Are there some basic starting points for a J Stove? I have been reading as much as I can, but still don't seem to know a fat lot.
I am building what I think will be a J stove, in that the fuel hopper has built up sides, rather than being fed in horizontally. Is that correct?
I am using the bricks from inside a storage heater to form the stove itself and then insulating around them. The cross section will be square rather than round, does that matter?
Is there a ratio of cross section to height of burn tube, fuel inlet length, etc, etc?
Thanks again for any help and advice.