To purge it I drilled two 1/2" holes on each side of the valve. $80.00 Venturi burner kit FAQ. A distinction I found on Ron Reil's website, differentiating between venturi's and forced air systems, is that venturi's are nozzle burn, and forced air are chamber burn. The voices in my head may not be real but they have some great ideas. If you don't know what you are doing, find someone who does. For me, a kiln should fire evenly, consistently, and in a reasonable time frame. Forced air propane burners are very useful, especially for melting various metals. Venturi burners are simple, easy to operate, quiet, and safe. This is necessary to prevent excessive oxidation and scaling of the metal. Assembled Venturi Burner . Click on image to enlarge. It's time for the truth to be told and a fair chance given to the blower-based burners. One of the main advantages of Venturi systems is operation without electricity. DF AIR FORCED gas burner Full set … Although generally not as efficient as power burners, they may be turned down lower for preheating. With natural gas, ¼” seems to work well for me having 2 lbs. Forced-Air Burner Kit: This kit comes complete with everything you need to build a Forced Air burner - These burners feature a 2" body and a 1" burner tube, andare suitable for a forge size of 8" diameter and up! Unlike most natural draft burners, power burners will allow true oxidation firing in a gas kiln. Art. With proper safety equipment and installation, these problems can be averted. While this thing looks completely overbuilt, it's just to allow enough airflow through to use very little gas. 2" of wool and I've gotten it up to welding heat but not consistently. I'm using one now to connect my pvc hose from my blower to the top of my burner (so I can disconnect and put it on the charcoal one.). A properly adjusted gas forge will have an air/gas mixture that will create a neutral, or slightly reducing, environment inside the forge. Mine is fashioned very closely to Randy's.Paul came up with a great idea and that was to add a pipe union between the bell reducer and the elbow.It makes it very easy to take off and use on another forge. Then I got the garden hose and filled the tank using one of the holes and the other was the vent. 3. PO Box 1086 • Dandridge, TN • 37725 Blacksmithing.. We can supply you with burner specs., listed approvals on burner components, and other information to help you over the approval hurdles. whitch burner is to prefer and why is it so? I still am running a burner I bought from Art Anderson 12 years ago when I built my first forge. It reaches the welding temperature in all large forges and melting temperature in large furnaces. It’s an excellent choice for professional use! A steel housing is much better. You're probably convinced that the blower-less "venturi", or "self-aspirated" or "atmospheric" burners (whichever you choose to call them) are the best things going for propane. The cost of this services is $100.00 per hour. There are two types of burners available for a gas forge – Venturi and Forced Air. As the years go by, the late night firings tend to become lonely vigils, taking us all away from family and friends. Whether using natural gas or propane, power burners are not affected by weather conditions. It has seen duty in several forges over the years, well worth the $100 or so dollars it cost. Friends brought together by the excitement of making pots. I have made a lot of changes cutting and welding to my forge thats why it is so ugly. Thanks again. Jul 14, 2016 - whitch burner is to prefer and why is it so? To answer your question about Venturi vs. forced air burners, I've posted a couple of paragraphs from my catalog (pg 28). But most people seem to find making one for themselves too complicated. My large blower is a squirrel cage and I have to keep it closed down or there's too much air. The forge's atmosphere can be adjusted by twisting the upright pipe, which varies the amout of air sucked in. We're an independent group of craftsman drawn together by the love of steel, fire and freedom. See more ideas about forge burner, gas forge, propane forge. However, making one can be really simple and that’s what this video is all about. Since there are no blowers, Venturi burners run quieter under low pressure than power burners. Venturi: These burners are best when used with LP, but work well on natural gas in small kilns or with an adequate number of burners. Neat forges. Explore. Personal Philosophy They are relatively cheap and can eliminate a lot of the guess work of trying to tune a burner system. I used a non OPV 5 ga propane tank for my forge body. Thanks a great idea... just wish I'd thought of it. venturi burner), an orifice of 1/16” is adequate. I'm just starting out in this, and such as it is there are very few "turn-key" solutions, or at least not ones I can afford. (865) 397-2914 phone • (865) 397-1253 fax. The air induction ports are long milled slots, providing the necessary cross-sectional area to allow the burner to draw in all the air that its advanced design is capable of. They allow independent control of air and gas resulting in full control from oxidation blue to reducing yellow flame. This is a BRIEF answer, If you need more info, feel free to give me a call. A coupling in the burner! A plaster housing for a forge is not a really good idea, if you ask me. Many potentially expensive mistakes can be avoided by asking a few questions. B-5 Venturi Burner [SHIPS MFG] $384.90 This burner is 21” long and will produce between 58,700 to 649,400 BTUs depending on the gas pressure, type of gas and size of orifice. Saved from bladesmithsforum.com. Using the lower range of the BTU/Hr figures we have outlined will still fire a normal kiln to the desired temperature, but will lengthen the firing time. Please consult with us if you have any questions. Have you been deceived? I have worked with forced air forges, just never built one. Welcome to the Primal Community! Getting a forge built can be challenging so don't be afraid to ask questions, I certainly had to. For this reason our BTU/HR figures are higher than other experts. Venturi burners can produce different BTU outputs with changes in pressure (see Venturi Burner page). Power burners are designed to only operate on low pressure for natural gas and low pressure for propane (14" water column or 1/2psi). But, because of the large