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Insulation Question

Discussion in 'Fridge/Freezer Builds' started by smokingnd, Nov 14, 2010.

  1. smokingnd

    smokingnd Smoke Blower

    I have a double door dough proofer from a pizza hut, just wondering what the physical characteristics of polystyrene and polyurethane insulation are.  Is polystyrene like styrofoam, the little beads?  Mine is filled with a dense yellow foam.  Any advice would be greatly appreciated.
  2. tom37

    tom37 Master of the Pit OTBS Member SMF Premier Member

    Sorry I really don't know but I am interested in your findings.
  3. tjohnson

    tjohnson Smoking Guru Staff Member Moderator Insider OTBS Member SMF Premier Member

    Polystyrene is the little beads and Polyurethane is the yellow foam. 

    Polystyrene is not good for heat resistance.  Poor heat resistance!

    Polyurethane is very good for insulating both heat and cold.

    Both can put out some toxic fumes if burned, but i don't think your smoker will hit those temps.

  4. smokingnd

    smokingnd Smoke Blower

    Thanks TJ, that's what I was thinking just looking for other opinions as well, thanks for the info.