Ok so I have this smoker that I got at Bass Pro - http://www.basspro.com/Masterbuiltreg;-Two-Door-Propane-Smoker/product/10226688/146858?cmCat=CROSSSELL_PRODUCT and I purchased the AMNPS from Todd who has been a great help however I am still having a issue. I start the AMNPS and let it burn for 10 minutes or so and have nice glowing coals and smoke but after putting it in the smoker it goes out in 20 minutes or so. I am cold smoking so the propane burner is not on and sucking all the oxygen out of the air. Top vent is all the way open and I have tried everything from sitting the AMNPS directly on the burner where the chip box would set to moving it up to the lowest cooking rack in the smoker. I also have no water in the smoker so the humidity should be fine as I live in Colorado. I have also gone as far as removing the lower door altogether and trying it without that to maximize air flow. The outside temp was about 50 or 55 degrees. Any suggestions would be great. I lit it with a torch and also with a piece of the white weber cube for starting charcoal and both ways lit exactly as Todd said it should but still went out. Oh and I was using the maple wood pellets from Todd as well. I am looking for any ideas that you guys may have or any mods you may have made to fix this issue or even what I could be doing wrong. I did some searches on here but only found limited stuff and nothing directly related to my issue.