Tankless Water Heater Wiring Requirements

Wiring should be sized to maintain a voltage drop of less than 3 under load.

Tankless water heater wiring requirements.

4 x 40 amps dp. Please consult your electrician for more details. Once you have your total flow rate and the required temperature rise you can find the right size tankless water heater for your home. The specifications for each model are listed on this website.

Below we ve highlighted what size water heater you would need in our example of 6 5 gpm at a 63 f temperature rise. Beyond a water heater permit some areas may also require either an electric or plumbing permit depending on the type of water heater. 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. A tankless heater has a flow sensing device that is activated whenever a hot water tap is opened.

For homes that use 41 gallons or less of hot water daily demand water heaters can be 24 34 more energy efficient than conventional storage tank water heaters. The above specifications are only guidelines. 1 x 60 amps dp. Simply locate the appropriate water heater sizes on ecomfort using your information.

Many water heaters especially traditional electric ones require changes to your wiring and potentially the breaker box. 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. 2 x 40 amps dp. This model is also for a point of of use low flow sink faucet and can also be used for a solar water heater booster or a storage tank booster.

Recommended minimum wire gauge. 3 x 40 amps dp. If you need additional space in the panel for the circuit breaker then a quad circuit breaker may be. Tankless water heaters should not be installed near dryer vents or intake air vents.

3 x 40 amps dp. How tankless water heaters work. Tankless water heaters also known as demand type on demand or instantaneous water heaters heat water directly without the need to store water. 1 x 30 amps.

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. 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. The unit then heats the water using either a gas burner or an. If the window does not open the tankless water heater clearance from a window requires a 12 inch setback.