Other things that can be used are Propane Tanks, fuel tanks, old air compressor tanks, billboard sign posts, or even expansion tanks. The gap is sized to allow the correct amount of air move through it and then on to the cook chamber. Smoker grills such as offset barrel smokers, horizontal smokers, or pipe smokers, gives you Reverse Flow Smokers can become very heavy as you build them. I solved this by making the firebox removable by bolting on the firebox to the body of the smoker. The air we breath is filling the space around us and since it is at equilibrium, we call it 0 psi, or atmospheric pressure. So we just deal with that. 3.1k. A great source for these items is the local scrap yard. A reverse flow model has an additional metal plate installed that serves the purpose of protecting the food from too much heat. They have all the shelves built in. This gap must be sized properly for the plate to work correctly, which brings us to talking about some fluid dynamics kind of stuff. We just want to smoke meat, right? I have it about 90% done and have spent $56 so far. You ready for this? It prevents your food from an immense amount of direct heat. I love this ible! I could send photos of the tanks with cost and shipping to you if you like. How though, do you get all the oils and chemicales out of the metal, before using? All Rights Reserved, How To Find a Barrel For a UDS Drum Smoker. Did you make this project? All smokers have hot spots in them but reverse flow smokers tend to have less hot spots then other types of smokers. Well if we do some Good Ol’ Boy Engineering, we can compensate for some of these things. Base Price: $2,950 Google how a baffle works in the context for a smoker to get a better idea and the video also covers this. The fire basket is where the hot coals will sit. It’s free to join our community and take advantage of all the information that’s available to you. Completely prevents burnt food near the fire box, balances temps left to right and allows for much easier control of your Oklahoma Joe's Highland (and Amarillo Model from Academy) Pair with our stainless water pan if desired. But it is straight forward to weld in some angle iron so the cooking grate can sit on and cut a piece of expanded mesh to use as a cooking surface. Becoming a member allows you to post and ask questions in our forums. How to Build a Reverse Flow Smoker Part-3. That 10 gauge should be .1345" thick and 1/8" is .125" thick so if you think 1/8" thick steel will burn through, you're building way to big of a fire. The fire box is sized approximately 30% the size of the cook chamber. This air inlet control, or Damper, is opened or closed to limit the amount of combustion air entering the fire box causing the fire to be smaller or larger which in turn affects the temperature of the cook chamber. This allows the meat to be bathed in the smoke and keeps direct heat off the meaty goodness. Thank you for Checking out SmokerBuilder.com! It works out well ( in my mind) that I put the rf baffle an inch and a half above the opening and the cooking grate 4 inches above that. The original handmade backyard smoker from Franklin Barbecue Pits in natural steel patina. The Fire Box is attached to the cook chamber as in the drawing attached and a mating hole is cut between them. In smoker reverse flow, a baffle plate is placed at the bottom of the main chamber with an opening at the end. Reverse flow offset smokers use a baffle system that draws the heat and smoke under the cooking chamber before it is pulled back over the meat again on its way out of a chimney mounted on the same side as the firebox. A Reverse Flow Smoker is a smoker which utilizes a “Baffle Plate” that is welded in solid in the “Cook Chamber” to control the flow of smoke and heat. 9 months ago. A Reverse Flow Smoker is a smoker which utilizes a “Baffle Plate” that is welded in solid in the “Cook Chamber” to control the flow of smoke and heat. I have viewed many smoker ibles and I am shocked that I have yet to see someone, ANYONE, mention being concerned with the toxic paints, different alloys(comments below DID mention galvanized though(finally someone!) Our Custom Tuning Plates for Oklahoma Joe simply rock! We would like to have you join our community. A family heirloom. It takes them seconds to do it so if you don't get it cut to size be prepared to be really good cutting with a mini-grinder. ... *Baffle plate *Slide out Log Rack *Ash Pan *Square Smoke Stack *2 Baffle Plate drains *Integrated Shadow Plate *Unique Throat design *Greaseable Bullet Hinge Detail We Can Now Build Your Smoker For You! Proper sizing of the parts of the smoker is the most important way to prevent incomplete combustion. Takes practice but it is worth it! Also I don't have any pics of the cooking grates except some pics with some food cooking that you can see at the last step. You can see how this was done in the video and pics. This hole must be sized properly. So the heat and smoke