allangee t1_je76j9i wrote
I have the same style fire pit. A quick and easy solution is to get the drum from a washing machine and sit it in the middle. They're smaller than the inside diameter of the pit (usually) and very perforated. Air gets drawn down the sides of the fire pit and into the holes.
You can also borrow a hammer drill and buy a masonry bit. Drill holes through the blocks close to the bottom of the pit.
Nigel_11 OP t1_je7dv9w wrote
I have a hammer drill so I may do the latter. How many holes around the perimeter base would I need? Probably assuming a 1/2” bit.
allangee t1_je7el4o wrote
Circumference would be about 94" -- so a dozen to 15 would be plenty. I would calculate how many I wanted and even spacing for them (one per brick, two per brick, whatever) and then drill maybe half of them, light a fire and see how it burns.
On the other hand, you can't really have too many, so you can do them all at once if you want.
I'd get a small piece of plywood so you can lay the drill on it's side and just push, instead of having to hold it up.
MollyMuncher t1_jecoyys wrote
If you’re going this route, one trick I use: start the hammer drill on drill and scuff the stone at the whole a bit, eventually switch to hammerdrill and keep your finger on the trigger as light as possible. Those two combined will increase your odds of not skipping the bit and marring the new brick
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