Ch. 9 Installation of Specific Appliances — 2025 California Mechanical Code
California Mechanical Code (Title 24, Part 4) · 2025 edition · updated 2026-10-19 · California
CBSC: official editions, supplements and errata
Italicized text is a California amendment to the model code, as printed in the official publication.
Cite as: 2025 California Mechanical Code (Title 24, Part 4) Chapter 9 · Effective January 1, 2026 · Official source: Building Standards Commission
(Matrix Adoption Tables are non-regulatory, intended only as an aid to the code user. See Chapter 1 for state agency authority and building applications.)
| Adopting Agency | BSC | BSC-CG | SFM | HCD 1 | HCD 2 | HCD 1-AC | DSA AC | DSA SS | DSA SS/CC | OSHPD 1 | OSHPD 1R | OSHPD 2 | OSHPD 3 | OSHPD 4 | OSHPD 5 | OSHPD 6 | BSCC | DPH | AGR | DWR | CEC | CA | SL | SLC |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Adopt Entire Chapter | X | X | X | X | X | |||||||||||||||||||
| Adopt Entire Chapter as amended (amended sections listed below) | X | X | X | X | X | X | X | |||||||||||||||||
| Adopt only those sections that are listed below | X | |||||||||||||||||||||||
| Chapter/ |
||||||||||||||||||||||||
| 902.2 | X | X | X | X | X | |||||||||||||||||||
| 911.0 | X | |||||||||||||||||||||||
| 911.2 | X | X | X | X | X | |||||||||||||||||||
| 912.3(1) | X | X | ||||||||||||||||||||||
| 915.3.1 | X | X | ||||||||||||||||||||||
| 915.3.1.1 | X | X | ||||||||||||||||||||||
| 929.0 | † | † | ||||||||||||||||||||||
| 929.1 | † | † |
This state agency does not adopt sections identified with the following symbol: The Office of the State Fire Marshal’s adoption of this chapter or individual sections is applicable to structures regulated by other state agencies pursuant to Section 1.11.0.
CHAPTER 9
INSTALLATION OF SPECIFIC APPLIANCES
901.0 General.¶
902.0 General.¶
903.0 Air-Conditioning Appliances.¶
904.0 Central Heating Boilers and Furnaces.¶
905.0 Duct Furnaces.¶
906.0 Floor Furnaces.¶
907.0 Wall Furnaces.¶
908.0 Clothes Dryers.¶
909.0 Conversion Burners.¶
910.0 Burner Assemblies.¶
911.0 Decorative Appliances for Installation in Vented Fireplaces.¶
Vented Fireplaces.
912.0 Gas Fireplaces, Vented.¶
913.0 Factory-Built Fireplaces and Fireplace Stoves.¶
914.0 Non-Recirculating Direct Gas-Fired Industrial Air Heaters.¶
Air Heaters.
915.0 Room Heaters.¶
916.0 Unit Heaters.¶
917.0 Food Service Appliance, Floor-Mounted.¶
918.0 Food Service Appliances, Counter Appliances.¶
919.0 Household Cooking Appliances.¶
920.0 Cooking Appliance Listings.¶
921.0 Open-Top Broiler Units.¶
922.0 Outdoor Cooking Appliances.¶
923.0 Illuminating Appliances.¶
924.0 Incinerators and Crematories.¶
925.0 Infrared Heaters.¶
926.0 Pool Heaters.¶
927.0 Refrigerators.¶
928.0 Gas-Fired Toilets.¶
929.0 Appliances for Installation in Manufactured Housing.¶
Housing. [Not adopted by HCD]
930.0 Small Ceramic Kilns.¶
931.0 Outdoor Open Flame Decorative Appliances.¶
932.0 Evaporative Cooling Systems.¶
933.0 Refrigeration Appliances.¶
934.0 Ductless Mini-Split Systems Installation.¶
935.0 Air Filter Appliances.¶
936.0 Gaseous Hydrogen Systems.¶
937.0 Compressed Natural Gas (CNG) Vehicular Fuel Systems.¶
Systems.
938.0 Dehumidifiers.¶
939.0 Sauna Heaters.¶
Explained in plain English
Guides that cite this section.
- Sauna heaters, gaseous hydrogen and CNG fueling systems — applicable standards and installation
- Conversion burners and burner assemblies — conversion and installation rules
- Unit coolers, ductless mini‑split systems and dehumidifiers — listings and installation basics
- Outdoor cooking appliances — listing and installation
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