[Jeff_H]

I think that you have gotten old fuel that may have picked up moisture as alcohol is prone to do. My results with the Origo is that it is pretty comparable to the normal marine propane stove burners (rather than the larger burner that is on some). We had done a similar comparison some years ago that I put up the results on one of the threads here at the time.

If you good fuel grade alcohol there is no smell at all.

Jeff