In-Wall Heater


Old 01-25-04, 01:34 AM
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In-Wall Heater

Not sure if this is the right forum or not, but here it goes.

In my laundry room I have a 2000 watt, 240 volt in-wall heater. This unit is a very old unit inwhich the heater coil/element is bad so I decided to replace this unit with a 4000 watt, 240 volt unit. Currently the 2000 watt heater is on a 20 amp circuit with 12/2 wiring. I have ran new 10/2 wiring to accomodate for the additional wattage, but I am unsure of the correct circuit breaker amperage I should use. I thought I read somewhere that I should use a 30 amp circuit breaker, but I'm thinking that a 20 amp would be correct as the 4000 watt unit is rated at 16.7 amps. Any and all replies are greatly appreciated. Please let me know if you have any questions.

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Old 01-25-04, 06:03 AM
Jay11J's Avatar
Join Date: Sep 2001
Location: Rochester, Minnesota
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20 amps will be ok.
Old 01-25-04, 08:20 AM
Ed Imeduc's Avatar
Join Date: Aug 2002
Location: Mountain Williams Missouri
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I think if you check. A #10 wire on 220V and 4000 or 4500 watt will go for a 30 amp breaker ED
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