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I feel like I'm back at the Oil Drum!
Going with a heating option that uses very local fuel (in your case wood) is always a sound line of thinking. The amount of wood that you'll use totally depends on the amount of heat loss that the house has. I know people that have nearly identically sized homes and one place uses 5 times more wood than the other guy. If you have high amounts of insulation and low amounts of air leakage things can be very manageable. I know a few homes that only use 2 cord per winter in PEI.
The ventless heaters are attractive when it comes to cost, ease of use and can operate without electricity, but for myself I won't want to take the chance with the combustion gas issue. I noticed that the Procom unit has an oxygen sensor that is suppose to turn the unit off if the oxygen levels in the home/room get too low.
I The reason these types of heaters are hard to find in Canada is that the safety codes don't allow them. There are even a few states in the US that don't allow them ( see the Mr. Heater website ).
Your life will be in your hands. With no vent or flue pipe the combustion gases from the heater end up in the room/house with you. If the carbon monoxide levels get too high then you die. Here is a CBC story about recent deaths:
Here's what the US dept of Energy has to say about portable heaters:
I hope that this is helpful.