Zelph's Stoveworks Cobalt
1 ounce (29 g)
6.5 minutes with half-ounce of fuel.
Way better than any pop can stoves.
- Fast boil time
- No pot support needed
- Best to have a large pot surface
After trying a number of my own DIY stoves I bought one of these and it changed my mind about carrying an alcohol stove. I then ordered two more stoves for friends.
The only negative, if there is one, is that you should be using a pot of at least 5 inches in diameter to keep the flames from going up the sides and getting the most out of your stove and fuel. I was able to get two cups of water at a boil in 6.5 minutes and the stove was out at 8.5 minutes on one ounce of fuel.
Update: I just got in the 0.7L Optimus tea kettle and can now bring two cups of water to a full boil in 4.5 minutes using this stove/ kettle combination. Wonderful!
Source: I bought it on ebay