Wire Gauge For Electric Hot Water Heater

An acquaintance has an older mobile galvanized branch water lines and his water heater.

Wire gauge for electric hot water heater.

In the electric water heaters and thermostat wiring and installation series we will be showing that how to wire and install a non continuous non simultaneous dual element water heater and thermostat for 240v ac single phase us and 230v ac single phase uk eu. For example a 20 amp hot water heater needs 12 gauge wire a 25 amp hot water heater requires 10 gauge wire and a 30 to 40 amp hot water heater requires 8 gauge wire. Sorry guys been plumbing for 30 years here in pa never seen a electric water heater on any thing less than 30 amp 10 2 wire 65 70 percent of fires are from faulty electric. Common current and wire gauge sizes wire a hot water heater with wire that s sized to accommodate the heater s current requirement.

When selecting element buy same wattage or less wattage keep volts the same. Click to see full answer. Click to see full answer. My personal preference for electric water heaters is to use an 80 gallon model.

For example a 20 amp hot water heater needs 12 gauge wire a 25 amp hot water heater requires 10 gauge wire and a 30 to 40 amp hot water heater requires 8 gauge wire. Yes an electric water heater is a dedicated circuit. Speedy petey licensed electrical cont. Wire a hot water heater with wire that s sized to accommodate the heater s current requirement.

Jump to latest follow 1 16 of 16 posts. Can i replace 4500 watt elements with 5500 watt elements. A conventional electric water heater will come with a black wire and a red wire which are connected to the wires of the same color as described above. Both 4500 and 5500 watt water heaters are not correct if breaker is 20 amp and wire size is 12 gauge.

In this case a 25 or 30 amp double pole breaker can be used and 10 copper wire. Some large heaters draw up to 50 amps requiring 6 gauge wire. That means no less than 10 copper conductors and either a 25 or 30 ampere circuit breaker. Single phase 240v and 230v non simultaneous dual element water heater thermostat wiring.

Common current and wire gauge sizes for example a 20 amp hot water heater needs 12 gauge wire a 25 amp hot water heater requires 10 gauge wire and a 30 to 40 amp hot water heater requires 8 gauge wire. My electrical wiring project involves change the wiring a water heater in the bathroom of a mobile home. Larger heaters are rated at 4500 watts which means it is drawing 18 75 amps again assuming a 240 volt circuit. Most residential water heaters have 4500 watt elements and require a circuit ampacity of 24 amperes.

The ground wire is attached to the green ground screw which is in the same wiring junction box compartment which is built into the top of the water heater. Joined feb 1 2004 7 829 posts 15 nov 18 2011. Wire gauge for water heater and rewiring. Some large heaters draw up to 50 amps requiring 6 gauge wire.