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Thread: 1"ceramic blanket under sheet metal not brick for fire box ?

  1. #1
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    Default 1"ceramic blanket under sheet metal not brick for fire box ?

    I have a bunch of 1 inch thick x 2 ft. high ceramic insulation on hand. I'm thinking of lining my fire box with ceramic insulation and then a decent gauge sheet metal (also on hand) in lieu of fire brick. with the goal of Keeping rig light (rollable).

    Anyone noticing a decrease in their boil by not having firebrick?
    Last edited by woodguyrob; 08-03-2019 at 08:45 PM.

  2. #2
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    I used 304 SS on mine and ended up burning it up after a couple seasons.
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  3. #3
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    Sheet metal on the fire side of the insulation will never hold up (you would be lucky to get a month out of it), if wood fired you need at least half bricks. Oil and gas fired (propane or natural) just the insulation would be fine.
    Last edited by maple flats; 08-04-2019 at 07:23 AM.
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  4. #4
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    Quote Originally Posted by woodguyrob View Post
    I have a bunch of 1 inch thick x 2 ft. high ceramic insulation on hand. I'm thinking of lining my fire box with ceramic insulation and then a decent gauge sheet metal (also on hand) in lieu of fire brick. with the goal of Keeping rig light (rollable).

    Anyone noticing a decrease in their boil by not having firebrick?
    Looks like i'll be picking up some fire brick! Thanks Super Sapper & maple flats!

  5. #5
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    You will only need brick where the wood will touch. (firebox only) the insulation should be good everywhere else. Just multiple layers. This is how our Vortex is,
    54 Acres bought in Sept 2010, hope for a lot of fun
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