Blokes. I've build my UDS and have done a few good smokes in it. Couple of questions that I have for the more experienced:
1. My lid (dome weber) isn't airtight. It's not too bad, but there is airflow there. How important is a seal on the lid to maintaining temp? Mine seems to hold a steady temp ok - do I need to make sure that lid is 100% airtight? I'm using the normal Weber airflow adjuster in the lid as a chimney.
2. The chimney - or lack of.. would it be better for the smoker to have a proper chimney, rather than the weber opening in the lid? Ie... that would help convection and airflow, no?
3. My firepit has two rings for different charcoal loads - a very large one which sits about 1.5" off the side of the barrel (so around 18-19" in diameter) and a smaller one which sits inside this and is around 10". The 10" ring will take 8-9# of fuel, the large one will take 30#. This happened because the first firebox I built was way too big for the UDS, the coals were too spread out. I've so far used a max of around 8# in my UDS and got a steady 120degC for around 8 hours of burn time. Does this sound about right? I need to get this bit right for planning a long burn - how much fuel do you guys need for a 13 hour butt smoke?
I'll get some pics up soon - thanks for your help here!
Cheers - Mike