Don't quote me on this....but I think in the USA it's illegal unless you have the proper equipment.....I know on 2 houseboat trips in the Kawathans we had a full size gas grill aboard.......but if you do decide to BBQ onboard PLEASE be EXTRA cautious because you could turn your boat into a bomb. Do some extra research on this before just doing it...maybe contact your Canadian Coast Guard Auxiliary for info.
Good Luck and play it SAFE,
Bob