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  1. #1
    Join Date
    Nov 2019
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    Winterizing 96% condensate furnace

    Hi, Just installed a 40K condensate furnace. This is a remodel and it's going to be a while before it is insulated. They want to be able to shut down the furnace for periods of time with the temperatures falling below freezing inside where the furnace is. I sloped the furnace toward the internal trap. I am thinking that they can use a shop vac and suck out the water from the trap. I am wondering if they need to worry about the secondary heat exchanger?? If so, I have heard that pouring the antifreeze used for motor homes can be poured through one of the unused ports of the exchanger until it fills the trap, leaving antifreeze in the exchanger. Any experience with this would be appreciated.

  2. #2
    Join Date
    Apr 2003
    Location
    Maple Grove, MN
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    The shop vac sounds like a good plan. It should be able to suck out enough of the water out so that it wouldn't be a problem.
    If at First You Don't Succeed, Skydiving Is Not for You.

  3. #3
    Join Date
    Jul 2018
    Location
    Wisconsin
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    The installation manual will show where to pour the anti freeze. Fill till it flows from the trap. Propylene Glycol/Antifreeze should be used. RV antifreeze/Swimming pool antifreeze.

    Sent from my SM-G960U using Tapatalk

  4. #4
    Join Date
    Aug 2002
    Location
    Southold, NY
    Posts
    26,124
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    Once the insulation is in do you plan on using it?

    DO NOT run that furnace during any type of construction!

  5. #5
    Join Date
    Nov 2019
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    Thread Starter
    Quote Originally Posted by Spitz View Post
    The installation manual will show where to pour the anti freeze. Fill till it flows from the trap. Propylene Glycol/Antifreeze should be used. RV antifreeze/Swimming pool antifreeze.

    Sent from my SM-G960U using Tapatalk
    I read the manual and it does not have any instruction on winterizing. Have you done this procedure with the antifreeze?

  6. #6
    Join Date
    Nov 2019
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    Thread Starter
    I read the manual and it does not have any instruction on winterizing. Have you done this procedure with the antifreeze?

  7. #7
    Join Date
    Jul 2018
    Location
    Wisconsin
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    Carrier spells it out in there manual. I have personally never done it before.

    Sent from my SM-G960U using Tapatalk

  8. #8
    Join Date
    Jul 2018
    Location
    Wisconsin
    Posts
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    .

    Sent from my SM-G960U using Tapatalk

  9. #9
    Join Date
    Aug 2002
    Location
    Southold, NY
    Posts
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    Quote Originally Posted by pecmsg View Post
    Once the insulation is in do you plan on using it?

    DO NOT run that furnace during any type of construction!
    Can you answer this?

  10. #10
    Join Date
    Nov 2019
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    Thread Starter
    It will probably be used during electrical and plumbing and sheetrock finishing.

  11. #11
    Join Date
    Aug 2002
    Location
    Southold, NY
    Posts
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    Quote Originally Posted by Jerimiah View Post
    It will probably be used during electrical and plumbing and sheetrock finishing.
    Besides voiding the warranty it will kill that unit.

    That is not a construction heater, it can’t handle the dust.

    Rent a construction hearer(s)

  12. #12
    Join Date
    Apr 2004
    Location
    MN
    Posts
    2,049
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    Quote Originally Posted by pecmsg View Post
    Besides voiding the warranty it will kill that unit.

    That is not a construction heater, it can’t handle the dust.

    Rent a construction hearer(s)
    A Veteran is a person, who at some point in their life, wrote a blank check payable to the United States of America for payment up to and including their life.
    Gene Castagnetti-Director of the National Memorial Cemetery of the Pacific in Hawaii

  13. #13
    Join Date
    Jun 2012
    Location
    Northern NV
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    When I was doing new construction, I made the contractor read and sign a disclaimer that the warranty was void if used during construction....

    Then offered one of my recycled electric furnaces to use for construction heat. Kept about 5 or 6 of them in rotation for this purpose.

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