Tankless Water Heater Clearance Requirements

If reticulating pump in system.

Tankless water heater clearance requirements.

Unlisted water heaters shall be installed with a clearance of 12 inches 305 mm on all sides and rear. 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. This is as easy as heading down to the local planning or building department to ask for one. If the window does not open the tankless water heater clearance from a window requires a 12 inch setback.

Tankless water heaters also known as demand type on demand or instantaneous water heaters heat water directly without the need to store water. This water heater will attempt to provide hot water at the temperature setting even when the water flow is varied. Mounting clearances for stiebel eltron tankless water heaters. 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 full bore shut off valve is required on cold water side unions must be installed within 12 inch of water heater to facilitate removal first five 5 feet of water line insulated maintains min. Insulation is applied to the entire loop. This valve should be connected to a tube that discharges no more than six inches above floor level so hot water won t scald anyone nearby. How tankless water heaters work.

Nfpa 54 10 28 2 2 504 4 pressure limiting devices. Maintain proper space for servicing. Make sure that the mounting surface is solid and that the unit is level prior to securing the screws. Install the unit so that it can be connected or removed easily.

A tankless heater has a flow sensing device that is activated whenever a hot water tap is opened. Screws and plastic wall anchors for mounting on masonry or wood are provided. Refer to the clearances section in the installation manual for proper clearances. If the water heater is installed above the.

Tankless water heaters should not be installed near dryer vents or intake air vents. Stiebel eltron tankless water heaters should be mounted to a secure surface with 4 screws using the pre drilled holes in the back panel of the heater case. Tankless water heater pressure temperature relief valve safety requirements the temperature pressure relief valve lets water escape if the temperature or pressure is too high. The unit then heats the water using either a gas burner or an.

How much does a water heater permit cost. Combustible floors under unlisted water heaters shall be protected in an approved manner. The first permit is for the water heater itself.