needs a place to go so. I speak from science teaching us to be concerned with leeching and chemical reactions but, also from ignorance not negativeness or cockiness. One of the builds I will be featuring on this site is a trailer smoker build. The latching mechanism was just some scrap metal welded in place on the side of the box and a bar bolted to the door with some washers and the handle from a chipping hammer welded into place. On the side I drilled holes for air intake and welded on a bolt so a vent control could be added. The smokers you buy at Walmart or the hardware store will typically be of thin steel.and you will have a hard time maintaining the temperature, although they do work if you only smoke a few times a year. Some tips use charcoal as your fuel and wood as your smoke. At the end of the Baffle Plate there is a drain which is welded into the bottom of the plate. this drain uses a standard Full Port Ball Valve for holding the water and drippings in during cooking and draining them when either done or if the plate gets too full. A walk through the scrap yard is like a treasure hunt, Ive found some great materials and even found all the materials I needed for some of my builds! The parts for this build are from a combination from recycled and new metal. Question This will help you know how big and what size cook chamber to look for. The Baffle Plate catches drippings from the meat and can even be partially filled with water or fruit juices which can be used to flavor the meat and provide some humidity in the cook chamber. In this Instructable I'm going to show you the basic steps for making a smoker. My smoker was running really hot! For instance, I have found a way to make my baffle plates adjustable. The SmokerBuilder® Pit Calculator will help you design and build your smoker according SmokerBuilder's proven design calculations. Some Builds use tanks, pipe, flat steel, or rolled steel. All of our smoker cooker models are built with the reverse flow design and we believe that all of our cookers have ALWAYS cooked better because of this reverse flow design. This allows the meat to be bathed in the smoke and keeps direct heat off the meaty goodness. The Baffle Plate is what puts the “reverse flow” into the reverse flow smoker. If not this project can be a fun way to learn, although it is outside the scope of this Instructable. Reverse Flow Baffle Plate: Our reverse flow smokers use a baffle plate in the cooking chamber to give the air mass in the cook chamber a 180 degree convection pattern and combine that with super even radiant heat from the baffle plate resulting in the most even cook chamber temperatures you can achieve! It's beautiful and looks FUN! I was looking for a hot water heater several years back and was able to come up with them quite easily. What the reverse flow design does is: The heat drafts from the firebox into the cooking cylinder and draws down under a baffled-flue to the end, then it reverses flow (thus the nick name reverse-flow) and drafts back over … If you still are not a member please sign up! See more ideas about bbq pit smoker, bbq pit, bbq smokers. Yeah I have some 10 and 30 gallon water tanks, and a few air tanks sitting behind the shop. On this page I will be posting a series of articles teaching you How to Build a Reverse Flow Smoker. This design is called reverse flow. OK  so the air in the bucket would be compressed, since a liquid can not be compressed, and this would increase the pressure in the sealed bucket. Small tanks shaped how I want are like unicorn horns around my area. Tuner Plates, Baffle Plates, Heat DiffuserPlates, or Heat Plates, whatever there called there a ripoff. I made sure to oversize it a bit so I wouldn't have a problem maintaining the temperature during a cook. Thick, white, belowing smoke is an indicator of incomplete combustion. Hopefully this calculator will help you with the calculations. I welded on some legs to make a frame and some casters to the frame so the whole thing will roll. tank found at my local metal recycling, cost me only $40.00. Perfectly tuned reverse flow baffle plate Baffle plate grease drain with ball valve Round smoke stack Square firebox Side mounted air inlets Log rack in firebox Awesome warming … Baffle Plate and Cooking Grate of Reverse flow smoker design Tragically, I don't have any great pics of the puzzle plate however you can kinda observe it in this photo. Am I a rare example of being concerned with this issue or am I just unfamiliar with the few dangers there are? The benefit of using an additional baffle to reverse the smoke flow is that it … Thanks for reading! The gap at the end of the plate is one of the ways we control that air movement. There are any number of ways to design and build a BBQ Smoker. The Cook Chamber is where the meat or other food is cooked. The biggest expense will be the steel to build the firebox as you want to use thick steel. I have used old water tanks from concrete