Planning a RMH using a big oil storage tank as the drum. Like a monster one... So the kusnetxov site is really intriguing, but I've not actually talked to anyone who has built a double-bell. It seems to make sense, but there have been enough rocketish stove failures/weak smokies built at my farm already. Also check out our youtube video "The Dome that ate a Rocket Stove"
Drove my Chevy to the levee but the levee was dry. I wrung this tiny ad and it was still dry.