Firebox insulation

Discussion in 'Smoker Builds' started by fourthwind, Aug 23, 2010.

  1. fourthwind

    fourthwind Master of the Pit OTBS Member SMF Premier Member

    I am building a 250 gallon RF trailer unit.  Yesterday my partner and builder got a "smoking" deal on some sheets of 3/16 steel plate.  I want to use it to do a double wall with an insulater between the layers.  Has anyone used sand as an insulater?  I know it's not lite weight, but it's cheap, and I would think it would do well.  Any comments?
     
    Last edited: Aug 23, 2010
  2. tom37

    tom37 Master of the Pit OTBS Member SMF Premier Member

    Congrats on the steel score.

    I'm not sure if the sand would insulate the box or just be a heat sink.
     
  3. bamaboy

    bamaboy Meat Mopper SMF Premier Member

    If you could find ceramic fiber called Cerwool it would do the trick.we use it here in foundry operations around alot of serious heat.it starts out around  2 inches thick but compresses to about a 1/2 inch.just my 2 cents
     
  4. eman

    eman Smoking Guru Staff Member Moderator OTBS Member

    Cerwool also known as rock wool or mineral wool would be the ticket.

     Just make sure and wear sleeves and gloves and a dust mask when handleing it.

     Makes the itch from fibrglass seem like a bubble bath.
     
  5. beer-b-q

    beer-b-q Smoking Guru OTBS Member

  6. fourthwind

    fourthwind Master of the Pit OTBS Member SMF Premier Member

    Thanks for the replies.  We start cutting metal here in the next couple day's.  I will look for this stuff locally.  It appears to be pretty economical as well.
     
  7. jirodriguez

    jirodriguez Master of the Pit OTBS Member SMF Premier Member

    Didn't BBQ Engineer do an insulated build when he built Iron Maiden?
     

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