in floor heat - isolated circuit?

[shnelson]

Curious to know if a small in floor heat mat would require it's own dedicated circuit.

I am looking at a small 3x5' grid that claims a max draw of 5A.

I know it is likely best practice and recommended, but if possible I'm looking for a specific MN code reference.

[JohnMickish]

I am going to assume that this is in a bathroom under tile?

[shnelson]

I am going to assume that this is in a bathroom under tile?

In this case, yes - but i'd be interested to know if it'd be any different with out GFCI involved (say a foyer or entry way).

[JohnMickish]

It is my interpretation of the code that you do not need a gfci or a separate circuit to run the infloor heat. I am not your inspector it is just my interpretation. I earlier ask if it was a bathroom just to double check to see if it needed the gfci protected or not.

[shnelson]

Thank you for your insight! I think I am going to scrap the idea. I would personally prefer to isolate the circuit, but I'm all out of room in the panel & mine doesn't accept the tandem breakers like I was hoping it would. If I were to put it on an existing circuit, it would go on with the bath fan, a pair of vanity lights & serve a small unused bedroom (one light with nothing more than an alarm clock or lamp plugged in). I figure about 4a max off of all that, add 5a for the heat & I'm still under 10 max load. If code permitted it, I'd be kosher, but my uncertainty encourages me to drop the idea.

Looks like this bathroom floor is going to be a little chilly in the winter time