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Direct vent

mattyc
mattyc Member Posts: 44
in THE MAIN WALL
Installing a condensing tankless water heater and I am direct venting out the side of the house... I know code for pipe terminations is that vent and air intake pipe must be minimum 3’ from an inside corner. Does this apply to a chimney as well? I was planning on terminating about 2ft from a chimney that bumps off the house approximately 18” or so but will have to rethink my plan if this will cause an issue.

Comments

  • Jamie Hall
    Jamie Hall Member Posts: 24,876
    That's an inside corner, and the code applies.
    Br. Jamie, osb
    Building superintendent/caretaker, 7200 sq. ft. historic house museum with dependencies in New England
    mattyc
  • EBEBRATT-Ed
    EBEBRATT-Ed Member Posts: 16,495
    agree with @Jamie Hall . I think most would consider that a inside corner
  • HVACNUT
    HVACNUT Member Posts: 6,338
    edited January 2020
    If you know what make and model heater you're getting, download the I&O manual and it will tell you exactly what their parameters are for combustion air and venting.

    Code accordance will be highlighted. But always check codes for your area as well.

    Some manuals even have cool bombs or dead guy icons to emphasize the dangerous stuff.

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