trucks, air tanks and I’ve had flat sheets of steel rolled up to make my cook chambers. Yes, some reverse flow smokers have a removable baffle flue that will allow you to reach much higher temperatures suitable for grilling or searing. Adhesives; Baffle Plates (Heat Deflector Tuning) Controllers: BBQ Smoker Temp Blower Fans Stokers Fans Adaptors Guru Qmaster Perfect Draft They give off toxic zinc fumes when heated. Hinges were welded on the cooking chamber door and then bolted to the cooking chamber. Now on to more about How to Build a Reverse Flow Smoker. Reverse Offset Smokers. Basically, it’s an adaptation of a traditional offset smoker. I'm using a 400 gal. Highland Reverse Flow; Longhorn Reverse Flow; Bronco Drum Smoker; Traeger Pellet Grill Parts; Weber Smokey Mountain WSM & Kettle. give me your unicorn list if you like (size, shape of tanks), tag me here for emailing. Hello again and welcome to part-3 of our series on How to Build a Reverse Flow Smoker. You can use what ever you want, be creative, just keep in mind that you just need a place for the meat to rest so smoke and meat can move over it. The Fire Box is built using 1/4 inch plate for thickness and durability. Speak to you local plumber. So the smoke and heat leaves the firebox, goes under the baffle plate come redirects back towards the firebox but since the baffle plate is there it exits via the chimney. One of the major differences is in the design and their functionality. The smoke coming from the firebox is directed by an additional baffle plate to the opposite side of the smoker and then drawn back across the cooking grill on its way to the chimney. FIREBOX RIGHT SIDE, W/ WARMING CAB, AND CART. Now you are asking “what does this have to do with a smoker?”  Lets talk about air pressure then. It must be sized properly to promote complete combustion and also to allow for enough BTU’s for cooking properly. Part-1 What is a Reverse Flow Smoker? If you try to burn just wood, you will need to let it burn down to coals first then add more wood for the smoke. Then you can start smoking! The black oily layer seals the steel after that. The Oklahoma Joe's Longhorn Reverse Flow Offset Smoker is very similar to the standard Longhorn model, with the one big difference being that this version is a reverse flow model. Think about the path the water in the creek takes when it encounters an obstruction. This smoker is a beast, not sure what the total weight is but it is heavy, so it should retain heat well. In the next post we will be talking more about the cook chamber and the smoke stack. Am I being overly concerned? Also some aluminum stock was screwed around the opening so the "door" has a place to sit and so a gasket could be added so no smoke escapes. 1 year ago Build A Smoker Diy Smoker Bbq Pit Smoker Bbq Grill Homemade Smoker Plans Custom Bbq Smokers Custom Bbq Pits Pit Bbq Smoke Barbecue. Well in order for the water to occupy the space inside the bucket, first the air must come out. These smoker design plans feature: Round cooking chamber with 2 shelves. all for free. Improper combustion will cause a heavy white smoke which will leave a bitter taste on the food that we are smoking. It can be square or round. I would like to first of all invite you to be a member of our site. or just too excited about the final project to care??? Needs regular oiling and TLC. The materials used keep a very nice looking unit looking professional and clean. If we want the plate to absorb the heat evenly we need to control the way that the air, containing the products of combustion, is moving under it. Still with me? It is the plate steel that is in the body of the smoker, it keeps the direct heat away from the food, acts as a heat sink and provides radiant heat. It is very hard to avoid this. A Fire Box is needed on a Reverse Flow Smoker for the purpose of having an inderect heat source for slow cooking and smoking meat and other food. Welcome to SmokerBuilder Manufacturing! As mentioned in the intro, the firebox is made from 1/4" plate steel, so it's heavy but will evenly distribute heat and keep stable temperature. Knowing the answers to these questions will make your build more enjoyable and less troublesome. The cook chamber can have a single grill in it or multiple shelves. Stop Buying this Trash, you don't need too. You want to use thick steel is it will keep the temperature stable and easy to maintain. Having a trailer smoker is very handy for these occasions. Weber Kettle Mods; Weber Smokey Mountain (WSM) Mods; PK Grill ; Smoker Parts. Share it with us! OK here it goes (I’m going to try to make this simple). Be sure you DO NOT use galvanized tanks for this. An opening was cut into the tank and the piece of metal was saved and used for the door. Barbecue smoker parts, kits, and supplies! All-in-all the Oklahoma Joe's Longhorn Reverse Flow Smoker is the best value for a budget and cooks well. The handle for the door of the firebox is from a chipping