Fire brick as liner in fire chamber

Horizontal smokers with a side firebox and tuning plates.
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bigbook
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Fire brick as liner in fire chamber

Post by bigbook » February 9th, 2017, 1:45 pm

Image. OK I've got this tank as my firebox and I'm leaning hard toward a lined box using fire brick and castable refractor cement. Has anyone tried this before??


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Re: Fire brick as liner in fire chamber

Post by Rodcrafter » February 9th, 2017, 3:43 pm

Hey bigbook is this what you're thinking of doing that on? I say that because if it is I'm thinking that the FB is already too small. I'm not trying to dash your plans but rather help you with them.


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Re: Fire brick as liner in fire chamber

Post by bigbook » February 9th, 2017, 4:52 pm

It's a 250 gl lp tank with a 80 gl tank as box



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Re: Fire brick as liner in fire chamber

Post by Stewart » February 9th, 2017, 7:13 pm

I used fire brick in my FB. I did the floor and 3 sides I didn't cement them in tho I used a piece of flat stock tickers strap them in I think it was worth it I also lined the floor of my warming box.



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Re: Fire brick as liner in fire chamber

Post by Rodcrafter » February 10th, 2017, 8:21 am

The sizes of those tanks should be fine, before the liner. I just get the feeling that the throat opening may not be sized correctly, causing you to make a hotter fire than should be needed is the main reason you're looking at doing this mod. If you don't mind let's run the numbers and see where you're at to start with. I'd be glad to help you with this, it looks like the throat opening for these size tanks is recommended to be 151 square inches. for 2 tanks meeting each other the throat size and shape should look like a football that is about 10.5" x 21". From the picture it looks like the throat is maybe less than half that. Then the baffle plate would also need to be high enough from the bottom of the main tank to allow the right amount of air flow.


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Re: Fire brick as liner in fire chamber

Post by bigbook » February 10th, 2017, 10:05 am

You are correct it's throat size it is 11 inches more or less .
I just winged it on size. Bad on me . But since when do we read the instructions. Right ..
Live and learn. ....
I might just switch to a reverse flow while I'm at it ,since I'm pulling the shelves out to do this I might as well jump in all the way .
With what I've got now I get decent temps but I do have to babysit it more than I like .
I'll probably take some flat plate and sqaure off the hole back towards the fire box

I still think fire brick at least on floor of firebox is a good thing. But I'll Punch numbers now
Thanks for the help.



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Re: Fire brick as liner in fire chamber

Post by Rodcrafter » February 10th, 2017, 8:10 pm

The FB is just barely big enough and fire brick on the floor is only going to make it smaller. The floor really doesn't get very hot.


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Re: Fire brick as liner in fire chamber

Post by Big T » February 10th, 2017, 9:25 pm

:yth:


Measure Twice.....Cut Three Times.

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Re: Fire brick as liner in fire chamber

Post by bigbook » April 11th, 2017, 8:54 am

Well I opened up the throat and added a paddle on the stack. (Frankenstein ) the pit . Running like a top holding temps and log burn is down . Now if I can fix that door leak im all good. Oh yeah paint new tires. Extension of trailer hitch. Storage bins ,hand sink., Disc cooker, fire extinguisher mounts etc..Etc etc...And time to do it all

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Re: Fire brick as liner in fire chamber

Post by Rodcrafter » April 11th, 2017, 3:55 pm

Yeah sounds like you're about done. lol


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Re: Fire brick as liner in fire chamber

Post by bigbook » April 11th, 2017, 5:29 pm

Rod. I'm in Jacksonville. My son goes to UCF I'll have to look you up next time I'm down that way

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Re: Fire brick as liner in fire chamber

Post by Rodcrafter » April 12th, 2017, 7:40 am

That is a great idea! You want to ride to the gathering next week.


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Re: Fire brick as liner in fire chamber

Post by bigbook » April 12th, 2017, 7:47 am

Family reunion next week takes priority so my life is not a living H##/ I would jump on chance to go but..I like sleeping without wondering when the payback would come.
Maybe we can get another gathering close to us again . Maybe we can get the southern members to get together .
I wonder just how many of us are in FL or GA. ??


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Re: Fire brick as liner in fire chamber

Post by Rodcrafter » April 12th, 2017, 9:17 am

I'm not sure but plenty


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