Tankless Water Heater Voltage Requirements

For example an electric tankless heater that is rated at raising the water temperature 55 degrees at 1 5 gpm will supply you with a 120 degree temperature if the incoming water is 65 f or higher.

Tankless water heater voltage requirements.

Rinnai tankless water heaters require 120 volts ac 60 hz and less than three amps. Recommended minimum wire gauge. Tankless water heaters can be 8 14 more energy efficient for homes that use a lot of hot water around 86 gallons per day. Unfortunately the average electric tankless water heater needs at least 120 amps to operate and the average household s total capacity is 200 amps.

This means you will have to upgrade your electrical system to accommodate for the larger load demand which could cost you up to 1 500. Today tankless water heater energy factors range between 64 and 91 for gas fired models and up to 99 for electric models. For both gas and electric models a tankless water heater s overall energy efficiency is measured using an energy factor ef rating. This ef rating is based on test procedures developed by the u s.

Recommended household electric service. Carpentry although you won t be working with wood you need to be familiar with levels to ensure a level base and may need to anchor pipes to ceiling beams. The need for a tankless water heater is 120v ac which is the regular power outlet in the u s homes. 1 x 6 awg copper.

Natural gas and propane tankless water heaters don t need much electricity and are 8 50 more effective than traditional tank style water heaters. Electrical even gas water heaters have electrical parts and need to be hooked up to your breaker box.