§ 23.25.507.0. Other water heater installation requirements.

Replace Section 507.4 with the following:

507.4 Water heaters shall be installed in a watertight pan of corrosion-resistant material. The pan shall be equipped with a minimum three-quarter (¾) inch (20mm) diameter drain discharging to an approved location. Water heater enclosures shall be provided with an approved floor drain.

Exceptions:

1.

A floor drain is not required when a water heater is installed in a garage and the garage floor slopes to the exterior.

2.

A floor drain is not required if a water heater is equipped with a listed safety device to control flooding.

3.

A floor drain is not required when a water heater is installed in an attic or above a drop ceiling and the pan is drained to an approved location.

4.

A pan is not required when a water heater is installed on a concrete slab on grade.

5.

A pan is not required in a garage, where a corrosion-resistant material is placed under the water heater provided that it covers the entire platform and extends to all walls adjoining the platform and turning up the walls a minimum of two inches.

( AO No. 2015-127, § 1, 4-1-16 )