Theo Westington

Great... sound positive. I had already thought that the heat riser should be insulated (at least a little) all the way up, and yeah i was hoping it would make a nice little stove for boiling water and veg.

Can I just check that when you say "burn out" the top can, you do mean literally burn right through it?!?
Also I'll probably be using a full J pipe eventually as I like the vertical feed.

Should be knocking it together soon so will post relevant info and pics when I do
Cheers for your help

Hey guys, new here but gathered alot of useful stuff in the forums on rocket heaters.. and now i want to build one.
I want to cover my rocket stove with a barrel so that I can use an exhaust to vent fumes from a small space. I cannot fit in any thermal mass on the exhaust, it is purely for ventilation.

Space is so limited in fact that I want the whole thing to be very compact and hence I was thinking that instead of the barrel covering the whole stove, it could cover just the top of the vertical pipe which protrudes from the insulated section. This would mean that two barrels of the same width could stack one on top of each other...
Im guessing that this is sounding problematic but hopefully my rough picture may make it easier to see my point..

Bare in mind that it is not to accurate scale but is a guide of the sort of proportions i was thinking of. Also when i say barrels, im more likely thinking two number 10 food cans or something fairly similar.

So anyone want to get started on the numerous things that are probably wrong with this?

Thanks in advance.
Theo