Tankless Water Heater Wiring Requirements

A tankless heater has a flow sensing device that is activated whenever a hot water tap is opened.

Tankless water heater wiring requirements.

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. If you need additional space in the panel for the circuit breaker then a quad circuit breaker may be. The specifications for each model are listed on this website. 2 x 40 amps dp.

Tankless water heaters can be 8 14 more energy efficient for homes that use a lot of hot water around 86 gallons per day. Once you have your total flow rate and the required temperature rise you can find the right size tankless water heater for your home. Simply locate the appropriate water heater sizes on ecomfort using your information. 1 x 60 amps dp.

Beyond a water heater permit some areas may also require either an electric or plumbing permit depending on the type of water heater. Wiring should be sized to maintain a voltage drop of less than 3 under load. 1 x 40 amps dp. The above specifications are only guidelines.

The unit then heats the water using either a gas burner or an. Electrical wiring and circuit requirements for a tank less water heater a tankless water heater will require a dedicated circuit as specified by the installation manual of the unit that has. If the window does not open the tankless water heater clearance from a window requires a 12 inch setback. Many water heaters especially traditional electric ones require changes to your wiring and potentially the breaker box.

Some codes require use of electrical sub panel for installation especially when heater is not mounted within line of sight of the main electrical panel. Tempra series tankless water heaters are designed to use the same 208 240 volt current that your conventional electric tank type water heater uses however it will require a larger breaker and likely a heavier gauge of wiring. Tankless water heaters should not be installed near dryer vents or intake air vents. 3 x 40 amps dp.

This unit is a 2 chamber model requires at least one 20 amp breaker requires at standard 120 volt electric outlet and requires a wire gauge size 12. 1 x 30 amps. Tankless water heaters also known as demand type on demand or instantaneous water heaters heat water directly without the need to store water. Recommended minimum wire gauge.

3 x 40 amps dp. Please consult your electrician for more details. How tankless water heaters work. Below we ve highlighted what size water heater you would need in our example of 6 5 gpm at a 63 f temperature rise.