Ch. 5 Water Heaters — 2025 California Plumbing Code
California Plumbing Code (Title 24, Part 5) · 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 Plumbing Code (Title 24, Part 5) Chapter 5 · 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 | X | X | X | ||||||||||||||||
| Adopt Entire Chapter as amended (amended sections listed below) | X | X | X | X | ||||||||||||||||||||
| Adopt only those sections that are listed below | X | |||||||||||||||||||||||
| Chapter/ |
||||||||||||||||||||||||
| 501.2 | X | |||||||||||||||||||||||
| 507.2 | X | X | X | X |
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 5
WATER HEATERS
501.0 General.¶
502.0 Permits.¶
503.0 Inspection.¶
504.0 Water Heater Requirements.¶
505.0 Oil-Burning and Other Water Heaters.¶
506.0 Air for Combustion and Ventilation.¶
507.0 Appliance and Equipment Installation Requirements.¶
507.0 Appliance and Equipment Installation Require- ments.
508.0 Appliances on Roofs, in Attics or Under-Floor Spaces.¶
Spaces.
509.0 Venting of Appliances.¶
510.0 Sizing of Category I Venting Systems.¶
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