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  1. fourthwind

    Newbie attempting to build a 100 gal propane tank RF

    Looks like a good start.  Must have been a fun job cutting with the grinder!  I would weld the strap on to the door before you cut it loose as well.  
  2. fourthwind

    Newb

    Unfortunatelty the area of two 4's does not equal one 8 when it comes to pipe.  I would go with dual 5" at about 50 to 60 inches in length each.  Going to make for a tall stack!
  3. fourthwind

    Newb

    I have seen plans where people have put diverter plates for warming boxes on the RF plate end, but have never done one like that myself.  We install them on top of the firebox, but you will want to put about 2 inches of insulation between the firebox and the bottom plate of the warming box.  You...
  4. fourthwind

    Need some help with my revese flow smoker

    An easy experiment would be to just put a piece of metal off the end of the RF plate and choke off some of that extra space. Since you made the stack long enough, it should work fine.  dropping the internal stack level down to the grate level will change the internal airflow and the flavor of...
  5. fourthwind

    Need some help with my revese flow smoker

    Ok here is my two pennies worth of input.  As a general rule you want double the inflow as you want the outflow.  Since you are using 3 inch pipe you have about 7 sq inches, so you have those numbers if your inflow is 15.  What the excell sheets dont tell you in the gap on the end of your plate...
  6. fourthwind

    Newbie attempting to build a 100 gal propane tank RF

    Just fill it up till it's overflowing, drain then cut, then burn.  I think one of the key parts is not letting the leftovers attached to the tank walls have time to off gas.
  7. fourthwind

    Newbie attempting to build a 100 gal propane tank RF

    Looks like a good start.  be sure to burn that tank out before you attach it to your firebox.  
  8. fourthwind

    Smoker Build advice...

    I agree, go with the second layout.  A properly built offset will work much nicer than what you were dealing with.
  9. fourthwind

    Newb

    Yes, I get a clean burn.  The key is not having wood splits that are too large for the smoker.  If your not getting a clean burn then go to smaller splits (Diameter wise) there are a few excel or website calculators  out there, and the basic calculations work well.   The calculations are based...
  10. fourthwind

    Newb

    Every smoker is different, and some quite honestly will not do it due to the design, but with a good coal bed you can "load" the firebox with wood and extend the time between fuel loads.   It takes practice and knowing your pit, but I can get 2 to 3 hours on a set of sticks.  Now unless you have...
  11. fourthwind

    Newb

    What he is talking about with gravity feed is a charcoal chute like some stand up charcoal units use.  In my experiance once you learn how to load the firebox, you can get extended burn times without the necessity of this.  You can also use electronic "stoker" devices which use small fans and...
  12. fourthwind

    Ihave been smoking awhile, time to build one from scratch, need idea's

    Welcome to SMF!   I would put it off the back or at one end.  Underneath will make for a whole host of problems.  The compressor tank is going to be relatively thin metal, so it will conduct or disperse heat pretty easily.  Just my 2 cents, but off one end or the other will be easier for stoking...
  13. fourthwind

    Newb

    Ok so based on those numbers, here are the perameters you should work towards. 1.  Firebox 36 inches square 2.  Firebox to Cook chamber opening 50 to 60 square inches 3.  Use 3/16 or 1/4 plate for the baffle and make sure it is sloped down and away from the firebox about 3 to 5° to your...
  14. fourthwind

    exhaust opening

    The length and diameter of the exhaust has to do with how much airflow you get through the smoker.   Hot smoke chases cold smoke therefore the longer and fatter the tube outside the cook chamber the faster the flow.  The formula's that folks have come up with are from experiance through either...
  15. fourthwind

    Newb

    This is one heck of a project your startin, and I am sure it's bit daunting.   We always mount the fireboxes on the end, so if it's a side mounted firebox you want then I can't help a lot.   Reverse flow is all about the balance of airflow.  Everything from the inlets to the exhaust stack needs...
  16. fourthwind

    Patriot 30" with a firebox grill!

    Thanks man!  As a cooker, I really designed these to be user friendly.  My welder does the hard work turning my science into a work of cooking art.  Really been fun seeing our smokers starting to hit the market and get noticed!  Love the Q views of the grub.  Looks like you have been a busy...
  17. fourthwind

    Best wood for a heat source while smoking?

    I have used a lot of woods, and Oak so far is my favorite for the base heat, and then I use peach and pecan for flavoring.   I think hickory tends to be so dense that the coal base is tougher to maintain in smaller smokers.  Changing to a fine or "pizza aplit" helps that however.
  18. fourthwind

    Lake of the Ozarks new 250 Reverse Flow build NOOB NEEDS HELP !!!

    Nice score on the metal and doors!   It's pretty easy to figure out your air inlet size.  You will need 1.5 to 2.0 times the area of your exhaust stack.  So for example if you have a 6 inch diameter stack you use the formula "radius squared X Pie (3.14)    for a 6 inch outflow it would look like...
  19. fourthwind

    Lake of the Ozarks new 250 Reverse Flow build NOOB NEEDS HELP !!!

    Most of the rattle can stuff works, but you will not get the finish you are looking for on large surface area's.   I understand the roughness and not wanting to do the prep work.  It's some serious labor when using an old tank LOL   We have experimented with using JB weld on the tanks as a...
  20. fourthwind

    Lake of the Ozarks new 250 Reverse Flow build NOOB NEEDS HELP !!!

    Do be careful with that paint.   The last build I did with a tank, we just put the valve holes on the bottom, and just welded a plate over them.  I found a good source for rolled pipe in my parts and stopped using propane tanks..  The extra 200 bucks was worth all the labor I had to put into...
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