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  1. #1
    Join Date
    Sep 2009
    Location
    barrie,ontario
    Posts
    51

    york 2-stage question

    as of late,we have been installing a lot of york 2 stage furnaces.these are new home installs as well as retrofit installs.am looking on some input as to the best way to operate the 2 stage.at work we use the timer on the board to set 1st stage to run for 10 minutes.is it better to use a 2 stage thermostat?2 stage thermostat is a tough sell to a volume home builder, but to a retrofit application it should be an easy sell.gotta install a 2 stage for my sister next weekend so i can experiment with hers to see what is better as well.

    thanks

  2. #2
    Join Date
    Nov 2012
    Location
    PA
    Posts
    47
    Best is to offer all the pros and cons and let the customer decide. In my house I would use 2 stage stat.

  3. #3
    Join Date
    Feb 2009
    Location
    Tallahassee, FL
    Posts
    5,821
    Combustion pros on this site found low stage to be less efficient fuel wise.

    It can help even out temps through envelope with increased run times though.

    Vent system may be a factor also.

  4. #4
    Join Date
    Sep 2009
    Location
    barrie,ontario
    Posts
    51
    so basically the 2 stage is a comfort thing.always thought that a 2 stage would rarely go to 2nd stage unless temp was extremely cold.

  5. #5
    Join Date
    Feb 2009
    Location
    Tallahassee, FL
    Posts
    5,821
    Yea I was thinking that low conserved fuel also but have been told otherwise by some reliable sources.


  6. #6
    Join Date
    Sep 2009
    Location
    barrie,ontario
    Posts
    51
    just another damn gimmick.man the york rep was real convincing as per his job.

  7. #7
    Join Date
    Feb 2009
    Location
    Tallahassee, FL
    Posts
    5,821
    A nice small furnace that will properly stage up and down would be ideal.

  8. #8
    Join Date
    Nov 2012
    Location
    PA
    Posts
    47
    Longer run times equals less cycling and fewer brake downs, more even temps, and the difference in efficiency would be very minor.

  9. #9
    Join Date
    Feb 2009
    Location
    Tallahassee, FL
    Posts
    5,821
    I agree with that statement joeblo.

    Very minor. You just wouldn't want to say it will save a boatload when in actuality it doesn't.

  10. #10
    Join Date
    Mar 2011
    Location
    Birmingham, AL
    Posts
    22
    Some two-stage stats use a timer anyway, so using the timer on the board should be comparable.

  11. #11
    Join Date
    Jan 2004
    Location
    Lancaster PA
    Posts
    66,749
    Size the furnace to the homes heat loss, don't over size it. Use a high quality 2 stage stat such as the Honeywell IAQ which will go to second stage when it determines that the homes heat loss is at 90% of first stage capacity. Fuel savings are from when the customer sets their stat temp lower because of the improved comfort at a lower set temp.
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    How many times must one fix something before it is fixed?

  12. #12
    Join Date
    Sep 2009
    Location
    barrie,ontario
    Posts
    51
    thanks for all the replies guys.your input is a great help.

  13. #13
    Join Date
    Sep 2009
    Location
    barrie,ontario
    Posts
    51
    so i finally found time to install the new 2 stage york 60k for my sister through the holidays.i set the timer to run at low fire for 15 minutes before it goes to high fire.they absolutely love the new furnace.nice and quiet,plus that longer low fire burn gives a nice even heat.its been fairly cold here and they have only noticed the furnace going to 2nd stage once.thought i would update the thread so it may help others.

    cheers
    if it wont go,get a bigger hammer.

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