I have a second hand, home made smoker. It is a wood/charcoal burner with sfb. It smokes great, but for long smokes it gets tough to regulate sometimes...so here's my question(s). Has anyone put a propane burner in anything like this? I would use wood/charcoal for the first part of the smoke, but if I choose I would like the option to switch to the propane to save wood. Would it be best to put it in the sfb or in the smoke chamber?