Well I have been busy in the shop making myself a propane smoker, ( Time well wasted ) This is my first build and I am quite happy with the build with one exception. I am unable to get sufficient air in the tube to mix with the propane for complete combustion. It is pretty close to good at very low levels but at higher levels it is a no go. I fired this bad boy up today just to see what would happen and how it would perform. I was able to get a steady 170 on a pretty low flame and held it for one hour. I also hit the 250 mark and easily hold it as well. I am quite sure if I wanted 500 is also quite achievable but for this purpose not needed. In the picture you can see the burner I have selected. I have the damper wide open allowing the most air it can take and as you can see there is sufficient room around it to get more air at this point . The real problem will surface when I install the bottom in this. I will be leaving a one inch gap between the burner and the bottom all the way around. The top of the burner will also sit 3/8 " above this bottom That will cut down on the combustion air a little I am sure.
I am sure others have had the same issues with designs you have made. How have you overcome? May be even a store bought design has had combustion issues for you
At this point I am not even sure that this is the proper burner for what I want to do. The sales man I bought it from on line assured me it would do well for my purpose. Here is the link to the burner that I have.... what do you think
I would greatly appreciate any advise you could share with this rookie builder