Smoker insulation?

Discussion in 'Other Builds' started by boozzer, Feb 24, 2012.

  1. boozzer

    boozzer Newbie

    OK been awhile but finally got my smoker in the shop and ready to start welding and had a few questions to run by you all. Insulation, I leave in Nebraska so the weather changes every 10 min. Here is what i am thinking. in stead of going with 1/4" Plate I am going to go with a 3/16" with water heater insulation then a thin plate for the exterior for the smoke box. 1/8" for the lid the same way and the Fire box will be 1/4" with no insulation. Thoughts? on water heater insulation or is there something that might be a little better heat reducer or more economical? you can view my plans on my profile.
     
  2. daveomak

    daveomak Smoking Guru OTBS Member SMF Premier Member

    Boozzer, morning....  My 2 cents....  3/16" with insulation and a skin is overkill...  think about 12/14 gauge with 1" rockwool insul.... put the  money in a really good insulation... then skin with something light... 26 gauge or so....  while at it, insulate the firebox... The skin will be difficult to weld so I would use self drilling screws and high temp silicone sealant... 

    Just throwing out some ideas.... Dave
     
  3. boozzer

    boozzer Newbie

    thank you Dave one thing I should of mentioned. This will be a traier unit made out of a old pull behind air compressor. didnt know if that would make a difference
     
  4. About Selecting Thermal Insulation

    A material's resistance to temperature and its ability to block heat are important factors to consider when

    choosing thermal insulation. R-value measures the material's capacity to slow heat flow; the higher the R-value,

    the better the material insulates. The chart below shows R-value for 1" thick insulation. To calculate the

    R-value of additional thicknesses, divide the material's thickness by its K-factor. K-factor measures the heat

    flow rate from one side of the insulation to the other; the lower the K-factor, the better the material insulates.

    Use the chart to find the insulation material that best suits your application.

    If insulating below 0° F, use polyethylene, foam rubber, aerogel, or polyimide insulation.
     

    [​IMG]

    About Selecting Thermal Insulation

    A material's resistance to temperature and its ability to block heat are important factors to consider when

    choosing thermal insulation. R-value measures the material's capacity to slow heat flow; the higher the R-value,

    the better the material insulates. The chart below shows R-value for 1" thick insulation. To calculate the

    R-value of additional thicknesses, divide the material's thickness by its K-factor. K-factor measures the heat

    flow rate from one side of the insulation to the other; the lower the K-factor, the better the material insulates.

    Use the chart to find the insulation material that best suits your application.

    If insulating below 0° F, use polyethylene, foam rubber, aerogel, or polyimide insulation.
     

    [​IMG]

    About Selecting Thermal Insulation

    A material's resistance to temperature and its ability to block heat are important factors to consider when

    choosing thermal insulation. R-value measures the material's capacity to slow heat flow; the higher the R-value,

    the better the material insulates. The chart below shows R-value for 1" thick insulation. To calculate the

    R-value of additional thicknesses, divide the material's thickness by its K-factor. K-factor measures the heat

    flow rate from one side of the insulation to the other; the lower the K-factor, the better the material insulates.

    Use the chart to find the insulation material that best suits your application.

    If insulating below 0° F, use polyethylene, foam rubber, aerogel, or polyimide insulation.
     

    [​IMG]
     
  5. Sorry about the above guys.

    It will not let me paste the chart of most insulation types.
     
  6. If anyone can help me i have a chart of all the insulation type and values. It does not like the table.
     
  7. [​IMG]
     
    Last edited: Mar 1, 2012
    jgwellwood likes this.
  8. The 6th time is the charm. Mineral Wool wins.
     

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