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. The hot air flow is slightly redirected by the smaller holes at the top, forcing some of the hot air down where the larger holes are. Takes practice but it is worth it! Hi, my name is Darrell. Congrats! I sized the firebox by using the following website to size my firebox http://www.feldoncentral.com/bbqcalculator.html. Question it contains a lot of zink (a natural part of the galvanization process), and it releases toxic gases when heated. Check out these videos from our YouTube channel! Most smoke stacks are located at the very top of one end of the food chamber. Hot air and smoke travels through the food chamber and out through the smoke stack. You can place the smoke stack even lower than that if you want to. 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. How long should the stack be? 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. If so, Why? give me your unicorn list if you like (size, shape of tanks), tag me here for emailing. I decided to have my reverse flow plate 4" below my grate so i found the center line at the end of the tank and marked a line for my cut for the firebox. Lift your spirits with funny jokes, trending memes, entertaining gifs, inspiring stories, viral videos, and so much more. I'm an OTR truck driver for over 25 years. And that without even having used one, reverse flow or not. Reverse flow Smokers use charcoal as the base and wood a s the secondary component of their fire. You get slightly more even temps with the reverse flow in a small smoker. The chimney is made from a 4" ventilation pipe. 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. 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. Start with the food chamber and calculate the rest of the smoker accordingly. I discuss what you need to think of, and also what can be ignored. I acquired this pipe from work which was damaged during shipping. Jun 28, 2016 - Discover the magic of the internet at Imgur, a community powered entertainment destination. Reverse Flow Offset Smoker Plans Building A Reverse Flow Smoker Bbq is related to Interior. or just too excited about the final project to care??? The size of the firebox is not related to the size of the food chamber. Did you make this project? This is wrong. Am I a rare example of being concerned with this issue or am I just unfamiliar with the few dangers there are? Learn the tricks NOW. The aerodynamically oriented may wonder if the elbow or bend should be as smooth as possible to allow the smoker to breathe fully. Choose what is easy to build or that matches the look you’re after. In an offset smoker there’s a lot of hot air moving through at a constant pace. Hot air rises, meaning it will move up to the top of the food chamber as it moves across. I'm set up with some old school tools-an oxyacetylene torch, late 60's lincoln AC stick welding machine and a grinder. A flange was fabricated and chimney attached. Being an engineer means calculating and measuring, instead of just guessing. No plasma cutter or that bullshit, I can show kids up at school with a torch compared to there plasma cuts. Does it really matter? NOTE: many first time builders I talk to have their mind set on building a reverse flow smoker since they just ‘know’ it is better. 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. This page is thought to be your guide when building your own offset smoker. A clean burning fire requires good draught, which is accomplished with an appropriately sized smoke stack. So: if you ‘walk’ the path the air takes, but backwards, from the smoke stack to the firebox, each opening/aperture the air passes should be equal to, or bigger than, the previous opening/aperture. 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. Pure wood has higher BTU (heat energy) than charcoal or briquettes, so even a small fire will produce enough heat. Reverse Flow smoker trailer build from a 120g propane tank with cook images. Right now I am working on it in order to insulate the FB and adjust the intake vents. 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. Then you can start smoking! Sorry, your blog cannot share posts by email. 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. The black oily layer seals the steel after that. 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. Because the firebox is so heavy it is really hard to move around or store should the need arise. The vent control is nothing more than some sheet metal. Share it with us! 3) Offset smoker using an old gas tank This build is a fair bit more complicated, but if you have the skills and equipment, it’s certainly a budget way to get yourself an offset smoker . Thanks, this is great information and is not exactly what I have been finding other places. It's a large undertaking, but fun and educational. on Step 3. It has been a year in the making. Welcome to SmokerBuilder Manufacturing! Here’s detailed instructions for firing it up and other tips and tricks. Wish I could find a tank that sized. Yeah I have some 10 and 30 gallon water tanks, and a few air tanks sitting behind the shop. A common way to solve this is to use a slanting baffle perforated with different size holes. 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!) Unfortunately I don't have any good pics of the baffle plate but you can kinda see it in this picture. Old hot water heaters of 40 gallon size is what you need. This is how the Big Green Egg works, a great kamado style grill. I use natural draft calculations (thermodynamics) to get close enough. Google how a baffle works in the context for a smoker to get a better idea and the video also covers this. It is generally available, and affordable. we also hope this image of Reverse Flow Offset Smoker Plans Building A Reverse Flow Smoker Bbq can be useful for you. CLICK HERE TO LEARN MORE. I have it about 90% done and have spent $56 so far. Take a look here! So the heat and smoke needs a place to go so. Required fields are marked *. Your email address will not be published. A website with tons of recipes for indoor and outdoor cooking, plus everything you need to know to learn true barbecue. 