underfloor electric heating as an afterthought without dedicated wiring

[jacklynhydejr]

I'd really like to install underfloor, electric radiant heating in my bathroom. The space to cover is very small, probably 25-30 sq ft. once the tub and vanity are factored in. Not having planned for this, we don't have a dedicated breaker for it.

Current set up: we have two junction boxes, daisy chained together, running off a 20A breaker. The first junction box is housing a standard outlet by the vanity to power electric toothbrushes, razors, hairdryers, etc. This is connected to a second junction box, floor level, by the toilet. The intentions for this second box were to power a bidet. If necessary, I can dedicate this solely to the radiant heating instead. The product I am looking at is Schluter Ditra and requires 15A.

Am I asking too much off a single breaker? If it is, is there anything I can do or am I out of luck?

TIA

 

[Megawatt]

I'd really like to install underfloor, electric radiant heating in my bathroom. The space to cover is very small, probably 25-30 sq ft. once the tub and vanity are factored in. Not having planned for this, we don't have a dedicated breaker for it.

Current set up: we have two junction boxes, daisy chained together, running off a 20A breaker. The first junction box is housing a standard outlet by the vanity to power electric toothbrushes, razors, hairdryers, etc. This is connected to a second junction box, floor level, by the toilet. The intentions for this second box were to power a bidet. If necessary, I can dedicate this solely to the radiant heating instead. The product I am looking at is Schluter Ditra and requires 15A.

Am I asking too much off a single breaker? If it is, is there anything I can do or am I out of luck?

TIA

I guess that you could use the junction box beside the toilet since it’s probably GFCI protected. As far as over loading that particular circuit, it won’t be pulling a load unless you plug something in. The biggest problem I see is the hair dryer and the heat on could be on at the same time could trip the breaker.

 

[Vortigern]

Sounds a bit high in terms of current for underfloor heating for that area. 150w should do it. 15A sounds a bit insane. You planning on cooking steak while your bathing?