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§ Chapter 13 IRC 2018

General Mechanical System Requirements

8 entries from Chapter 13 of IRC 2018, organized by section number. Each entry covers what the code requires, why it exists, what inspectors look for, and common mistakes.

ED IRC 2018 ED IRC 2021 ED IRC 2024
§ 01   Sections

All 8 entries.

Sorted by section number. Click any row for the full entry — answer, requirements, edition diff, related sections.

Can the Furnace Label Be Covered by a Closet Wall or Access Panel? (IRC 2018)
M1302.1
Can the furnace label be covered by a closet wall or access panel?
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How Much Space Is Required in Front of a Furnace in a Closet? (IRC 2018)
M1305.1.2
How much space is required in front of a furnace in a closet?
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What Access Is Required for a Furnace Installed in an Attic? (IRC 2018)
M1305.1.3
What access is required for a furnace installed in an attic?
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Can Wood Framing or Storage Touch a Furnace, Flue, or Duct? (IRC 2018)
M1306.1
Can wood framing or storage touch a furnace, flue, or duct?
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Does Code Require HVAC Installers to Follow Manufacturer Instructions? (IRC 2018)
M1307.1
Does code require HVAC installers to follow the manufacturer instructions?
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Can a Natural Gas Furnace Be Connected to Propane? (IRC 2018)
M1307.2
Can a natural gas furnace be connected to propane?
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Does a Furnace or Water Heater in a Garage Need Bollards? (IRC 2018)
M1307.3.1
Does a furnace or water heater in a garage need bollards?
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Can I Install Any Used Furnace or Air Handler If It Works? (IRC 2018)
M1401.1
Can I install any used furnace or air handler if it works?
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§ 02   Chapter navigation