I have a pair of Swiss Ranger volcano stove kits that I opened up to take a Sterno can and the slightly smaller Trangia alcohol burner... the corrugated sides of the stove do not allow a Sterno can to drop in, the Trangia does...

the Trangia works very well on denatured alcohol, and easily outperforms the Sterno

if you loop a Dietz style lamp wick in the bottom of the open well of the Trangia, 70% isopropyl alcohol will work about as well as the jellied alcohol in the Sterno can, as the wick will eventually get the brass hot enough to boil the alcohol and work the jet ring...if you make a tight loop not touching the sides of the well with the wick, it will heat the well quicker

I chose to include the lesser performing Sterno in my car kit due to its storage advantages...

a bottle of rubbing alcohol in the work place should not look suspicious...