Bathroom Heater Electrical Wiring
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How to Wire an In Wall Electric Heater – Typical Electrical Circuit Requirements for an In Wall Electric Heater, A dedicated circuit, typically 20 amps, 240 volts, verify the amperage with the size of the specific heater and the installation manual.
© By: Dave Rongey
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In-Wall Heater Electrical Wiring
Electrical Question: I would like to replace a in-wall heater that I installed in a small bathroom approximately 10 years ago.
The wall heater model is HF4003TA-RP, Finish Ivory, Standard Grille with a Built-In Thermostat and Wall Box, PCN 03210102, UPC 686334321013, Volts 240/208, Watts 1000/750.
- Is the thermostat switch single pole or double pole? Only the incoming black wire passes through the switch, so I am guessing single pole. I am very handy with wiring; I just don’t know the terminology.
- When I order a replacement, they offer either single pole or double pole. Which should I get? Is double pole better?
- My wife complains that the heater does not heat the room well enough. Markel offers units in 1000, 1500, and 2000 watts. My wiring is 2 pole 20 amp circuits, dedicated to this heater only.
Am I right that the wiring would support 2000 watts without a problem?
This electrical wiring question came from: Rex, a Handyman from Washington, Connecticut.
Additional Comments: Nice work!
Dave’s Reply:
Thanks for your electrical wiring question Rex.
How to Wire an In Wall Electric Heater
Typical Electrical Circuit Requirements for an In Wall Electric Heater
- Dedicated circuit, typically 20 amps, 240 volts, verify the amperage with the size of the specific heater and the installation manual.
- The in-wall electric heaters typically have a built-in thermostat control and is pre-wired, only the main circuit connection is required.
- Circuit wiring is connected in a built in electrical junction box.
- When replacing an existing wall heater it is best to purchase a new wall heater with the same voltage and amperage rating as the original heater.
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