copper tubing wall thickness in propane application

Discussion in 'Electrical Forum discussion & Blog' started by Darzo Olesko, Nov 17, 2009.

  1. Darzo Olesko

    Darzo Olesko New Member

    Messages:
    1
    Location:
    B.C. Canada
    What type of 1/2 inch copper tubing-K or L-is acceptable for use in propane lines? ..K is the thickest, at 0.049, but will L at 0.040 be ok? I'm running a 50 foot line between my tank and a generator, should I buy K or L, or does it even matter? ( No building codes where the cabin is, so whatever is safe + appropriate..)
  2. Billy_Bob

    Billy_Bob In the Trades

    Messages:
    422
    For that I would find a local building inspector in a nearby city (where permits are required) and ask what would be required there. Type of line, depth of burial, and any other requirements. Then do what they say.

    Around my area, the building inspectors have certain hours where you can go and ask them questions.

    My thinking for doing this is that there are different areas, different weather conditions, different ground conditions, etc. And the "locals" would know about any problems typical to your specific area.

    Maybe the ground is very rocky in a certain area and these rocks can puncture tubing, so they would require sand or a certain tubing?

    Or maybe the ground freezes in that area and they might require a certain tubing or burial depth?

    Or somewhere like Arizona it gets to be so hot things will melt! A problem local to that area.

    Who knows? Anyway if you ask a local, you will get the best advice for your specific area.
  3. hj

    hj Moderator & Master Plumber Staff Member

    Messages:
    26,270
    Location:
    Cave Creek, Arizona
    tubing

    Normally we use "L". Do not use ACR refrigeration tubing, usually specified as 5/8" rather than 1/2", because that is too thin for safety. It is usually labeled 5/8" rather than 1/2" even though it is the same size.
    Last edited: Nov 18, 2009
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