§ Chapter 12 IRC 2021
Mechanical Administration
8 entries from Chapter 12 of IRC 2021, organized by section number. Each entry covers what the code requires, why it exists, what inspectors look for, and common mistakes.
§ 01 Sections
All 8 entries.
Sorted by section number. Click any row for the full entry — answer, requirements, edition diff, related sections.
Section
Title
Question
M1201.1
A Furnace Replacement Usually Needs Mechanical Permit Review
M1201.1
Do I need a permit to replace a furnace in my house?
Do I need a permit to replace a furnace in my house?
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M1201.1
DIY Mechanical Work Still Needs Code Approval
M1201.1
Can a homeowner do their own HVAC work without inspection?
Can a homeowner do their own HVAC work without inspection?
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M1201.1
Hidden Mechanical Equipment Needs Real Access, Not Just a Hole
M1201.1
Can HVAC equipment be hidden behind drywall if there is an access panel?
Can HVAC equipment be hidden behind drywall if there is an access panel?
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M1201.1
Mechanical Corrections Can Be Required Before Final Approval
M1201.1
Why did the inspector fail my new HVAC system at final inspection?
Why did the inspector fail my new HVAC system at final inspection?
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M1201.1
Mechanical Equipment Labels Must Stay Readable for Inspection
M1201.1
Does HVAC equipment need a visible model and rating label?
Does HVAC equipment need a visible model and rating label?
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M1201.1
Mechanical Work Should Be Inspected Before It Is Covered
M1201.1
Can drywall cover HVAC work before the mechanical inspection?
Can drywall cover HVAC work before the mechanical inspection?
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M1202.1
Existing HVAC Systems Must Remain Safe During Remodeling
M1202.1
Do I have to bring my old HVAC system up to code during a remodel?
Do I have to bring my old HVAC system up to code during a remodel?
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M1202.1
Unpermitted HVAC Work Can Become a Sale and Inspection Issue
M1202.1
What happens if HVAC work was done without a permit before I bought the house?
What happens if HVAC work was done without a permit before I bought the house?
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