§ Chapter 14 IRC 2021
Heating and Cooling Equipment and Appliances
9 entries from Chapter 14 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 9 entries.
Sorted by section number. Click any row for the full entry — answer, requirements, edition diff, related sections.
Section
Title
Question
M1401.1
HVAC Filters Must Be Accessible for Routine Replacement
M1401.1
Does code require the furnace or air handler filter to be easy to access?
Does code require the furnace or air handler filter to be easy to access?
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M1401.3
Heating and Cooling Equipment Must Be Sized From Building Loads
M1401.3
Is Manual J required when replacing an air conditioner or furnace?
Is Manual J required when replacing an air conditioner or furnace?
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M1402.1
Central Furnaces Must Meet IRC and Manufacturer Installation Rules
M1402.1
What code rules apply to installing a central furnace?
What code rules apply to installing a central furnace?
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M1402.1
Furnace Clearance to Combustibles Depends on the Listing
M1402.1
How close can a furnace be to wood framing or drywall?
How close can a furnace be to wood framing or drywall?
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M1402.2
Return Air Must Be Located and Sized So the System Can Operate Safely
M1402.2
Can a furnace pull return air from a garage, closet, or mechanical room?
Can a furnace pull return air from a garage, closet, or mechanical room?
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M1403.1
Heat Pumps Need Approved Location, Support, and Service Clearance
M1403.1
How much clearance does a heat pump need around the outdoor unit?
How much clearance does a heat pump need around the outdoor unit?
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M1403.1
Mini-Split Indoor Heads Need Manufacturer Clearance and Service Access
M1403.1
Can a mini split be installed one inch below the ceiling?
Can a mini split be installed one inch below the ceiling?
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M1404.1
Central Air-Conditioning Equipment Must Be Supported and Accessible
M1404.1
Can an AC condenser sit directly on dirt or an uneven pad?
Can an AC condenser sit directly on dirt or an uneven pad?
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M1411.3
Air-Conditioning Condensate Must Drain to an Approved Location
M1411.3
Where can AC condensate drain under the 2021 IRC?
Where can AC condensate drain under the 2021 IRC?
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