I kept melting my aluminum mesh/screen tube smoke generator with the torch lighting the pellets.
This one burned 4 hours then I went to the one below
This one is a small splatter guard, ashtray and heavy duty grill foil. Just layers of folded foil around the edge and ashtray (one long strip.) It would burn for 6 hours but put it out after 4hrs. before it got to the out of shape area at the end.
The coals aren't lit just moved out of the way. I didn't spend the time to center the ashtray very well. I've only used mine for cold smoking cheese, eggs and Canadian bacon. I would like a steel tube smoke generator for hot smokes and have seen perforated steel in 24"X24" sheets at the box stores for $35.