Tankless Water Heater Amperage Draw

Maximum amperage 240v recommended household electric service recommended minimum wire gauge.

Tankless water heater amperage draw.

The rheem eco200xln3 1 outdoor natural gas tankless water the rheem eco200xln3 1 outdoor natural gas tankless water heater can provide up to 9 5 gpm at a 35 temperature rise. In a us household the current draw for a 1500 watt water heater is 12 5 amps. 2 x 40 amps dp. A point of service unit can be simply plugged in to an outlet but one providing all hot water to the house could require three 40amp double breakers 240v and three lines of heavy gauge cable from box to heater e g ecosmart 27.

The eco 18 model required two 40 amp breakers for installation and it had a 75 amp draw. Now in order to choose an electric breaker multiply the current draw of the water heater with 125 per cent in order to determine the size of the breaker you will need. 3 x 40 amps dp. I think scott commenter above is confused or uninformed about the electrical requirements of whole house electric tankless water heaters.

Rinnai tankless water heaters last up to twice as long have twice the warranty and save energy as they only heat water when it is needed. View profile view forum posts visit homepage view forum threads professional member join date nov 2004 location nj posts 1 318 post likes. How many amps does a water heater draw i have a 220 volt water heater with i believe a 1500 watt elements how many amps does it draw. The 199 900 btu natural gas tankless water heater is designed to supply continuous hot water for up to 3 bathrooms at the same time.

4 x 40 amps dp. According to the electrician we consulted the house in question was already approaching maximum 200 amp electrical capacity before adding the new tankless unit. 3 x 40 amps dp. Unfortunately the average electric tankless water heater needs at least 120 amps to operate and the average household s total capacity is 200 amps.

1 x 60 amps dp. A standard electric tankless water heater needs at least 120amps to run and the total capacity for an average home is 200amps. 1 x 40 amps dp. With tankless water heaters only using fuel when you re tapping the hot water it makes sense that you will consume less fuel and energy.

Plus you never have to worry about running out of hot water with a rinnai tankless water heater because it keeps heating as long as it is needed. Multiply the current rating of the water heater with 125.