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  1. #1
    Wade Johnson's Avatar
    Wade Johnson Guest

    Default Propane water heater

    Can a Rheem water heater manufactured in 2009. Model # 42V50-36 PF sit directly on a garage floor or does it have to be 18 inches off the floor?

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  2. #2
    James Duffin's Avatar
    James Duffin Guest

    Default Re: Propane water heater

    All I could find in the installation manual was the following quote:

    "If local codes require the use of a stand kit
    to raise the water heater 18 above the
    floor, please contact the store where the
    water heater was purchased, or any water
    heater distributor. These kits must comply
    with local codes."

    Based on this I would say yes to your question but you would need to check you local codes.

  3. #3
    Join Date
    Feb 2009
    Southern Vancouver Island

    Default Re: Propane water heater

    Quote Originally Posted by fritzkelly View Post
    As far as I can tell, the "sealed" units draw combustion air a few inches above the floor rather than 1 or 2 inches. I don't see where there would be any difference, still needs to be 18 inches up (or maybe 16 inches).
    I think he is asking if that is a "flame-guard" unit, and I don't have an answer either. More info, please.

    John Kogel, RHI, BC HI Lic #47455

  4. #4
    Join Date
    May 2010
    No. San Diego Co., CA

    Default Re: Propane water heater

    Being that Propane is heavier than natural gas, more difficult to disperse, likely to 'pool' in the vicinity of any leak and therefore more combustable, an 18" min. lift for the WH is required, I believe.

  5. #5
    Join Date
    Mar 2007
    Ormond Beach, Florida

    Default Re: Propane water heater

    Scroll down to 'Tall LP Gas' on the first page and you will find 42V50-36PF, then at the bottom of that page you will find:

    Exclusive Combustion Shut-off System
    Should a spill incident occur, the system shuts off the gas supply and the air supply preventing a sustained vapor burn in the combustion chamber.

    Flame Arrestor Plate
    A specially designed flame arrestor prevents ignition of vapors outside the combustion chamber.

    Maintenance Free
    Superior air filtration prevents the flame arrestor from becoming clogged by lint, dust and oil.

    This is the closest I can find for an installation instruction:

    Last edited by Jerry Peck; 08-24-2010 at 04:12 PM.
    Jerry Peck, Construction / Litigation Consultant
    Construction Litigation Consultants, LLC ( )


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