First post. Been reading a while and lurking. Finally joined.
Just bought an Oklahoma Joe Longhorn from Lowes. I would have loved to have a Jambo, Lang, etc. etc., but I just can't afford it. This OJ is as much as I can afford.
I've already sealed the doors and seasoned it. Also built a firebox. Looking to do a 45 degree plate on the firebox to cook chamber inlet to help with the heat there and also looking into the best way to get the exhaust stack down to grate level at least.
My questions come out of using the smoker builder calculator. When I input the measurements for the cook chamber and the firebox I get some concerning numbers.
The firebox comes out at around 135% of the optimum size. Okay, probably not going to build a whole new firebox. BUT more concerning is that as close as I can calculate from actual measuring, my air inlet is right at 7.5 square inches. The calculator shows more like 15 or so square inches required.
Also, the calculator is showing that the opening from the firebox to the cook chamber is too large and that the exhaust vent is too short. As close as I can measure my exhaust it is approx. 9 to 10 inches short.
So, the biggest issue to me is the inlet on the firebox. Basically it is half the size of what the calculator specifies. What has anyone done to cure the inlet size to allow more air? Any tips or pics would be appreciated.
Now I've got the OJ I'd like to optimize what I have at least and this inlet size looks to be a real deficiency.
The firebox to cooking chamber sizing I can probably adjust with the plate/deflector I plan to put in. Also, the pipe length issue will probably be taken care of with extending the pipe down to the grate. So, really it is just the inlet that is a big concern.
Thanks for any help. I did do a search before posting. If I missed where this has already been covered please post a link to the thread.