What size wire for 30 amp 240 volt electric heater

mandan86 Posts: 1, Reputation: 1

New Member

Dec 1, 2009, 02:31 PM

What size wire for 30 amp 240 volt electric heater

What size wire should I use for a 30 amp 240 volt electric heater for my guarge?

stanfortyman Posts: 5,598, Reputation: 279

Electrical & Lighting Expert

Dec 1, 2009, 03:10 PM

If the draw is 30A then you need #8cu wire on a 40A breaker.

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