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how to figure BTUs

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  • how to figure BTUs

    if i only have psi i am getting off a line can i figure how many btus. example commercial gas meter is at 25 psi can i figure max BTUs it can give me

  • #2
    Re: how to figure BTUs

    Which pipe size?
    Which pressure

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    • #3
      Re: how to figure BTUs

      I doubt that gas meter puts out 25 psi but if it does you probably have no business going near it.

      The meter should have a maximum BTU rating stamped on it.

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      • #4
        Re: how to figure BTUs

        the commercial gas meters i've dealt with even when "high pressure" were either 2 psi or 5 psi depending on the the application. if it's 25 psi i'm going to agree with Plumberscrack, and say to stay away from it.
        No, it's not rocket science, it's plumbing and unlike rocket science it requires a license.

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        • #5
          Re: how to figure BTUs

          ok so i need to take a pic but back on subject say it was 5 psi 1 1/2 pipe is there a way to figure btu's

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          • #6
            Re: how to figure BTUs

            Well let's take a guess here.

            A medium pressure gas line is pressurized at 2.5psi.
            So my chart shows an 1.5" line at 2.5 psi at 50' can supply 5,642 Cubic Feet per Hour which multiplied by 1,100 would give you

            6,206,200 BTU's

            So double that for you 5# pressure and it looks like you got...

            About 12,000,000.

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            • #7
              Re: how to figure BTUs

              look at the meter . 1/2 psi . how big building?

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              • #8
                Re: how to figure BTUs

                sounds like you should get your gas supplier involved and they can probably give you the info your looking for,

                meters in our area are the property of the company and they usually frown up on any one, but them messing with them, If the service will not meet the needs of the building/s they serve, in our area the company will come out and change out the necessary equipment to meet that need.
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