Background:
A smokeless pit works by air coming in from the bottom and feeding the fire. Some air gets trapped in between a metal ring and the stone blocks. It gets heated and forced up, which shoots it out of holes in the top of the ring for “secondary combustion”, burning off the smoke.
Materials:
A. 34 curved wall tumbler blocks ($2.28 each)
B. 3 bags of gravel ($6.00 each)
C. Fire pit ring ($100)
D. Landscaping fabric ($30)
E. Landscaping edging ($28)
Optional:
A. Cement caulk or quick set ($10)
B. 36 misshapen blend pavers ($.78 each)
C. A bag of decorative stone for the border
D. Polymeric sand ($30)
Tools:
A. Shovel
B. Tape measurer
C. Wheelbarrow
D. Drill
E. Metal borer drill bit 1/2 - 1 in. diameter
Steps:
Buy supplies
lay out the stone in the spot you want it
Dig a circle 1-2 inches wider than the stone line
Remove the stone and dig out ground
Tamp it down and level it, slightly away from your foundation
Lay landscaping fabric
Lay landscaping retaining wall
Lay 1-2 bags of gravel. Level and tamp
Lay ring again and border around the ring. Polymeric sand the border if you would like.
Stack the stone blocks. Remove 1-2 (I changed my mind from 1 to 2) blocks from the bottom row for air intake
(Optional) cement caulk or quick set gaps in the top rows
Assemble the metal fire pit ring
Drill holes in the top of the ring, about 2” from the top lip. I did 1/2” diameter holes every 2 inches. I’m not sure if that is too few of holes. We’ll see.
Conclusions:
We’ll see if I have enough holes in the ring. I think that it will burn fairly cleanly from the big holes in the bottom and the less holes will help shoot the air further into the center of the fire.
I don’t believe I made enough of a gap between the ring and the stones but time will tell.
Overall I like how it turned out!
Smokeless firepit install
Finished product with a Breeo “Smokeless” fire pit insert.
Probably posted here a lot but DIY smokeless fire pit
Smokeless Firepit
Videos
I had a wood burning firepit installed with a smokeless insert recently, but i don't know if it was done correctly. Looking at online pics of some examples I see some smokeless firepits that have at least 1 brick removed from the bottom for air flow and others that don't. Mine doesn't have any openings at the bottom. Does this make a difference?