I'm putting this on a new thread because the development of my volcano kettle is complete. It weighs 42g or 1 1/2oz and the stove weighs 31g or just over an ounce.
I just finished and tested my first customer's kettle and it boiled 2 cups (16oz 474g) of 17C tap water in 3 mins 30 seconds using 13 grams of alcohol fuel.
I think that's as fast as the quickest gas and canister stoves using a conventional pan set up isn't it?
It has a thermal efficiency of 60% and has met all my targets for weight, speed, economy, and ergonomics.
I can also make these using heineken keg cans with a slightly smaller capacity if they use the fast 1oz stove or a full 2 cups using my 4g lip balm pot stove. Boil time with the small stove is around 9 mins.

I've also developed a small version which weighs 1oz with the small stove weighing 4g which boils 1 cup (8oz 387g) in under 5 mins with 6g of alcohol fuel. Both kettle designs use jointing techniques which keep the minimal amount of glue used away from both the water and direct flame.

I have two more orders to fulfill and will have a few 24oz cans left. If anyone would like one of the 2 cup or 1 cup kettles with matching stove at an introductory price, PM me for more details. I'll offer a discount to those willing to send me more 24oz cans to the UK. It's bank holiday weekend over here and I'll be away from thurs-tues on a backpacking trip.
Cheers
Rog tallbloke

