I currently have a 200 amp main breaker box in my house and is completely full of breakers. I would like to add dedicated 20amp circuit in my bathroom so I can install electric heated flooring below my tile. What would be the best way to add circuit? I assume I will need to add some sort of a Auxiliary panel next to the main box.

Wow. Is your house an "electric" house... water heater, furnace, range dryer? How many breakers do you have in use now?

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Originally Posted by THARMS

I assume I will need to add some sort of a Auxillary panel next to the main box.

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That's generally the drill. What is your level of experience with electrical work?

Can you use tandem breakers where you are? That may be easier than installing a sub-panel if your only talking about one circuit. Depends on if they are allowed in your area.

Djm,

Did you mean mini circuit breakers instead of tandem?

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Originally Posted by donf

djm,

Did you mean mini circuit breakers instead of tandem?

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Tandem, mini, skinny, twin, space-saver,. all the same thing.

Also called half size.

My 2 cents.

Need to check the panel label, not all panels allow tandems, and some do not all allow many.