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fresh air intake

  1. J

    Calculating Outdoor Air in Dwelling Unit

    We are under the 2018 IMC. In a multi-family development the plans examiner has asked for 0.35 ACH based on Table 403.3.1.1. The MEP engineer is arguing that since the airflow required is listed under "living areas" he only has to calculate the ACH for the floor areas that are "habitable"...
    • jc_ks
    • Thread
    • ach fresh air intake multifamily residential
    • Replies: 17
    • Forum: Mechanical Codes
  2. D

    Fresh air intake for hot water heater

    Putting a bathroom in basement. Need to either run new fan vent line to outside which would be a pain, or there are 2 fresh air intake lines to hot water heater closet, way easier. WouId it be against code to just tie into the fresh air intake?
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