Search the building code.

• M1308.2.1

  Piping Through Bored Holes or Notches

  • Pipe in bored holes or notches within 1-1/4 in of the finish face gets a shield plate covering pipe and member and extending 2 in past each side (2 in above bottom plates and below top plates).

  International Residential Code, 2024 · Chapter 13, General Mechanical System RequirementsRead the full text (opens UpCodes in a new tab)

• M2105

  Ground-Source Heat-Pump System Loop Piping

  International Residential Code, 2024 · Chapter 21, Hydronic PipingRead the full text (opens UpCodes in a new tab)

• M1201

  General

  International Residential Code, 2024 · Chapter 12, Mechanical AdministrationRead the full text (opens UpCodes in a new tab)

• G2407.11

  Combustion Air Ducts

  • Combustion air ducts are galvanized steel (or stud/joist spaces with one fireblock removed), serve one enclosure, keep upper and lower ducts separate, aren't screened in attics, don't slope down to the source, and intakes sit 12 in above grade.

  International Residential Code, 2024 · Chapter 24, Fuel GasRead the full text (opens UpCodes in a new tab)

• M1504.3

  Exhaust Openings

  • Exhaust outlets sit 3 ft from property lines; 3 ft from gravity intakes, operable windows and doors (or 1 ft above them); and 10 ft from mechanical intakes (or 3 ft above, or a listed combination fitting).

  International Residential Code, 2024 · Chapter 15, Exhaust SystemsRead the full text (opens UpCodes in a new tab)

• G2407.7.2

  Outdoor Opening Location

  • Combined method outdoor openings are located per G2407.6.

  International Residential Code, 2024 · Chapter 24, Fuel GasRead the full text (opens UpCodes in a new tab)

• G2446

  Vented Room Heaters

  International Residential Code, 2024 · Chapter 24, Fuel GasRead the full text (opens UpCodes in a new tab)

• G2425

  General

  International Residential Code, 2024 · Chapter 24, Fuel GasRead the full text (opens UpCodes in a new tab)

Searches all 4,276 IRC 2024 sections, 5,532 IBC 2024 sections and defined terms (Chapters 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33 so far) and each city's local rules as they are added. Section numbers and titles from the International Residential Code and International Building Code, 2024 editions, copyrighted by the International Code Council; the IRC's electrical chapters (34 to 43) follow NFPA 70, the National Electrical Code. Requirements are summarized in our words (IRC Chapters 3 to 43, IBC Chapters 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33); read the full text at the link on each result. Local values come from each city's published documents.