hammer, simple, cheap and effective. At the end of the Baffle Plate is a gap. Select from Stainless or steel, both are awesome and will last a lifetime! How big are the crowds I will be serving most of the time? Literally no concerns at all? It will move around the obstruction and  on the opposite side of the obstruction the water will form an eddie and swirl around a little bit. This allows for what is referred to as the “the indirect heat method” of cooking. Then old computer cases make good fire boxes, rip the guts out and any plastic trim. So lets think about this using water for example. SmokerBuilder MFG manufactures and sells DIY parts and kits for Reverse Flow Smokers, Offset Smokers, UDS Smokers, BBQ Grills, Do It Yourself Smoker kits, Barrel Smoker Parts, Santa Maria Grills, Gravity Feed Smokers, and Pellet Smokers. Fire up the smoker the first time let it get up to temperature and let it burn off any oils. If so, Why? Reply The general rule of thumb for a horizontal smoker is that the firebox should be 1/3 the size (volume) of the cooking chamber. Thermometers were installed and a fire basket was built using expanded mesh. Ensure that your smoker is sized appropriately and save time and money on your build. The Baffle Plate serves two purposes, first to act as a heat sink to absorb heat and allow for radiant heat to cook the meat and second to restrict the Draft in the smoker to assist with complete combustion. Thanks for reading!!! LOL. One of the technological features of baffle plates is called “reverse flow.” In short, the baffle plate diffuses heat evenly to allow for precise smoking. Less than 4 hours is the magic number. Since the plate is absorbing the heat from the products of combustion, it radiates upward to cook the food that is being smoked. Made from high-temperature, heavy-gauge steel and equipped with a large charcoal basket, this reverse flow offset smoker … DoublePan™ Gravity Feed Smoker DIY Kit Now available!!! Reverse flow smokers are a subset of offset smokers with an additional metal plate. If you reference the above drawing from part-2 you will notice there is a plate running from the fire box across the cook chamber and stopping short of the opposite end of the cook chamber. What is an Reverse Flow Offset Smoker you ask, it basically has the firebox off to the side of cooking chamber with a steel baffle plate that keeps the direct heat off of the meat. I having some temperature issues with a reverse flow smoker I just purchased from a local pit builder. The only way the air and the water could occupy the space in the bucket would be to seal the container and force them both into the same space, thus increasing the pressure inside the bucket. Another thing that effects the way air moves is called Skin Friction. I am determined to attempt it. Here I did some short ribs, they came out awesome! This plate directs the smoke to flow from the firebox and then turn around once it reaches the other end. Old hot water heaters of 40 gallon size is what you need. You will need a welder for this build, wire feed or stick, if you have a welder you probably already know how to weld. I used 1/4" mild steel plate for the firebox and baffle plate and had the steel shop cut it to size for me with their brake. A Reverse Flow Smoker utilizes a Baffle Plate which runs across the bottom of the cook chamber with a gap at the end of the plate farthest away from the fire box. Air will act the same way when it encounters an obstruction in it’s path. This additional metal plate makes it have an up and down cooking chamber. Click here to see this featured build in progress! This is the Baffle Plate. Reverse Flow Smoker Plans Center Feed Reverse Flow 40" by 40" by 192" Long Rectangle CC- Center Feed Reverse Flow. the plate will radiate heat for more evenly reducing hot spots in the cook chamber. We can also install some steel rod or some steel pipe on the inside of the tank along the bottom of the tank running the same direction as the air is moving and we can straighten out the air patterns and push some of the air up against the bottom of the plate. 5) The ultimate solution is to fabricate a heavy steel duct like the ones built into the large commercial offset smokers and move the chimney to the side by the firebox. It can be made of several kinds of materials such as mild steel or stainless steel. Here is a video overview of the build, I will add instructions on the following steps. I have old water tanks and air compressor tanks but, hesitant to use them. Since air has mass it is a fluid, not a liquid, a fluid. Reverse flow smoker baffle plate. What materials do I have the best access to? I will cover the ratio’s in another segment. What is an Reverse Flow Offset Smoker you ask, it basically has the firebox off to the side of cooking chamber with a steel baffle plate that keeps the direct heat off of the meat. If you have a bucket sitting on the floor which appears to be empty and you want to fill it with