Water Heater Installation Requirements
permit is required for installation of new and replacement water heaters.
Permits may be obtained at the Permit Service Center at 2120 Milvia Street or you may fax your permit application to us
using our ‘fax permit’ service.
- Water heaters are prohibited in
bedrooms, bathrooms, or in a closet that opens into a bathroom or bedroom.
- Water heaters shall be anchored
or strapped to the structure; strapping shall be at points within the
upper and lower ⅓ and shall maintain a minimum clearance of 4 inches from
the water heater controls.
- Water heaters supported from
the ground shall rest on level concrete or other approved base extending
not less than 3 inches above the adjoining ground level.
- Water heaters in garages shall
be installed so that burners and burner-ignition devices are located not
less than 18 inches above the floor.
- Water heater temperature and
pressure relief valves located inside a building shall be equipped with a
drain line and shall discharge to an approved receptacle or to the outside
of the building, with the end of the pipe not more than 2 feet nor less
than 6 inches above grade. The terminal end of the drain shall not be
- Where a water heater is located
in an attic, attic-ceiling assembly, floor-ceiling assembly, or
floor-subfloor assembly where damage may result from a leaking water
heater, a watertight pan of corrosion-resistant materials shall be
installed beneath the water heater with a minimum ¾ inch diameter drain to
an approved location.
- Water heaters must comply with
the Federal minimum Energy Factor standards, those that meet the exact
minimum shall be externally wrapped with insulation having an installed
thermal resistance of R-12 or greater.
- The first 5 feet of hot and
cold water pipes from the storage tank or water heater shall be insulated.
See the Division of the State Architect's guidelines for seismic bracing.
Installation of new and
replacement water heaters.
Permits may be obtained at the Permit Service Center at 2120 Milvia Street or
you may fax your permit application to the Permit Service Center using our
'fax permit' service.