OK I finally got my tank this is going to be a VERY slow build of a 250 Gal. R.F. trailer mounted smoker as I have too many projects at this time ( boat , jetski, two trailers one for the smoker other personal ) I'm saving up to buy enough metal to build a couple trailers and get my other projects going I will post QVIEW pics as this biuld progresses as ya'll can see I have started laying out the doors
new 250 R.F build
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Thanks Dave yes I will definitly measure more than once just laying it out so far to get an idea of how things will look I still have to drain her out agian and level her out to get a better look and finalize the measurements. more pics will follow as it progresses i can't wait already ordered hinges and spring handles
Had time to do some work on my build. I got the doors cut & framed, hinges on, fire box opening cut ; left room for more cutting if needed ( learned this after cutting the door height twice ) fire box cut and welded up, door cut ,framed, hinges welded on bracing partially installed in the f.b. door.
Hey Raptor yes the hinges are from KCK I also used them on the doors love them best of all they are greaseable. Thanks everyone for the compliments it makes me that more pumped up to work on it, now off to order more steel to fab up the grates, grate supports, charcoal box and box support, gonna make everything slide out (easy access ).. before I go for now I have a couple questions
first is I used the pit ratio calculator and came up with the dimentions of 28"w X 6" t for the f.b. to pit opening which is for a rectangular opening. Though I realise I wont be able to get a perfect rectanguler opening and it really doesn't give options for a quarter round opening ( or I don't know how to get this dimention) I do have room to move my f.b. up about an 1" if needed (which I think I need to ) my question is can I use these dimentions by following the contours of the tank on the sides without the 1" of extra height or do I have to raise it to compensate for the sides ( tank contour )
second question is I plan to have my R.F. plate about an 1" above my f.b. with about a 1/4" drop towards the non f.b. side now IF I measured everything correctly ( I hope so ) this leaves me with about 4.5- 5 " from the bottom of the grates to the top of the r.f. plate is this too close?? or about right?? I do plan on using the f.b. to tank cut out peice as an adjustable damper to help control airflow as well as a damper in the exhaust stack.
thanks in advance for all your advise and recommendations
Just my .02 Hope it helps....
That is the way I built mine, 4.5 in from the grate to the RF plate. And it works great.
Me Personaly, Once I cut my FB to cookin' chamber out, I used the same sq in. on the end of the RF plate. And also used the same sq in. on the exhaust stack.
No Problem Moparman, I actually made my exhaust stack a little longer than needed. I wanted to get a good draw threw the CC and I can always slow the draw with my damper. It's easier to slow the draw than speed it up. Once the heat leaves the stack there is no more draw!
Not sure if this will help or not.
If you had a 30" dia tank and the top of the fire box was 5" up from the bottom of the tank, you would have 77.4 sq in of area. Here is a link and a pic of a circle calc that I use. Select radius and segment height, then you can look at the area in the lower boxes. I just play with the segment height number till I get the area I want.
What is the aprox. dia of the tank you are using?
I get a figure of 9 in tall and a 30 in dia tank to = 178 s in of area.
Thanks Tom I give this a visit,I wanted to ask and verify before i actually made the c.c. openeing. I will use this calculator to get my measurements, I had forgotten I had bookmarked this site once again thanks
Thanks the only tools I have are a snap-on 140 amp welder, 7"angle grinder and a 14" metal chop saw, though I am a body man by trade I do love building things as a hobby. I just bought one of them there taiwan made plasma cutters today off of ebay I hope it is a good $300 investment
Hey Tom I'm still a little confused as to the measurements in the calculator I admit I'm not exactly sure as to what I'm looking at which makes it even more confusing but if I measure 9" up from the (inside ) bottom I'm not to sure I'll have enough room. I seen in the example you provided you gave a radius of 15" and yes my tank is 30" in diam. now at a height of 9" tall for the opening that is a little under half of the 24" height of my fb seems like a lot to cut out of the fb