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Question DetailsAsked on 3/8/2016

Electric radiant heat in a concrete basement bathroom

Is there any issue with putting electric radiant heat in a basement bathroom that is near the floor drain (meaning the possibility of the drain backing up)? My mother and I are arguing about it and she says it will short out if the floor floods, I say it will be fine since its embedded in the concrete and people have it in bathrooms all the time

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1 Answer


Obviously, in a basement slab (or under basement floor) it is more likely to see high humidity or even free water, so more likely to fail than otherwise. Personally, I would not put electric in-floor heating in that location, but as I see it there is nothing in the building codes prohibiting it. But would have to be GFCI/AFCI equipped (which one depends on your locale, but price about the same for each - about $50 additional.

For added safety you can also get metal shrouded heat cable which has a bround mesh or tubing around the heat wires so if there is a short to goes straight to that ground - probably about $100 extra cost for the system for one bathroom.

Another alternative if you are concerned with safety is hot water (actually glycol usually) loop system with electric heat and circulating motor to it (assuming you do not have hot water baseboard heating system) - or a thermostatically controlled loop with circulating pump off the hot water heater.

Answered 4 years ago by LCD

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