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mechanical code

  1. L

    COMBUSTION AIR CALCULATIONS FOR A WATER HEATER CLOSET

    Hello everybody, I would like to know how to do the calculations for a water heater closet that is located on a interior space. I have a proposed 2' 10'' x 2' 8'' water heater closet and the water heater is a 38,000 btuh and the type is natural gas. I would leave a picture with more details...
  2. jar546

    Ductwork Collapse Into Resort Pool in Aurora Colorado

    I am posting a few links here and a video of the aftermath. Essentially, round, metal ductwork fell from the ceiling onto patrons in and around a pool. Six people were injured, 2 of the critically. It is obviously too early to know what happened and of course the lawsuits will begin shortly...
  3. C

    ORSC 2017 Table M1309.4 has missing footnotes?

    In the Oregon Residential Specialty Code I can't seem to find these footnotes in the table, does anyone know the story here? only footnote a is at the bottom. Page 480 Table M1309.4 https://codes.iccsafe.org/content/document/1018?site_type=public
  4. jar546

    Mechanical Code Question of the Day 1 Aug 2018

    Scenario #1 2015 IMC applies along with all of the 2015 i-Codes: (this is hypothetical but important) An existing commercial building is having an AC unit replaced on the roof and the HVAC contractor pulls a permit. They are swapping out an old unit with a newer, more efficient one. You...
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