Electric steamshowers

[Riograndeelectric]

I have a bathroom remodel that I will be starting in the next couple of weeks . the owner has asked to have an Electric steam shower. My question is where do I find the code relating to this and what article?

I can only think of article 680 for pools and spas . This is my First Steam shower that I will have installed and any feed back /advice would be welcome. I belive that calculations would fall under article 424.

I do not have an exact model # and or rating as it is still in design stages. estimate figured at 240V 40 amp single phase
Thanks.Cameron

[Pierre C Belarge]

Art 680 does not apply to bathrooms.

You will apply the applicable requirements from the NEC, generally from Chapters 1-4.

[iwire]

There is nothing special about wiring the steam generator for a steam room.

[mdshunk]

I've wired a good many steam generators, and many of them need GFCI protection, according to manufacturer documentation. The last one (two weeks ago) was 30 amp, 120 volt. That GFCI breaker was a little bit weird. I don't know if I ever used a single pole, 30 amp GFCI breaker previous to that.

[Riograndeelectric]

Art 680 does not apply to bathrooms.

You will apply the applicable requirements from the NEC, generally from Chapters 1-4.
yes but what about pools and spas? they are required to follow article 680 even if in a bathroom.
although a steam Generator is not a pool or spa.

[stickboy1375]

yes but what about pools and spas? they are required to follow article 680 even if in a bathroom.
although a steam Generator is not a pool or spa.

If a steam generator is not a pool or a spa why would you use art.680?

[Riograndeelectric]

I've wired a good many steam generators, and many of them need GFCI protection, according to manufacturer documentation. The last one (two weeks ago) was 30 amp, 120 volt. That GFCI breaker was a little bit weird. I don't know if I ever used a single pole, 30 amp GFCI breaker previous to that.

I have used a few single pole breakers of these types before execpt that they were a GFEP (Ground Fault Equipment Protection) for electric heating mats and electric snow melt equipment.

[iwire]

All you are doing is hooking up a powerful water heater.

No special NEC rules, follow the manufacturers directions and you will be good to go.

[Riograndeelectric]

If a steam generator is not a pool or a spa why would you use art.680?


I was not saying I would use 680 but rather 680 does apply to bathroom si it invloves a pool or spa /whirlpool hot tub.
you are right 680 does not apply ot steam Generators.

[Riograndeelectric]

All you are doing is hooking up a powerful water heater.
No special NEC rules, follow the manufacturers directions and you will be good to go.

then does article 424 come in to play for calculating and to use 125% of name plate for load calcs and wire size?

[mdshunk]

then does article 424 come in to play for calculating and to use 125% of name plate for load calcs and wire size?No, because it's not fixed electric space heating (room heating). Check out 422 instead.

[stickboy1375]

I really don't think a steam generator is a piece of Fixed Electri Space-Heating Equipment...

[iwire]

Rio the NEC comes close to directly addressing your installation in 422.10(F)(3) (2002 NEC) but your unit is under 48 amps so it really does not apply.

[Riograndeelectric]

I wish to thank everyone for the excellent advice.
I got confused and said 424 instead of article 422. Thanks.