Gas line sizing advice

Discussion in 'Plumbing Forum, Professional & DIY Advice' started by rocco, Oct 13, 2005.

  1. rocco

    rocco New Member

    Messages:
    2
    I am doing an addition. I gave gone through a gas line sizing exercise and determined based on distances and cu ft/hr I need 1 1/4". The gas company is relocating the meter for the addition but I have been told the line coming out of the meter will be 3/4"

    Do I still go into the building with 1 1/4" ( and branch of to the various appliances with 3/4)
    Is going up from 3/4 to 1 1/4 to avoid to much pressure loss because of the distance?
    Please advice -thanks
  2. hj

    hj Moderator & Master Plumber Staff Member

    Messages:
    27,272
    Location:
    Cave Creek, Arizona
    gas

    You run the 1 1/4" to the meter and reduce at its connection. Yes, it is because of pressure drops.
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