Chapter 9 — INSTALLATION OF SPECIFIC APPLIANCES

California Mechanical Code (Title 24, Part 4) · 2019 edition · updated 2026-09-10 · California

Italicized text is a California amendment to the model code, as printed in the official publication.

(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			DSA			OSHPD						BSCC	DPH	AGR	DWR	CEC	CA	SL	SLC
Adopting Agency	BSC	BSC- CG	SFM	1	2	1-AC	AC	SS	SS/CC	1	1R	2	3	4	5	5	5	5	5	5	5	5	5
~~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/Section~~
~~902.2~~										~~X ~~	~~X ~~	X		~~X ~~	X
~~911.0~~																	X
~~911.1~~										~~X ~~	~~X ~~	X		~~X ~~	X
~~911.2.2~~				†	†
~~912.1~~				†	†
912.2~~~~(1)				~~X ~~	X
~~916.2.1~~				~~X ~~	X
~~916.2.1.1~~				~~X ~~	X
~~930.0~~				†	†
~~930.1~~				†	†

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.

2019 CALIFORNIA MECHANICAL CODE 179

180 2019 CALIFORNIA MECHANICAL CODE

CHAPTER 9

INSTALLATION OF SPECIFIC APPLIANCES

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903.0 Air-Conditioning Appliances.903.1 Electric Air Conditioners.¶

Electric air conditioning systems designed for permanent installation shall comply with UL 1995 or UL 60335-2-40.

908.0 Clothes Dryers.908.1 Electric Clothes Dryers. Commercial electric¶

clothes dryers shall comply with UL 1240 and installed in accordance with the manufacturer’s installation instructions. Residential and coin-operated electric clothes dryers shall comply with UL 2158 and installed in accordance with the manufacturer’s installation instructions.

909.0 Conversion Burners.909.1 General.¶

Installation of conversion burners shall comply with CSA Z21.8. [NFPA 54:10.5]

910.0 Burner Assemblies.910.1 Oil Burners. Oil burners shall comply with UL 296 and¶

installed in accordance with the manufacturer’s installation instructions.

911.0 Decorative Appliances for Installation in Vented¶

Fireplaces.911.1 Prohibited Installations. Decorative appliances for installation in vented fireplaces shall not be installed in bathrooms or bedrooms unless the appliance is listed and the bedroom or bathroom has the required volume in accordance with Section 701.4. [NFPA 54:10.6.1] [OSHPD 1, 1R, 2, 4 & 5] A vented decorative appliance shall not be located in any hospi- tal, skilled nursing facility, intermediate care facility, or cor- rectional treatment center.

913.0 Factory-Built Fireplaces and Fireplace Stoves.913.1 Factory-Built Fireplaces.¶

Factory-built fireplaces shall comply with UL 127 and installed in accordance with the manufacturer’s installation instructions.

913.1.1 Gasketed Fireplace Doors. A gasketed fireplace door shall not be installed on a factory-built fireplace, except where the fireplace system has been tested in accordance with UL 127.

914.0 Non-Recirculating Direct Gas-Fired Industrial¶

Air Heaters.914.1 Application. Direct gas-fired industrial air heaters of the non-recirculating type shall be listed in accordance with CSA Z83.4. [NFPA 54:10.8.1]

915.0 Recirculating Direct Gas-Fired Industrial Air¶

Heaters.915.1 Application. Direct gas-fired industrial air heaters of the recirculating type shall be listed in accordance with CSA Z83.18. [NFPA 54:10.9.1]

916.0 Room Heaters.916.1 Electric Room Heaters. Electric room heaters shall¶

comply with UL 2021.

917.0 Unit Heaters.917.1 Support. Suspended-type unit heaters shall be safely¶

and adequately supported, with due consideration given to their weight and vibration characteristics. Hangers and brackets shall be of noncombustible material. [NFPA 54:10.25.1]

919.0 Food Service Appliances, Counter Appliances.919.1 Vertical Clearance.¶

A vertical distance of not less than 48 inches (1219 mm) shall be provided between the top of food service hot plates and griddles and combustible material. [NFPA 54:10.13.1]

923.0 Outdoor Cooking Appliances.923.1 Listed Units. Listed outdoor cooking appliances¶

shall be installed in accordance with their listing and the manufacturer’s installation instructions.

922.0 Open-Top Broiler Units.922.1 Listed Units. Listed open-top broiler units shall be¶

installed in accordance with the manufacturer’s installation instructions. [NFPA 54:10.18.1]

925.0 Incinerators and Crematories.¶

Incinerators.925.1 Field Constructed Commercial-Industrial Field constructed commercial-industrial incinerators shall be constructed and installed in accordance with NFPA 82.

928.0 Refrigerators.¶

929.0 Gas-Fired Toilets.929.1 Clearance. A listed gas-fired toilet shall be installed¶

in accordance with its listing and the manufacturer’s installation instructions, provided that the clearance shall be such to afford ready accessibility for use, cleanout, and necessary servicing.

930.0 Appliances for Installation in Manufactured¶

Housing. 930.1 General. [Not adopted by HCD][Not adopted by HCD] Appliances installed in manufactured housing after the initial sale shall be listed for installation in manufactured housing, or approved, and shall be installed in accordance with the requirements of this code and the manufacturer’s installation instructions. Appliances installed in the living space of manufactured housing shall be in accordance with the requirements of Section 701.0. [NFPA 54:10.29]

934.0 Refrigeration Appliances.¶

Factory-built commercial refrigerators and freezers shall 934.1 Self-Contained Refrigerators and Freezers. comply with UL 471 and installed in accordance with the manufacturer’s installation instructions.

936.0 Air Filter Appliances.936.1 Electrostatic Air Cleaners.¶

Electrostatic air cleaners shall comply with UL 867 and installed in accordance with the manufacturer’s installation instructions. High-efficiency particulate air filter units for use in industrial 936.2 High-Efficiency Particulate Air Filter Units. and laboratory exhaust and ventilation systems shall be installed in accordance with the manufacturer’s installation instructions.