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Author Topic: BL 28 40 fire brick spacing  (Read 4035 times)

Super44

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BL 28 40 fire brick spacing
« on: November 02, 2017, 10:51:03 AM »

On our 3rd season now and I may have figured out an easy way to keep the fire bricks where they belong.  They tend to move when stirring the ashes and last season ended with them close together in the center and a large openings at the ends. This made getting the ashes to drop out the bottom something of a challenge.  For this season I used 1/2 inch X 2.5 inch or longer bolts with large washers placed in the gaps after I cleaned the boiler.  The longer bolts will help them stay put.  So far this season ( still pretty early ) it seem to be getting a better burn and the ashes are not pilling up like the first 2 seasons.  It is a fairly simple and cheap fix.



« Last Edit: November 02, 2017, 04:50:17 PM by Super44 »
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slimjim

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Re: BL 28 40 fire brick spacing
« Reply #1 on: November 02, 2017, 11:05:12 AM »

Good advice
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Crow

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Re: BL 28 40 fire brick spacing
« Reply #2 on: November 03, 2017, 07:51:24 AM »

I had that issue also, and I did something similar. After the bricks started to crack I replaced with the new style with built in spacers and that fixed the problem. But I find that it smokes more when loading than with the older bricks. I had the small bricks and there were more gaps for air to come up through. I think I get better burn times with the new style though.
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Super44

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Re: BL 28 40 fire brick spacing
« Reply #3 on: November 15, 2017, 09:04:22 PM »

It seems that keeping the correct spacing between the fire bricks has gained me 2 degrees on the incoming line and a LOT less ash issues.
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Revx1000

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Re: BL 28 40 fire brick spacing
« Reply #4 on: November 26, 2017, 08:49:47 AM »

Here is what I made ,I first tried 10 mm re bar  found it was to thin  used 19 mm spacing worked out just right . Also have no spacing at the back of the heater ,last brick. What I found was I was getting ash in the air injection hole .now with no spacing at the very back I get little to no ash in there . This is my 3 rd season with no isues . The frame shows no signs of bending ,very easy to pull out for cleaning
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Bud Man

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Re: BL 28 40 fire brick spacing
« Reply #5 on: December 03, 2017, 07:05:05 PM »

I made something like Revx but it warped and twisted due to the heat. For this year I put 3/8 carriage bolts between the bricks. So far so good.
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Livin' on a long and lonesome highway east of Omaha.