jaspector
§ Chapter 17 IRC 2018

Combustion Air

8 entries from Chapter 17 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 an Engineer Design a Different Combustion Air System? (IRC 2018)
M1701.1
Can an engineer design a different combustion air system?
→
Can Exhaust Fans Cause Backdrafting of a Water Heater? (IRC 2018)
M1701.1
Can exhaust fans cause backdrafting of a water heater?
→
What Is Combustion Air and Why Does My Furnace or Water Heater Need It? (IRC 2018)
M1701.1
What is combustion air and why does my furnace or water heater need it?
→
How Do I Know If a Mechanical Room Is Confined or Unconfined? (IRC 2018)
M1702.1
How do I know if a mechanical room is confined or unconfined?
→
Can Combustion Air Come From Inside the House? (IRC 2018)
M1703.2
Can combustion air come from inside the house?
→
Where Should High and Low Combustion Air Openings Be Located? (IRC 2018)
M1703.2
Where should high and low combustion air openings be located?
→
Can a Combustion Air Duct Run Through an Attic or Crawl Space? (IRC 2018)
M1703.3
Can a combustion air duct run through an attic or crawl space?
→
How Big Do Outside Combustion Air Openings Need to Be? (IRC 2018)
M1703.3
How big do outside combustion air openings need to be?
→
§ 02   Chapter navigation