Great looking smoker
@Skimafia
I have an older Miller 180 that looks near identical to your 211. I used it, and my Lincoln Powermig 256 both, on my last smoker build.
I got the bug to build a bigger smoker last year.
Having an engineering background, I did the typical engineer thing and went full-retard with the design complexity and build quality. It's a little much just to cook for me and the wife.
I'm particularly proud of my door design. The door weighs 200lbs, yet the counterweight and linking geometry allows it to be lifted with 15 lbs of force. Once the door is up, the force applied by the counterweights, via the linkage keeps the door up with no props or struts. It takes 15 lbs of force to lift the door, it balances at the mid point, and it takes 15 lbs of force to pull the door back down.
It has 2 cooking grates. The lower grate is 3ft x 8ft, the upper grate is 2ft x 8ft.
My design doesn't lend itself to a external manifold like
@Skimafia used, so mine uses an internal type, that basically extends the smokestack down into the cook chamber, stopping just above the lower grate.
I fabricated the trailers myself as well. Also overkill, I used 2"x4"x3/16” steel tube. Overall, it's 16ft long and 3000lbs. I used a set of 2, 2000 lb ea leaf springs for the suspension. Since the smokers weight is 75% the leaf spring capacity, it has a fairly soft ride on the highway. Alot of trailer smokers are over-springed and ride rigid Harley.
Unlike the typical smoker made from an old propane tank, I fabricated the cook chamber from 1/4" steel plate.
Myself and
@Skookum did a shitload of lifting, plasma cutting and welding on this bitch.
It Cooks great, but is a little overkill for me and the wife.