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I kept a log of that with my GOSM once, this was last summer so the ambient temps were high and the average smoker temp was about 230*, anyway I quit writing in the log after 42 hours and it probably went 4 or 5 hours more. Oh yea, it was a 4.7 gallon tank.
Depends on the size of the tank.
The size of the the smoker.
Insulation value.
Wind speed.
Ambient temperature.
Damper position.
Smoker temperature.
Smoker load.
There are a lot of things that can change how much you go through.
- outside temp
- what kind of smoker
- any mods done to the smoker
- what temp your cooking at
- are you peeking a lot
- rain
- wind
- sun
That being said I average over 50 hrs on a 20 lb. tank.
Hey SB, I just have a GOSM Widebody that is uninsulated but when I was tracking my usage it was summer, probably 80* - 90* outside and I got about 45 to 50 hours out of a 4.7 gallon tank. The only mod I have done that might have helped with the usage was I put a smaller burner in it to get lower temps but while I was tracking I was averaging 230* - 240*.
I had the burner in the cabinet at first, but it would just go out on me sometimes .....Some others on the site thought it was starved for oxygen, so I moved it to where the top of the burner is even with the bottom of the smoker......I haven't had any problems with that in a while, but now I'm seeing by everyones post I still maybe having problem.....I'm thinking that I will have to start documenting my time and temperature just to check and see where I'm at on fuel consumption......Thanks everyone for the information ShoneyBoy