I see this all over the place, but I've never tried it. I always assumed it was another variant on Sterno (pass). If it's hotter, it might be worth a look.

In Canada, it appears to be stocked in Home Hardware stores. And I'm sure I've seen the refills at Canadian Tire. There seems to be a stove kit (pot stand and fuel can) available:

http://www.canadiantire.ca/AST/browse/5/SportsRec/Camping/PortableHeaters/PRD~0762103P/Emergency+Heat+Kit.jsp