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Final design out for review, then to make some prints and get started.

What kind of channel do you guys use to create the gap on insulated FB's? Angle iron/square tubing/i-beam's?
thanks

Looks like I might go back to the 3rd version, with round Fb, but instead of using fire brick (245lb extra weight) and try to create an insulated tank. Weld up a round outer skin and use insulation. Seems like it should work. What gauge metal should be used for outer skin on FB? Thanks

Perfect, thanks very much.

Got a question, How do you roll/bend a sheet of 16-20 gauge steel into a cylinder? I'm thinking about insulating a cylinder firebox, and wondering if this would be somewhat easy to do at home. What would be the best gauge to use for the outer skin also? .06" thick? or thicker?

thanks

Thanks for the input. Would a damper help between the CC and the FB? going to have an additional heat sheild between the opening and the BF plate. I have seen a couple with the damper there.

What type of wheels/casters did you use? or where did you get them?
thanks

Does anybody use fire brick in there fire boxes? Would there be any benifit's? Buddy would like to do so, so I went back to version 2, resized the FB to accomidate the brick. It's getting pretty big. Here's a screen shot, I haven't updated the frame for the casters yet, still old design.

Quick ? on the fire box door? Can I just use a 1/4" plate for the door with a gasket on the one side to seal, or do I need to add 1/2" angle iron for the seal to sit up against, along with stiffening the door?

Thanks

Here's the latest design change, still have some things to work out.

I was searching Northern Tool catalog, they seem to have a number of differnt ones, including larger wheel's, ect... Here are some I was looking at.

Trying to source casters for a build, will need to hold about 250-350lbs. Would like them to roll on grass and be able to withstand cold winters outside. Was thinking of 2 8" wheels on one end, but need swivel ones on the other. Any suggestions? Thanks. Not to expensive.

Good point. Just got an e-mail from my buddie, we are going to change the FB to a circular one. We have a 3rd tank, so might as well cut that one up, and save $ on steel. He had some other good idea's, so I will be tweaking the desing over the next week or so.

Do I need more than the one air vent on the FB door? it is oversized currently.

Made some tweaks, have to finalize a couple of things yet. I seen another larger centerfeed RF that had a baffel on the inlet from the FB to the CC. Is that needed? Any other thoughts?

Thanks for the input. You guys have been very helpful.

- Another ?, Where do you guys get most of your bar stock/tubing/expanded metal from? We have a "speedy metals" and I need to see where else I can price stuff from.

Couple of ? - Another grate ?, on a 41" spread (I'm thinking the grate will be 41 x 18 for my bottom, and 41 x 15 o yr so on the top, do you need to put a center support on the frame? - on the BF plate location to bottom of the bottom grate, can it be closer to 4" so if I wanted to grill, I could us...

Got it. Thanks

Thanks for that info. Back to the baffel plates and spacing, is this more in line with what you where talking about? Still have to make some other adjustments. See attachment. (hopefully it shows up ok) On the 1st baffel plate/heat deflector, how long would you make it, and does it go all the way to...

Thanks for the info. Gizmo, I'll see how it works out. Shelve's, what thickness are they typically made from? 3/4 - 1" angle iron with expanded metal for grates? any other suggestions?

Made a little progress during lunch today. I still need to resize the door, adjust the door and front plate on the FB. Depending on where the tanks end radius's start, the main CC door may get smaller or bigger. I need to adjust the Baffel plate so it is 4" or so below the main grate along with it's...

? For gizmo, or anyone else. How high from the bottom of the tank should the BF plate be? Also, how far above the bf plate should the top of the meat grate be? If a 2nd grate is added, is there a specific height that should be? Chimney opening, is that about 2/3rd to the top of the tank? Thanks for ...

Going to switch dirrections, going to draw up this tank in a Horizontal, center feed, reverse flow design.

Thanks,
I wasn't sure if it would be different or not.
On with design # 2. scraping #1

My question has to do with the openings from the FB to the CC and then at the opposite end of the RF chamber before it enters the actual cook area. I have run the #'s on Feldons for sizing of the opening, it comes out to Ø10.29" with an area of 41.62sq". I can figure the opening for the FB, but what...