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  1. #1
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    Default dryer gas flex connector too small?

    No photo. Typical gas dryer has what looks like a 1/2 inch flex connector coming from a 3/4 hard pipe. I didn't even know they made a flex connector that small. Any help?

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  2. #2
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    Default Re: dryer gas flex connector too small?

    Ok, no doubt I've got my pipe sizes messed up. Not my forte, don't you know.
    The hard pipe is your standard 1/2" black gas supply and there is a reducer to get it down to the small flex connector, which must be 3/8", I suppose.
    Anyway, like I said, I've never seen a gas connector that small. I don't run dryers. I just look at the electric and gas and vent connections. Looked like your standard run-of-the-mill dryer.
    Anyone have any thoughts on this?

    "There is no exception to the rule that every rule has an exception." -James Thurber, writer and cartoonist (1894-1961)
    www.ArnoldHomeInspections.com

  3. #3
    Dennis Krouse's Avatar
    Dennis Krouse Guest

    Default Re: dryer gas flex connector too small?

    The typical gas dryer needs 22,000 btu's. A 3/8" flex connector will supply enough gas.


  4. #4
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    Default Re: dryer gas flex connector too small?

    http://www.dormont.com/dmc/uploadedF...connectors.pdf

    FYI, to assess flex connector sizing, you need to know the ID and the length, then refer to a chart such as the link above.

    John, we usually see those really skinny connectors only on gas log sets and usually no more than 18'.
    HTH,
    Bob

    Keep the fire in the fireplace.

  5. #5
    Dennis Krouse's Avatar
    Dennis Krouse Guest

    Default Re: dryer gas flex connector too small?

    The longest flex dormont makes is 6 foot. Even on natural gas it still delivers 23,100 btu's.

    Last edited by Dennis Krouse; 08-23-2009 at 05:46 PM.

  6. #6
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    Default Re: dryer gas flex connector too small?

    Quote Originally Posted by Bob Harper View Post
    http://www.dormont.com/dmc/uploadedF...connectors.pdf

    FYI, to assess flex connector sizing, you need to know the ID and the length, then refer to a chart such as the link above.

    John, we usually see those really skinny connectors only on gas log sets and usually no more than 18'.
    HTH,
    Bob
    Quote Originally Posted by Dennis Krouse View Post
    The longest flex dormont makes is 6 foot. Even on natural gas it still delivers 23,100 btu's.
    Also on that page as a note to that table:

    "Note: When using 0.2 water column pressure drop, capacity can be determined by multiplying the values above by 0.632 (for both natural and propane gas)."

    3/8" x 72" = 14,599 at 0.2 pressure drop
    3/8" x 60" = 15,736 at 0.2 pressure drop
    3/8" x 48" = 17,885 at 0.2 pressure drop
    3/8" x 36" = 21,108 at 0.2 pressure drop
    3/8" x 30" = 23,004 at 0.2 pressure drop

    Meaning that the connector would need to be no longer than 30" if 3/8" in size.

    1/2" x 72" = 31,031 at 0.2 pressure drop

    Meaning that the connector could be 72" if 1/2" in size.

    Jerry Peck, Construction / Litigation Consultant
    Construction Litigation Consultants, LLC ( www.ConstructionLitigationConsultants.com )
    www.AskCodeMan.com

  7. #7
    Dennis Krouse's Avatar
    Dennis Krouse Guest

    Default Re: dryer gas flex connector too small?

    Your right Jerry, the proper thing would to have gotten more info about the installation. I forgot about the note on the .2"wc drop and in worse case senario could have an effect. Thanks for the input, good call!


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