10 months ago. Only for the first burn, get it hot, real hot. The kettle is probably the most common grill in many households. Lift your spirits with funny jokes, trending memes, entertaining gifs, inspiring stories, viral videos, and so much more. If the stack is too long, the air is cooled down and condensed. It's beautiful and looks FUN! The older geysers are that size. Our Build With Us Online Course is now available! Your email address will not be published. I could send photos of the tanks with cost and shipping to you if you like. I speak from science teaching us to be concerned with leeching and chemical reactions but, also from ignorance not negativeness or cockiness. The fire basket is where the hot coals will sit. I bought a smoothly bent (1/4 circle) pipe myself, it was the easiest way for me. This helps even out temperature differences since the radiant heat from the baffle and food chamber walls heat up the air more evenly. Help on my First reverse flow smoker build. Reverse flow offset BBQ smoker 24" x 48" chamber 3/8 thick pipe & 1/4 thick plate ~$400 materials and 26 hours of labor Tools used: Hobart 210, Hypertherm 30XP, John … You want to use thick steel is it will keep the temperature stable and easy to maintain. Smoked Potatoes in an Offset Smoker | Hank's True BBQ™, Smoked Salted Caramel Sauce | Hank's True BBQ™, How to smoke a Pork Belly in an Offset Smoker | Hank's True BBQ™, How to Build a Fire in the Big Green Egg | How to Light the Big Green Egg. Great job. This is my manifesto. Read more about the accessory that turns your kettle grill into a proper smoker. There are various suggestions online to make the firebox a certain percentage size of the food chamber, but that simply doesn’t hold true. By placing the smoke stack lower down on the food chamber, the hot air flow will be temporarily reduced (when forced down), causing some of the hot air to transfer its heat back into the food chamber and therefore reduce the temperature differences. The opening from the firebox into the food chamber should be as large as, or bigger than, the smoke stack size. Reverse flow smoker build 2016 November 2020 Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube. Size and shape is governed by two things: Several grates at different levels are very common, as well as different door mechanisms. 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! Reverse Flow. 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). The reason for having it slightly longer is to allow for it to protrude into the firechamber. Many commercial smokers have a smoke stack that is too thin and/or too short if you ask me. Dec 24, 2016 - Discover the magic of the internet at Imgur, a community powered entertainment destination. I’m in the process of making my first offset smoker and this information will go directly into my design. Hello everyone, I have been doing my calculations with the feldon bbq pit calc and wanted to make sure that I have done everything correctly. How though, do you get all the oils and chemicales out of the metal, before using? In this Instructable I'm going to show you the basic steps for making a smoker. Literally no concerns at all? When I build a firebox I make a cardboard box as a model first. Below follows a detailed walkthrough of all parts of a smoker, regardless of whether it is a normal one or a reverse flow smoker. I used some pure cotton as a gasket since a smoker doesn't get very hot but you can use felt or silicone. I'll be uploading my smoker this coming summer. The Baffle Plate is what puts the “reverse flow” into the reverse flow smoker. I discuss what you need to think of, and also what can be ignored. The purpose of the firebox is to create a fire that can warm up and hold temp in the food chamber. If unsure, start with a firebox that is 40 cm wide, 40 cm tall, 50 cm deep (16″ wide, 16″ tall, 20″ deep). I solved this by making the firebox removable by bolting on the firebox to the body of the smoker. Now on to more about How to Build a Reverse Flow Smoker. Hinges were welded on the cooking chamber door and then bolted to the cooking chamber. CLICK HERE TO GET A FREE QUOTE! This set of Reverse Flow smoker plans is built using a 24" diameter Propane tank with elliptical ends that is 68.5" long. This is to avoid throttling the air flow. Here is a video overview of the build, I will add instructions on the following steps. Learn how to make a proper smoker out of yours. I kept it simple by making a square box and welded on some sturdy hinges for the door. By draught I mean the amount of air being pulled through the smoker, measured in ft3/s, or m3/s if you use the metric system. Sins a reverse flow smoker forces the smoke to the far side of the cooking area. Regular steel is by far the most common material. This allows the meat to be bathed in the smoke and keeps direct heat off the meaty goodness. This smoker is a beast, not sure what the total weight is but it is heavy, so it should retain heat well. My offset smoker ‘Rude Boy’ is a normal flow smoker, and I have a 5-8 degree temp variance in the food chamber. That being said the reverse flow design suits smaller smokers better since the BTU (energy) in wood high. if you looking for Reverse Flow Offset Smoker Plans Building A Reverse Flow Smoker Bbq and you feel this is useful, you must share this image to your friends. Take a look here! A 90 degree bend will affect draught slightly, but the effect is so small it can be ignored in this type of application. If you don’t feel like building one but instead want to buy one then Hank’s True BBQ is manufacturing top quality pits. A smoker needs to breathe properly. They give off toxic zinc fumes when heated. 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. Sawdust and wood shavings from the workshop for the smoke. A well constructed offset smoker has no issues with temp swings. Thermometers were installed and a fire basket was built using expanded mesh. Natural draught is controlled by the temperature difference between the food chamber and the outside air, nothing else. Today we will be discussing the Baffle Plate and the Baffle plate Gap. How did you calculate that? This page is thought to be your guide when building your own offset smoker. See the image below which illustrates this back pressure. Some may counter by saying that the temp in the food chamber is too low for the zink to evaporate, but the fire temperature in the fire box is a lot higher than that, so avoid galvanized steel at all times.