water, what must happen? Saved by David A. Casarez TX REALTOR. Sawdust and wood shavings from the workshop for the smoke. A flange was fabricated and chimney attached. The reverse flow smoker has an additional mental plate in the design. About: http://www.youtube.com/c/AndrewWorkshop, http://www.feldoncentral.com/bbqcalculator.html, Cooking Chamber (Old Air Tanks, Water Tanks, Expansion Tanks, Make your own etc..), Expanded Metal for Fire Basket and Cooking Grate, Mini-Grinder (with Grinding and Cutting Discs), Safety Equipment (Welding Shield, Gloves, Safety Glasses, Face Shield). This helps even out temperature differences since the radiant heat from the baffle and food chamber walls heat up the air more evenly. When designing your smoker you should consider how big you want it to be and how transportable it needs to be. I used some pure cotton as a gasket since a smoker doesn't get very hot but you can use felt or silicone. Wish I could find a tank that sized. I'm looking forward to some responses and thank you! It can have a single door or several doors. Invariably, the reverse flow smoker is not much different from the offset traditional flow smoker. Knowing how you plan to use the smoker before you start your build can save you a lot of work. It is important to consider the uses you want the smoker for. If we have a container with pressurized air in it and we open it, all the air that is in the container will escape until the space in the container and the space outside the container is equalized in pressure. Vertical Reverse Flow Smoker Configuration Homemade Smokers Smoked-Meat Forums > Homemade Smokers ... and the bottom of the foil pan did not make direct contact with the bottom baffle plate. I'm actually in process of building a 100 gallon air tank into a reverse flow on a trailer. looks like its perfect for a single rack of ribs. It will leave a sooty, bitter, too smokey taste on the meat. I have a lot of friends who request me to cook for various functions. An old hooded gas BBQ makes a good smoker, just need to seal up back and underneath. The Baffle Plate is installed about an inch above the top of the mating hole and sloping away from the fire box with a slight pitch. The parts for this build are from a combination from recycled and new metal. The purpose of this plate is to direct the flow of the products of combustion to the opposite end of the cook chamber and in the process to absorb heat from them. This Baffle Plate is welded in solid except for the Gap end of the plate. Skin Friction is the resistance across a surface whether we are talking about the bottom of our baffle plate or the inside surface of the tank or anything inside the tank that was installed or left in there. I kept it simple by making a square box and welded on some sturdy hinges for the door. We need to talk a little about some aerodynamics. on Step 3. ... 48"LONG BY 24" DIAMETER REVERSE FLOW SQUARE FIRE BOX RIGHT. junk yards, metal recycling places or garbage dump will have tanks. This is my first real pit but being that it's made from 1/4" steel and has 1/4" baffle plate I was expecting the temps to be fairly close from one side to the other. This was accomplished by welding a plate on the body of the smoker and then matching the firebox to the plate. During this build I used a forklift for moving and lifting the smoker. Only for the first burn, get it hot, real hot. This design cooks from the bottom up. The Fire Box includes an air inlet control that allows for control of the amount of air (called combustion air) for the purpose of controling the fire. Aaron is bringing his handmade pit design to your backyard. I've been thinking I should build one of these, and this is a really clear how-to.I really like the super tall chimney : ), Question and I am not one who trusts it to be burned away with high heat) or metal composites/combinations when using heat to cook our own FOOD! Because the firebox is so heavy it is really hard to move around or store should the need arise. 5 years ago. Mar 16, 2018 - Explore Richard Pruitt's board "Reverse Flow Smokers" on Pinterest. Water tanks that came off some old concrete trucks. Specifically a Reverse Flow Offset Smoker. Reverse flow smokers can handle the smoke and heat flow using a baffle or plate. Reversed offset smokers are also like regular offset smokers with just a slight difference. Does the baffle plate need to be exactly at the top of the firebox to cook chamber opening or is it ok if it's a little higher? Lets think about a creek for a moment. In the bottom of the Reverse Flow Smoker we are building, we want the products of combustion to move from the fire box to the cook chamber and then out of the cook chamber and out the stack. The chimney is made from a 4" ventilation pipe. In my build I used an old expansion tank from a boiler. One sign of complete combustion is the smoke leaving the smoke stack will be thin and blue in color. Will I need to transport this smoker