Smokeless fire pit introduction

I wanted to go over features that I built into my smokeless fire pit. I used several design features of the commercial smokeless fire pits such as the Solo and Brio.

Using refractory mortar to seal up the cracks in-between the retaining wall blocks is something I did that I don't see others doing. Sealing up the cracks helps make the fire pit smokeless because air is channeled from the bottom intakes so it creates good air flow so it heats as it rises.

Using a double wall in my smokeless pit also directs air from outside through the fire pit intakes around the sides and out of the fire pit metal ring holes. Most people I see don't do this. You can literally see smoke being re-burned. Most people leave the bottom of the metal fire pit ring open as they aren't made deep enough to go to the bottom. Ideally it would be best to weld more ring to the bottom of the metal fire pit ring, but I opted to put fire brick there so that when the fire pit ring eventually needs replacing, I don't have to add more to it. I also have the bottom on a slope, so using the firebrick here made more sense to me.

Having a center air inlet with diffuser in the smokeless fire pit helps it be smokeless in that air flows upward so that what smoke there is tends to go straight up. It also feeds the fire so that you get a very hot bed of coals which also helps with the smoke. The smoke also doesn't tend to follow you around the fire pit. This is a very important smokeless feature that is usually not done.

[HowToDoStuf]

Sounds like you are welI on your way. I used refractory mortar for everything in the fire pit as regular mortar can't take the heat. I used retaining wall cap blocks on top.

If you can do the intake in the middle also I highly recommend it. The double wall and the center intake are what the Brio and Solo pits do. They also go tall and not too wide. Take a look at one and you'll see what I mean.

[brianmorrison]

Thank you... I just decided to order the fire brick mortar. I'll get my fire bricks from Lowes. Do you have a video of how you sealed the bottom under the fire ring? A link to the video? I know I have to leave space between the fire brick and the fire pit retaining wall and mortar in between the bricks. I will not have a double wall, so I'm a bit worried how I'm going to seal it at the bottom with mortar. What size fire brick did you use?