I confess, I've never tried Klean-Heat. It seems kind of pricey as a heating fuel, where you can burn a gallon a day in cold conditions, and the fumes are vented overboard anyway. I can see the advantage as a cooking fuel. I really have to struggle to go through more than few gallons cooking fuel per summer. I'm on the boat a lot, and I like to cook. I admit I have a propane barbecue grill that I use frequently -- with the "bomb" in a canvas sack mounted on the aft rail, where any leaking fumes will not go into the bilge. The whole unit burner and all is outside the boat, actually. I dabbled with a few of those butane stoves that use the notched canisters, but they are hardly economical. A couple of pots of pasta and the morning tea, and they are spanked. The cylinders also pose a disposal issue. I tried to have a chuckle about bio-ethanol (it seemed a marketing ploy) until I found that anhydrous ethanol is synthesized from petroleum. Ya learn something new every day.