The wick was inspired by Ron “Knotty” Mehringer’s “Knotty Coil,” which he developed after extensively testing the Boiler with existing alcohol stoves. Ron was the first person I knew of to use carbon felt in a Boiler, and hearing of his success from a couple other Boiler owners (you know who you are, Robert and James :) ) moved me in that direction. It is much better than the DIY soda can burner plans I had been working on. Thanks Ron!
Here’s why it rocks. The FireFelt wick is light and packs up small: .25 oz, and the reusable plastic sleeve can be stored in the chimney of the Boiler. When unfurled it has four pockets that are easy to fill with alcohol, and its c-shape directs flames up the walls of the chimney for excellent heat transfer. The shape also allows the opening of the “c” to either be turned towards or away from the inlet hole, regulating air flow for either peak speed (2 cups (473 ml) boiled in 4.5 min on <.75 oz (<21 g) alcohol) or peak efficiency (2 cups (473 ml) boiled in 6 min <.5 oz (<14g) alcohol).
Those numbers put it on par with both the fastest and most efficient alcohol-only stoves. It also provides a backup fuel option for the Boiler when wood fires are banned, natural fuel is scarce, or you just want something tamer for use on the patio. I’m really happy with how it came out.
The wick will be $9 and will be available to order later this week, when I will also post a video of it in use. For those who already have Boilers, the wicks will start shipping out next week. For Kickstarter backers, I’ll provide the option to save the shipping and just get the wick when the Boilers ship out. Which will, I promise, happen. :)