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#94893 - 08/17/05 07:22 PM Electric Floor Heat
George Little Offline

Registered: 01/18/04
Posts: 1492
Loc: Michigan USA
Has anyone on this forum had any experience with the floor heating system manufacturered by "Heatizon"? Since seeing it on a job installed in a bathroom, I am concerned about the requirement for GFCI protection. The voltage is about 36v. and the primary voltage is 240v. Look at 224.44(G).
George Little

2014 / 2011 NEC & Related Books and Study Guides
#94894 - 08/18/05 01:28 AM Re: Electric Floor Heat
e57 Offline

Registered: 05/27/03
Posts: 2837
Loc: S.F.,CA USA
I have heard some are adding built-in GFI protection, not sure about this one.... Haven't seen it yet.

And yep, if in a situation described by the code you refferance, requires protection, one way or the other.
Mark Heller
"Well - I oughta....." -Jackie Gleason

#94895 - 08/18/05 08:48 PM Re: Electric Floor Heat
gfretwell Offline


Registered: 07/20/04
Posts: 9023
Loc: Estero,Fl,usa
I left this one alone because we don't do a lot of heated floor in S. Florida.

Reading 424.44(G) I don't see any relief from the GFCI rule because it is 36v.

I would certainly defer to an AHJ who had actually seen one tho.
Greg Fretwell

#94896 - 08/18/05 09:01 PM Re: Electric Floor Heat
caselec Offline

Registered: 04/14/02
Posts: 557
Loc: San Jose, CA
I don’t know anything about the Heatizon system but the digital thermostats included with all the floor systems I have worked with have integral GFCI protection.
Curt Swartz


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