I have done a lot of boston butts etc, I highly doubt it will take 16 hours. More like 9-12 hour range I would thing. Obviously if you can run your smoker in the 240-250 range it will take less than if you are in the 225-230 zone.
A few things:
1) your smoker might have some temp swings, especially as a brand new one. don't freak out (btw we all have ourselves but oh well)
2) You may hit a temperature stall for 2-3 hours, you will swear it will never move off the temp, chew your nails, curse the gods and debate ordering a pizza. but it will break and move on
3) check in through the day and take pictures.
good luck. you picked one of the things that is the hardest to mess up. I'm sure you will do fine.
Thanks!!! I've done several butts on my kettle. Loved them. And, you're right that they are very forgiving. I just didn't want to wake up at 3 to have it ready for dinner if that wasn't likely. Thanks for the tips!! Will check in tomorrow for sure.
If it does cook sooner than expected, wrap it in foil, and place it in a pre-heated oven. You'll need the down-time for redistribution of juices anyway. I finish mine around midnight, and the wife pulls the meat about 8 hours later after removing the butt from the oven. The meat is still very warm.
I agree with Keith on the cook times.
What temp do you use for the oven?
As low as your's will allow (generally 170; some models can only get down to 200).
That's a good alternative to what I was thinking (wrap it in foil and put in the cooler). What temp do you use for the oven?
You probably know by now that the meat temp dropping a few degrees is no Big deal. Slow and steady wins the race.