Tankless Water Heater Installation Requirements California

The minimum capacity for storage water heaters shall be in accordance with the first hour rating listed in table 501 1 1.

Tankless water heater installation requirements california. Tankless water heaters should not be installed near dryer vents or intake air vents. If the water heater is installed above the. Direct vent water heaters. Mount the tankless water heater securely to the platform.

Because tankless units heat water on demand they also require higher btus. For both gas and electric models a tankless water heater s overall energy efficiency is measured using an energy factor ef rating. This is as easy as heading down to the local planning or building department to ask for one. A room used or designed to be used for sleeping purposes 2.

A tank type water heater and a tankless or demand water heater for. Tankless water heater vent clearances if the unit is vented to the outside then it needs 12 inches of clearance from a door or window. One located within the top 1 3 of the water heater unit and one at the bottom 1 3. If money or return on investment is the principal reason you are considering converting to a demand type water heater you should perform an accurate total cost analysis that reflects all of the costs to install operate maintain both types of water heaters.

No water heater shall be hereinafter installed that does not comply with the manufacturer s installation instructions and the type and model of each size. If the window does not open the tankless water heater clearance from a window requires a 12 inch setback. This ef rating is based on test procedures developed by the u s. A tankless water heater requires a 4 foot clearance from the side or below a door or window that opens unless the unit is directly vented to the outside.

The regulations of this chapter shall govern the construction location and installation of fuel burning and other types of water heaters heating potable water together with chimneys vents and their connectors. Gas fired water heaters which depend on the combustion of fuel for heat shall not be installed in the following locations. Today tankless water heater energy factors range between 64 and 91 for gas fired models and up to 99 for electric models. In a closet or other confined space opening into a bathroom or bedroom.

Water heaters require two seismic straps. A clothes closet or 4. In almost all circumstances replacing an existing water heater will require either one or two permits. A few rare cases may also require a third permit.

The first permit is for the water heater itself. To heat the water quickly and efficiently tankless water heaters require a minimum 3 4 inch gas line.