Electrical Circuit Considerations For Water Heaters
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I am replacing an electric water heater. The original is 240 volts. Can I install a 120 volts…
© By: Dave Rongey
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Dedicated Circuit Requirements for Electric Water Heaters
Background: Lonnie, a Homeowner from Oxnard, CA
[ad#block]Question: I am replacing an electric water heater. The original is 240 volts. Can I install a 120 volts? What changes do I need to do? All help is appreciated.
Lonnie
Dave’s Reply:
Thanks for your electrical question Lonnie.
Lonnie, due to the amount of wattage that a water heater requires a dedicated circuit would need to be installed sized according to the specifications of the water heater manufacturer. This circuit will be either 120 or 240 volts. If there is an existing dedicated circuit with the correct size wire for the new water heater then the circuit can be converted either way by identifying the circuit wiring at both the electrical panel and the water heater location, color coding the wires appropriately and connecting the wiring to the required circuit breaker which is sized correctly to protect the wiring. Terminations to the circuit breaker and the neutral terminal will need to be adjusted for the specified required voltage configuration. Be aware that a 120 volt water heater is less energy efficient than a 240 volt water heater.
I have provided the following links that lead to fully detailed information on this website that will assist you with your electrical question:
For more information about 220 Volt Wiring Diagram
220 Volt Wiring Diagram
This link is helpful as a Homeowner
Do-It-Yourself Electrical
Make sure not to miss these Resources for: Other
Home Electrical Wiring Resources
The following may also be helpful for you:
A Complete Guide to Home Electrical Wiring
Be sure to get your copy of my BIG Book:
Perfect for Homeowners, Students and Electricians
Includes:
Home Electrical Wiring - Room by Room
120 Volt Circuits
240 Volt Circuits
Multi-Wired Circuits
Wiring Methods for Installing Home Electrical Circuit Wiring
Electrical Codes for Home Electrical Wiring
....and much more.
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My absolute favorite wire stripping tool that I have had in my personal electrical tool pouch for years, and this is the tool I use to safely strip electrical wires.
This handy tool has multiple uses:
The wire gauges are shown on the side of the tool so you know which slot to use for stripping insulation.
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