All about draft
"proper drafting techniques"

   Perhaps the most important aspect in using a multi fuel (or straight wood burning) stove is your draft.  This cannot be emphasized enough.  It is important that your chimney or stove pipe is at least 2' higher than the nearest ridge line on your home, workshop or garage.  It is also imperative that you have your chimney cleaned once a year!  Not only is it a safety factor, but it will help ensure you have maximum draft capability for a good, sustained burn.  Also see draft inducer.

Another factor is your flue diameter.  In larger stoves, it is important to go to an 8" collar, vs. the standard 6".