Single Wall Boiler Vent - Combustibles Clearance

Discussion in 'UPC Plumbing Code Questions' started by molo, Oct 27, 2011.

  1. molo

    molo Member

    Sep 23, 2006
    Cold New York
    I am building a basement window cover. There is a boiler vented with 3" Stainless Steel vent pipe through the basement window opening. I would like to incorporate a 2" rigid foam Dow board into the new cover.

    Does anyone know the required clearance between the vent pipe and the foam board?

    Thank You,
  2. hj

    hj Moderator & Master Plumber Staff Member

    Aug 31, 2004
    Cave Creek, Arizona
    6" is the standard for single wall vent pipe.
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