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  1. #14
    Join Date
    Aug 2012
    Posts
    7
    Quote Originally Posted by motoguy128 View Post
    I'm suprised that you need a 110k BTU furnace in a location where you need 3.5 tons of cooling. You'd need to be well north for that match.

    +1 on 95%+

    I'm partial to Carrier Equipment, but you need to have hte Performance series quoted. I also think you should alwasy price, good better and best. I'd alos price out a York Affinity modulating furnace and a Carrier Infinity both with 2 stage AC.
    Thanks. Will look into Affinity models

  2. #15
    Join Date
    Oct 2010
    Location
    Anderson, South Carolina, United States
    Posts
    7,783
    York is the major brand that we sell, so i'm probably biased. The TM9V is a really good furnace and I love the LX series of AC and heat pumps, much more than the York affinity. It is cheaper and I believe it's a better system. You can match the 14.5 Seer outdoor unit with variable speed motor and txv to achieve almost 16 Seer. I think with the 3 ton it will match to 16 Seer and the others are 15.6+. We have installed many like this and have had no problems... knock on wood

  3. #16
    Join Date
    Jan 2004
    Location
    PA
    Posts
    68,803
    2300 sq ft 1992 home shouldn't need a big furnace. Above average number of windows, maybe a 80,000 95plus% furnace.

    On the coldest days, did your current 114,000 80% have to run 24/7 to keep your house warm? or did it cycle on and off.
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    How many times must one fix something before it is fixed?

  4. #17
    Join Date
    Aug 2012
    Posts
    7
    Quote Originally Posted by beenthere View Post
    2300 sq ft 1992 home shouldn't need a big furnace. Above average number of windows, maybe a 80,000 95plus% furnace.

    On the coldest days, did your current 114,000 80% have to run 24/7 to keep your house warm? or did it cycle on and off.
    Current furnace cycles on and off with what seems to be a normal frequency. Never had an issue with lack of heat or inability to maintain temp.

  5. #18
    Join Date
    Jan 2004
    Location
    PA
    Posts
    68,803
    Quote Originally Posted by arthur59 View Post
    Current furnace cycles on and off with what seems to be a normal frequency. Never had an issue with lack of heat or inability to maintain temp.
    Your current furnace has a rated output of 91,200 BTUs. So you don't need a 100,000 BTU 97% furnace. You probably do need a proper load calc done to find out what size you really need.
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  6. #19
    Join Date
    Jan 2009
    Location
    Keokuk, IA
    Posts
    5,520
    Quote Originally Posted by arthur59 View Post
    Current furnace cycles on and off with what seems to be a normal frequency. Never had an issue with lack of heat or inability to maintain temp.
    What is "normal"?

    Were your Jan. gas bills close to $400 in a colder winter (last year doesn't count)? IF not, 114k is oversized.

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