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Earlier editions: 20222019

Chapter 6 — WATER SUPPLY AND DISTRIBUTION

613.1 The domestic water-heating equipment… — 2025 California Plumbing Code

California Plumbing Code (Title 24, Part 5) · 2025 edition · updated 2026-10-23 · 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) § 613.1 · Effective January 1, 2026 · Official source: Building Standards Commission

613.1 The domestic water-heating equipment and distribu- tion systems shall supply water at the temperature and amounts shown in Table 613.1. Where the system is designed by a mechanical engineer, appropriate diversity factors may be utilized.

TABLE 613.1

[OSHPD 1, 2, 3, 4 & 5] HOT WATER USE

CLINICAL DIETARY1 LAUNDRY2

Liter/Hour/Bed
11.9 7.2 7.6

Gallons/Hour/Bed
3 2 2


Temperature °C
41-49.0 49.03 71.0


Temperature °F
105-120.0 120.03 160.0

1 Rinse water temperature at warewasher or potsinks shall be 180°F (82°C) unless a chemical disinfection is provided.

2 The required temperature of 160°F (71°C) in the laundry is that meas- ure in the washing machine and shall be supplied so that the tempera- ture may be maintained over the entire wash and rinse period.

Exception: A lower water temperature of 140°F (60°C) may be utilized, pro- vided linens are subsequently passed through a tumbler dryer at 180°F (82°C) or a flatwork ironer at 300°F (149°C).

3 Dietary hot water temperature shall meet minimum temperature require- ments at the point of use per the health authority.

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