Installing radiant floor heating

I just purchased radiant floor heating mat that covers 1 meter.
The guy at Home depot really didn't know how much I need after I told him my bathroom area is about 2 square meters. He seemed to think it would radiate and be good enough.
any idea how far this heat travels past the wire?

TRUE COMFORT HEATING SYSTEM FOR FLOORS

 

What exactly do you mean? Are you looking for floor warming or to heat the entire bathroom via radiant floor heat?

Electric radiant cannot be installed under cabinetry or bathroom fixtures.

 

If you went to homedepot, the mat you looked at is probably SunTouch.
I have installed few of those in past.
You will feel warmth only right on top of the mat + few inches. (I'd say 3" at most).

You should buy enough to cover open area, but never over. Do not install under cabinets. It is better to buy a little less than too much. If you have too much, there is nothing you can do but to rip it all out and buy smaller one. If you have little less, you can concentrate on the area where you actually steps on.

You can also install under walk-in shower as long as you follow manufacture's instruction.

Also, install the sensor few feet into the bathroom, and never under where you might put a mat or towel down. Heat trapped by them will turn off radiant heat mat prematurely.

It takes quiet a long time to to heat up, especially if your tiles are cold.

If you can, dedicated circuit from the breaker is strongly advised. Depending on the size of mat you get, it might actually be must. Check with manual.

 

I would not bother installing floor heat in the shower. The hot water of the shower warms up the floor very quickly.