We are attempting our first rocket stove
(and mass heater) this weekend and have tried many variations but still have trouble with smoke (and flame) coming from the feed
. Initial paper start fire is really rocket sounding, but as the sticks are added, the sound isn't there, and eventually flames and smoke start coming up the feed side.
Here is what we have:
6" x 33" double insulated pipe that has been filled with vermiculite and clay
firebricks, clay, sand, regular bricks found in alley.
pre-burned 20 gallon barrel
Questions: 1) is there an ideal burn chamber length? too short, long, or tall? (ratio to the size of the pipe?)
2) is there a limit as to how high the feed chamber can be?
3) is there an ideal ratio of the size of the feed chamber to the upright pipe (6")