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new heat riser design  RSS feed

 
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a small hole in every other brick(top and bottom) could be drilled 1 in deep and a steel rod 2 inch inserted as a pin for vertical stability then cracks and grooves filled with furnace cement.

Stacked
Only with out groves cut in them
26-Firebrick_clamped_together_in_a_hexagon.jpg
[Thumbnail for 26-Firebrick_clamped_together_in_a_hexagon.jpg]
 
Ever since I found this suit I've felt strange new needs. And a tiny ad:
Would you replace your oven with a rocket oven?
https://permies.com/t/90099/replace-oven-rocket-oven
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