Tankless Water Heater Installation Requirements California

Tankless water heaters should not be installed near dryer vents or intake air vents.

Tankless water heater installation requirements california.

Because tankless units heat water on demand they also require higher btus. To heat the water quickly and efficiently tankless water heaters require a minimum 3 4 inch gas line. If the window does not open the tankless water heater clearance from a window requires a 12 inch setback. In a closet or other confined space opening into a bathroom or bedroom.

The minimum capacity for storage water heaters shall be in accordance with the first hour rating listed in table 501 1 1. In almost all circumstances replacing an existing water heater will require either one or two permits. Mount the tankless water heater securely to the platform. Gas fired water heaters which depend on the combustion of fuel for heat shall not be installed in the following locations.

Water heaters require two seismic straps. Build a platform with 2 x 4 inch pieces of lumber that will allow you to mount the new tankless water heater about four inches from the wall. A tank type water heater and a tankless or demand water heater for. A clothes closet or 4.

For both gas and electric models a tankless water heater s overall energy efficiency is measured using an energy factor ef rating. 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. Today tankless water heater energy factors range between 64 and 91 for gas fired models and up to 99 for electric models. A few rare cases may also require a third permit.

One located within the top 1 3 of the water heater unit and one at the bottom 1 3. This is as easy as heading down to the local planning or building department to ask for one. The first permit is for the water heater itself. 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.

The bottom strap must be located at least 4 away from the water heater controls. If the water heater is installed above the. 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. A room used or designed to be used for sleeping purposes 2.

Direct vent water heaters. This ef rating is based on test procedures developed by the u s.