Tankless Water Heater Wire Gauge

Some large heaters draw up to 50 amps requiring 6 gauge wire.

Tankless water heater wire gauge.

This electrical wiring project is about how to connect the wires from the circuit breakers to a ecosmart 18 tankless water heater. The water heater should not have wiring coming out of it for splicing. Wires to the tankless water heater reviewing the electrical question. Wire connections for a ecosmart 18 tankless water heater.

2 x 40 amps dp. 1 x 60 amps dp. More about electrical wiring for a water heater. Recommended minimum wire gauge.

This way you are sure to protect the wire gauge of the circuit. I bought an ecosmart 18 tankless water heater. 1 x 40 amps dp. Electrical wire for electrical repairs and home remodel projects.

Here is the spec sheet and your unit is a 13kw. Wire a hot water heater with wire that s sized to accommodate the heater s current requirement. If the existing cable is 12 2 type tn copper with tw or thw insulation then a 2pole 25amp breaker would be correct. 3 x 40 amps dp.

There should be terminals on the bottom of the unit which would accept a minimum of 6 gauge wire 240 volt coming from a 60 amp double pole breaker. Details the electrical requirements for the stiebel eltron tankless water heaters including amperage electrical service required wire gauge and breaker sizes that are recommended by the manufacturer etc. 4 x 40 amps dp.