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FYI if you have problems keeping the AMNPS going look into the AMNTS tube smokers from Todd. They do better in the propane smokers. I use mine in my propane smoker and they do good until you get above 285. Then the pellets quit smoldering and ignite.
Thanks for the information, I'm really not sure what to expect yet. I will be installing a 3" air vent in the door for fresh air. The AMNPS should benefit from sitting in front of the vent (I think).
Im also worried what the safe operating temperature of the smoker will be. I've used the search bar and have read several threads on the subject but everyone seems to have a different answer. I have read anywhere from 190 degrees to 250 degrees. I just don't want this box to turn into the largest Roman candle that anyone has ever seen.
I needed a screen for the vent and decided to sacrifice the wifes file holder... I will get around to telling her, eventually.
...Considering it a necessity for the greater good. She may not agree.
I then shut both vents down completely, the only draft would have been from the roof opening. After 3 1/2 hours with the vents completely closed the tray looked like this. Hopefully she will be this consistant with the propane.