I've done quite a few smokes with both the AMNS and the AMNPS and have had great success, but 2 things pop up: 1) during hot smoking, how do I keep the product from flaming, and 2) providing enough draft (airflow) to keep it burning. I wondered about an external application: Went to Home Depot, looked at all the vent stuff and nothing clicked. Walking out, I noticed a display... it clicked... what if..... I exterior mount the unit inside a Metal Mailbox! Mount it, drill holes in bottom, screw and seal box to smokehouse, use a 2" hole drill through the box and plywood, then seal around it and in the hole between the box and plywood. Adjust your draft by opening the door a little at a time, plus the holes already in the bottom of the box. Enclosed, metal, adjustable draft, exterior, no flame-up worries! If it's 110° outside, you probably ought to reconsider "cold" smoking anyways, lol. But,for either cold or hot smoking, not a problem! Just run the propane burner inside if you want to hot smoke without fear of catching the pellets on fire. No propane for cold smoking. If you want, toss a chunk in the iron frying pan too for extra goodness, or fruitwood sticks, etc. Fits perfect! Hmmm... maybe a 2" hole in the bottom, with a flap to open or close with.... like an electric circle box cover plate with 1 screw it to swivel on... Now, do I want a mailbox on the outside of my smokehouse? ABSOLUTELY! Mad Scientist Smokaholic Pops over and out for now, until I test it out!