Remember these smoke generators often leave an oily residue.  Please
test elsewhere before placing into automaton.  Also the draft and
refueling the smoker is a big concern.  To work properly, they need to
be placed by the outlet.  Otherwise you may need an artificial draft
and/or access to reload the fuel.  The oil level is critical: too much
and it takes forever to heat; too little and your battery burns out
quickly.

Bob Yorburg