this is no joke. call the sled shed in revy. i used this can @ 2000ft and all the way up to 8000ft. the first few hrs it burbled a few times but since then it ran perfect. really easy to get the muffpot in and out. i think i have about 300 plus miles on this can. my buddies are super jelous of this set up, cooks a frozen ring of coob in 30 mins. i was skeptical but now im happy i picked it up, its the thing can with a muffpot built in, nothing to be confused about the exhaust flows behind the oven area, plenty of room back there. oh and the oven area is sealed from the exhaust for those of you that are wondering. pick one up you wont be dissapointed