Fixtures & Water HeatersQuestion 176 of 360

California requires storage water heaters to be braced against earthquakes. What is the minimum number of straps required?

a.One strap at the top
b.One strap at the center
c.Two straps, one in the upper third and one in the lower third
d.Four straps evenly spaced

Explanation

Water heaters must be anchored with at least two straps to resist horizontal displacement in a seismic event. One strap is placed in the upper one-third of the tank and one in the lower one-third. This keeps the tank from toppling and shearing its gas or water connections.

Law Reference: 2022 California Plumbing Code (CPC) §507.2

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