Electric radiant floor heating

[ticica]

I am in a process of insulating a small 15'x20' garage to use as a hobby machine shop. Here, in Toronto, temperatures do drop quite low during winter. The garage walls are exposed cinder block and the roof has exposed rafters with no insulation. The floor is a concrete slab of unknown thickness.
I have been thinking about using a heating foil product such as this one: http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=320305740694. The plan is to put some insulation on the slab, then the heating foil, and finally a layer of OSB.
Does this sound reasonable? Anything I should watch out for?

 

[brad d]

Insulate the whole building.. then put some heat in it..

In Winnipeg lots of people just use 220v construction heaters.

 

[ticica]

Yes, I am planning on insulating everything.
So far, I haven't seen anyone use electric radiant floor heating in a garage and this makes me wonder whether there is anything inherently bad about it...

 

[Weedwaka]

It might end up being very expensive to run

 

[ticica]

I can only use electric energy. Is floor radiant any less efficient than other electrical options? The only cause for this that I can think of, is the proximity to the concrete floor, which is why I plan to put some insulation underneath (such as 1 1/2 inch of rigid insulation with some reflective foil on top).

 

[po1973]

I will be posting detailed info and pix of my electric powered in floor heat project that I am just finishing up. I'm located in Minnesota. Check this forum TONIGHT for the update!!