often. Optional smokestack locations let you switch between reverse flow smoking and traditional offset smoking, while four removable baffles ensure even heat and smoke throughout the cooking chamber. This additional plate both protects the meat from the highest temperatures and directs smoke underneath and back over the meat for the perfect smoky flavor. The older geysers are that size. Complete combustion is very important. If we design the baffle plate properly we will also be able to achieve proper combustion. Air can be blown, or pumped, and moves from one space to another. I'll be uploading my smoker this coming summer. Today we will be discussing the Baffle Plate and the Baffle plate Gap. 24" BY 46" SQ. Wash the smoker inside and out, you want to get rid of any left over flux from welding and paint the smoker with some high heat paint. Part-2 will begin with the Fire Box. It is the plate steel that is in the body of the smoker , it repels the immediate warmth from the nourishment, goes about as a warmth sink and gives brilliant warmth. Heat baffle size in reverse flow smoker Q-talk. When smoking meat this is very important for food safety. Some examples of these models include Longhorn Reverse Flow models, Lang BBQ Smokers, and Highland Reverse Offset Smoker. For meat and poultry to remain in the safe zone while smoking, the temperature of the meat needs to move from below 40*F to above 140*F as quickly as possible. If the hole is too big the smoker will have too much draft causing uneven cooking temps, not big enough and the smoker will run cold. Enjoy enhanced performance and versatility with the Oklahoma Joe's® Highland Reverse Flow Offset Smoker. Here's a closer look at the Heat Management System, aka Baffle Plate or Tuning Plate, that I installed in my Oklahoma Joe's Highland Offset Smoker. Part-3 will start with the Baffle Plate Gap. Regular flow offset smokers draw the heat and smoke from the firebox over the meat once, on its way out of the chimney. All of these things will cause the air to either come in contact or avoid the surface under the baffle plate. As illustrated the reverse flow smoker uses a long baffle to move air all the way through the food chamber before being turned around, or reversed. First lets cover some basic definitions: Baffle Plate– a plate of solid steel usually one quarter of an inch or greater in thickness which not only controls the flow of smoke and heat through the cook chamber but also … Science has even made us aware of the chemical reaction from using aluminum cooking pots/pans with certain foods and heat or other facts about leeching toxins into our food and I understand this is not aluminum but aluminum isn't the only concern. When assembling the smoker I modified the stock assembly to make a more efficient smoker that keeps its heat and drafts properly--even on a windy day. I sized the firebox by using the following website to size my firebox http://www.feldoncentral.com/bbqcalculator.html. Copyright © 2010-2018 SmokerBuilder Manufacturing LLC We are going to start applying this to the smoker now. features include: *Square Firebox *Cook chamber racks *Reverse flow baffle plate *Baffle plate drain *Log Rack *Ash Pan *1- Cook Chamber Door *Fully dimensioned *12 pages long *Phone support Check out our hinges and other parts for your build on this site and also BBQSmokerSupply.com! Since air has mass it moves similar to water. It extends most of the length of the cooking chamber and is welded in place. Great job. The plate inside a reverse flow smoker acks like a heat shield and cuts down on hot spots inside your smoker. This plan can be built using any Tank that is 20" inches diameter by 50" long. What kind of materials am I set up to work with the best? The vent control is nothing more than some sheet metal. Unfortunately I don't have any good pics of the baffle plate but you can kinda see it in this picture. Putting the door in can be eased a bit if you cut the side whee the hinges go completely and useing 1/4 inch black pipe , cut the pipe almost through and weld it to the one side where you want hinges, keeping the cut side of the pipe down...after its welded you can finish the other three sides of the door, and slip a bolt through the pipe, cut the last bit of bolt through and your hinges are perfectly aligned. Any part of the surface area under the plate that does not have air moving over it will become a cold spot on the plate. Also some aluminum was used to make brackets to mount a wooden handle on the door of the cook chamber. Made in Austin Texas, Franklin pits are a meld of artistry, science, and the highest quality materials and craftsmanship. In simple terms, the baffle will absorb heat, lower the cooking temperature, and then it diffuses it back to all parts of the chamber. Due to this plate, temperature, and smoke travel under the menu initially and then over the meal with a steady motion.
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