Help getting fire bricks in firebox - Page 2
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  1. #26
    Join Date
    Dec 2013
    Location
    Ontario, Canada
    Posts
    260

    Re: Help getting fire bricks in firebox

    Those bricks you have are the right product for the job, you just need to go to a masonry supply store and buy fire glue. Fire glue is a premixed adhesive that can withstand the high temperatures unlike regular cement based products. The company that I work for built a wood burning oven in a bakery that ran 6 days a week for 8 years before the fire bricks started to deteriorate and needed to be replaced. BTW I should add that i'm a mason by trade.
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  2. #27
    Join Date
    Oct 2016
    Location
    Delavan WI
    Posts
    104

    Re: Help getting fire bricks in firebox

    Quote Originally Posted by motolife313 View Post
    He said use some hi temp cement mortor in between the blocks. Do u think cement holds to stainless steel good?
    Yes the product I was talking about hardens like glass if you don't get it off of your trowel you have to grind it off once it hardens overnight.

  3. #28
    Join Date
    Nov 2014
    Posts
    4,790

    Re: Help getting fire bricks in firebox

    I couldnt find the fire glue called 2 places.

  4. #29
    Join Date
    Mar 2005
    Location
    Under a Rock
    Posts
    2,223

    Re: Help getting fire bricks in firebox

    Quote Originally Posted by motolife313 View Post
    I couldnt find the fire glue called 2 places.
    Ask for refractory cement it comes premix and bagged.
    they also make something similar in a tube/ caulk gun style.
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  5. #30
    Join Date
    Jul 2014
    Posts
    1,591

    Re: Help getting fire bricks in firebox

    I can't remember the name brand of fire brick cement we used in the boilers ,but it came dry in a 2 1/2 gallon size bucket,we added water too it until it was almost soupy , dipped the brick on the edges we wanted bonded and laid them up with almost no mortar gap (1/8" maybe) they stayed in place nicely for years .

  6. #31
    Join Date
    Feb 2014
    Location
    Iowa
    Posts
    347

    Re: Help getting fire bricks in firebox

    Quote Originally Posted by gxbxc View Post
    I can't remember the name brand of fire brick cement we used in the boilers ,but it came dry in a 2 1/2 gallon size bucket,we added water too it until it was almost soupy , dipped the brick on the edges we wanted bonded and laid them up with almost no mortar gap (1/8" maybe) they stayed in place nicely for years .
    I had a mess trying to use it as it came (pretty mixed greenpatch), it was about consistency of peanut butter. These were partial pails left over from a job, which was given to me free. Undoubtedly it had lost some moisture from prior use, but everything I could find said not to thin, or thin very little.
    The brick sucks the moisture out so fast, and I was trying to butter the faces. I did not end up with a desirable end result.

    I ended up finding a video on YouTube of a manufacturer doing it exactly as you described (the cement literally dripped off), after I was mostly done! Needless to say the last little bit I had to do went A LOT better!

    I wouldn't have thought to thin it that much from the experience of laying block.
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  7. #32
    Join Date
    Feb 2011
    Posts
    73

    Re: Help getting fire bricks in firebox

    Dural 452 gel construction adhesive. Use it all the time in fireplaces.

  8. #33
    Join Date
    Jan 2015
    Location
    Catskills NY
    Posts
    51

    Re: Help getting fire bricks in firebox

    Nice Job moto, Did you make sure you calculated the space taken up by firebricks into your firebox size? Looks as tho theyre taking up a lot of real estate. Its important to the overall function of your reverse flow...I couldn't add bricks to mine B/C I didn't think about it before my build. However it seems to function ok without them, even using it now at our ski center on bitter cold days. Just wait till you use it and enjoy all that hard work with some awesome smoked meats...Good job!

  9. #34
    Join Date
    Mar 2014
    Posts
    3,112

    Re: Help getting fire bricks in firebox

    Concerning fire boxes in general......I don't think having the fire right on the floor (of any style of cooker/smoker fire box) is the best of ideas. What I like to do is to build a removable grate system that holds it 3 to 4 inches off the floor. And then put the air inlet damper as low as possible on the door. The idea being is that you want the inlet combustion air to come in and be able to go up thru the fire.

  10. #35
    Join Date
    Mar 2005
    Location
    Under a Rock
    Posts
    2,223

    Re: Help getting fire bricks in firebox

    Moto,
    put some thought into getting that thing out of the garage also.

    mine was BALLS heavy and had to weld D-rings on and hoist it with a chainfall. those bricks and 1/4" plate are heavy.
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  11. #36
    Join Date
    Jan 2013
    Location
    ...Shoulder of Orion...
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    3,461

    Re: Help getting fire bricks in firebox

    @ motolife313 - after your bricks are integrated, apply Heat Stop 50. Many forges use HS50 to line their castable fire bricks.
    "Discovery is to see what everybody else has seen, and to think what nobody else has thought" - Albert Szent-Gyorgyi

  12. #37
    Join Date
    Feb 2012
    Location
    Sparks, NV
    Posts
    3,129

    Re: Help getting fire bricks in firebox

    Moto, my fireplace has 2 clips (one on each side) to hold the last installed fire bricks in place. No glue.
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  13. #38
    Join Date
    Nov 2014
    Posts
    4,790

    Re: Help getting fire bricks in firebox

    Needs some suggestions again, I don't really wanna put brick in the door because it will not work at easy since I wanna put holes in the door and want the door to be protected by some insulator. I'm building a stainless frame to hold in the some kind of concrete motor mix? I would then put a layer of 1/8 or 16 gauge sheet over to protect it and I plan to do the same over the insulating bricks I have so they will stay protected. Name:  image.jpg
Views: 95
Size:  55.9 KB it's not finished yet. It's 1/4 1.5" angle and 5/16 door. Thanks a lot if u have suggestion Name:  image.jpg
Views: 95
Size:  51.9 KBthis angle takes forever to cut at a 45 degree angle

  14. #39
    Join Date
    Nov 2014
    Posts
    4,790

    Re: Help getting fire bricks in firebox

    Quote Originally Posted by cloudman View Post
    I started looking around at the Smith Sharpe website and noticed they have a bunch of products for pizza ovens, outdoor fireplaces etc. They sell KILN FLOOR shiplap tiles - 12x12, 12x18, 12x24 ....
    I tried looking for them and didn't see them. I seen the fiberfrax, I looked ok.

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