GOSM Heat Spread

Discussion in 'Propane Smokers' started by superdave, Jul 21, 2008.

  1. superdave

    superdave Smoking Fanatic

    Has anyone tested the heat spread between the upper and lower racks? After a couple of stacked smokes I was noticing that the top rack was getting brown faster than the lower but thought it must be due to the smoke accumulation at the top. In any event, when cooking multiple racks of the same food I was curious how much faster one part of the smoker may be cooking than the opposite end of the box.
  2. pineywoods

    pineywoods Smoking Guru Staff Member Administrator Group Lead SMF Premier Member

    As heat rises it usually hotter on the higher racks if smoking the same type meats I usually rotate racks about half way thru the smoke.
  3. jfoust

    jfoust Smoke Blower

    Haven't noticed any big change in temps, but like Pineywoods said, I rotate racks occasionally during a smoke. I keep meaning to check the temps across the racks just sort of for my own info, but never really have gotten around to it.
  4. superdave

    superdave Smoking Fanatic

    I was thinking about mounting another thermo in the door down by the water bowl to see what the bottom rack cook temp was compared to the middle rack where the stock thermo is located.
  5. justsmoke2

    justsmoke2 Smoking Fanatic

    I checked mine but it has been awhile since I did it. I normally only use the the top 2 racks so the difference wasn't that great. If memory serves me right I had like a 20 degree difference from top to bottom. When I did 12 butts in Feb. the top was done way sooner then bottom rack.
  6. richoso1

    richoso1 Smoking Guru OTBS Member SMF Premier Member

  7. flash

    flash Smoking Guru OTBS Member

    Piney is "right on". I actuall have two gauges in my GOSM and notice as much as a 15º difference between the middle and upper racks. I tend to put the larger items, as long as it is not chicken, on the highest rack so it gets done about the same time as the smaller foods on the lower racks.
  8. superdave

    superdave Smoking Fanatic

    Now that you guys are a 180 degrees from Rich's findings, I'll only cook on the middle rack from now on! [​IMG]
  9. pineywoods

    pineywoods Smoking Guru Staff Member Administrator Group Lead SMF Premier Member

    I noticed Rich has the Big Block and I have the Wide Body don't know if that changes things or not I only have a top vent. On mine I find the top rack about 20* hotter than the bottom rack. Oh and I won't see 67* outside till about Nov. [​IMG]
  10. flash

    flash Smoking Guru OTBS Member

    That is odd, being that hot air rises [​IMG] Of course if you leave the top vent open ????
  11. superdave

    superdave Smoking Fanatic

    I think the science question would be, Is rising hot air hotter than fire? Am I hotter if I stand 1 foot above the campfire 4 feet above the campfire?
  12. davenh

    davenh Smoking Fanatic OTBS Member

    If you were over it in a 4 foot box with a small vent on top...4 feet [​IMG]

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