AC to be between 6.5 and 7.5 SEER and the furnace is 60K BTU. Unsure of tonnage but am guessing well under 2 ton. When the furnace was working at its best, it still was not forcing much air to the furthest three rooms.
#1 uses Am St and says I need to increase the BTU to 80K and that an 11 SEER unit is all we need (3 ton)
#2 says 80 BTU also, recommends 2 stage and a 11.5 SEER unit for AC (3 ton)
#3 says 60 BTU and the return air ducting needs to be sealed a bit. 13 SEER AC with the new gas but if I wished, 12 SEER with current gas but recommend the 13.
Difference of 900.00 between the 12 and 13 SEER AC's
All three seeemed knowledgeable and are reputable. The latter two seemed more professional however #1 is self employed and I am not worried because he does not drive a shinny new truck or pressed uniforms. He appears to have our needs at interest
Sorry for rambling on, as you can tell we are very confused. Any input is appreciated.