They're manufacturing these in Newfoundland and using them to heat facilities in the provincial capital, Fort McMurray.
http://www.youtube.com/watch?v=bRZvAAqzXIw
Concerned about how resilient they aah for winter operation? Take a spy at the ingenuity of this fellow roight heere, do the computations, and make necessary adjustments to the design of the unit:
http://www.youtube.com/watch?feature=endscreen&NR=1&v=bCbg9XCoR_8