Can I use denatured alcohol as fuel in this stove? If not why? Thanks

Write your answer here...In addition to the previous, perfectly correct replies, alcohol has a pH well above 7; it eats aluminum and titanium fuel bottles.

Look at alcohol as part of a cooking "system" to judge whether it's right for your trip. And consider your conditions. The above descriptions of alky are correct, but it's a great choice under the right conditions. You can make a supercat stove for near Zero cost and a few ounces in weight, plus the denatured alcohol can be carried in a plastic water bottle. You'll burn 1oz of fuel to boil 2 cups of water in 8-10minutes. You can also create a simmer ring to extend the same 1oz for 20 minutes of simmer. I've pushed the cold temp limitations by warming the fuel bottle inside my jacket and by using an insulated bottom plate. That said, it's not intended for temps below freezing. It will also experience issues at higher altitudes attempting to reach "boil". As a one-person, 3-three season system, for under 4-5 days, it doesn't get lighter.

Phil is correct. The DragonFly burns many different types of liquid fuel but not alcohol of any kind. There are two main reasons for this: 1. Alcohol doesn't pressurize like refined fossil fuels which is one of the most important factors for burning, heat being the other. This is why pre-heating is such an important factor with pressurized stoves. 2. Alcohol needs oxygen to attain higher BTU's. This being the case, it burns more efficiently in an open/ventilated environment. BTW, Trangia makes an alcohol stove that when heated on the bottom while burning, produces much higher BTU's than when not being heated. Still not @ the level of pressurized stoves.

No, but it can be used for preheating by pouring/squirting a bit into the burner cup. The stove isn't jetted for it, and all the fuels that the Dragonfly will burn release much more energy during combustion. With about 50% less energy per ounce than white gas, alcohol will take about twice as long to heat your food/water, and isn't good for group cooking, which the Dragonfly excels at. The flame it produces is almost invisible, which makes it hard to judge flame setting or any problems. Denatured alcohol also doesn't vaporize well in cold temperatures, and that would make for a very inefficient stove under many of the intended use conditions. I think that about covers it, but I'm dying to see what other input comes along. Very cool question! Thanks!