volume of such calls though, we do charge for this service. These are some of my earliest memories of firing kilns. So, a 2” pipe times 9 equals 18 inches minimum from the burner. The only real pitfall to the horizontal forge configuration is the inevitable hot spot created at the entry point of the burner. For those folks that just want to call and talk with someone about their kiln/burner problems, we'll be glad to help. For these times, we offer a consulting service. I can't give you specific details because I have only built venturi type burners myself. of line pressure. We believe it is better to have the extra BTU's than to come up short with a heavily loaded kiln during a winter drizzle. Metal Art . Metal Art Techniques. Because all primary air is supplied and mixed by the blower, power burners can be more efficient. Venturi Burner Tutorial This is a tutorial on how to build a simple LPG venturi burner. As a rule of thumb, natural gas should be introduced into the air line at a distance of at least nine times the diameter of the supply pipe. Their high volume and long flame length help to produce more even firings. Thread starter Nylund knives; Start date Aug 11, 2011; N. Nylund knives Well-Known Member. my current forge is using 1" pipe and a 8 qt ss stock pot for the body. Twenty calls a day like this, and we don't get orders out or equipment built....so we charge our usual per hour rate with a $25.00 minimum. Atmospheric burners are easier to make but a bit fussier to set up. How tight is the seal between the venturi burner and the heat exchanger? Remember, this charge is applied only to folks that have no plans to order equipment from us. All of our products come with technical assistance. The soft roar of the kiln. I used the top of the tank as the front and cut a 6" square hole around the valve with an angle grinder. Power: Power burners are much better than Venturi burners for use with large demand natural gas kilns. NOTE: Natural gas hook up involves many variables. Do a LOT of research before you try yourself. forced air vs. venturi? The forge itself can be made in any configuration…pipe, tube, fire brick or just about anything one wants to heat steel in. A lot of DIY videos out there have too much brass fittings and soldering involved. I drilled a hole in an exhaust pipe from Autozone, bent a piece of 1/8" copper tube to go into the hole and then point down the tube, hooked it to a high pressure propane reg. Moderators:Shakudo2, Thomas Bog Iron Powers, Radharc 59, Stephan P, Randy Skidmore, DimeNickel, ThreeToedWolf, B Finnigan, anthony chaney, Phoenix 1967. The available pressure, length of pipe run and the number of turns, pipe size, and the meter capacity all affect the amount of gas that can be delivered to the kiln. DF (Air forced) Gas forge burner (air forced) DF is intended for large forges and furnaces. Burners: There are two types of burner "blown", where the air is driven by an electric blower, and "atmospheric" or "venturi" where a high speed gas jet is used to draw in the air. With my burner design, the forge environment should meet that requirement if you use a #57 or #58 jet diameter. Most of the blacksmiths use the Venturi burners for their gas forges. I used my lathe with a ball mill bit to bore the hole in the elbow where the propane plumbs into. I started with a venturi burner, which I also made myself. I have posted my little burner before on other forums. The ribbon burner can easily be built from materials found in most shops or obtained locally. hot spots as in a venturi burner forge and combustion is complete at the burner and not dependent on the swirling motion of a blown pipe forge. The parts cost around $60 AUD without the regulator (which can be another $100). - May (but probably not) require some tuning for your particular forge, but it's easy to do! There are times though when you may need more help. we can provide you with information or be available, by phone, to walk you through any problems that may arise. Maybe the commercial venturi burners can do a better job, but from my understanding the forced air style are much more efficient. Blown air burners aka "Forced air" burners for propane and natural gas. These burners do not rely on the action of the gas and chimney to pull primary air into the burner. This website uses cookies for functionality, analytics and advertising purposes as described in our, Primal Fires - Forging Metal in the Tradition of our Ancestors. Jul 26, 2018 - Explore Dale Mason's board "Venturi burners", followed by 256 people on Pinterest. The inducer blower pulls air into the burner but they also seem to operate on the venturi principle. (Power burners can be supplied with a small Venturi pilot mounted to the head for this purpose). -- June/28/2014 . If you order in the future, your consultation fee is credited to your order. Power burners are high efficiency forced-air blower burners equipped with a manual air shutter or an optional variable-speed motor control. The valves allow for a greater degree of control that I ever had with the venturi. Drilling on convex surfaces is not always easy. Also, power burners do not need chimney height to create draft. Consulting & Design Service How is combustion achieved? Aug 11, 2011 #1 Hi again, I have now made a forge to do my forge welding but I have som trouble with the fine tuning of my burners. First off, thanks to everyone who has responded to me in the past. Forced air burners are more efficient but costly, loud, and less secure. We believe this service can save you both time and money. If you are building your own forge, buying a pre-made venturi burner is a good way to go. I was reading an article on gas furnace combustion: wardburner dot com -> forced air vs venturi burners Do gas furnace burners operate as forced air or venturi? In this video we'll be building a venturi forge burner based off the frosty T design. Jul 14, 2016 - whitch burner is to prefer and why is it so? Forced air burner tuning? Pottery can be a large part of your life but, you don't want a life that revolves around a kiln schedule. Forced Air vs. Venturi Burners Forced Air: Power burners are much better than Venturi burners for use with large demand natural gas kilns or large demand low-pressure propane kilns. In order to build this forge burner, You will need a drill, a set of bits, and a couple of files. The forge is small enough that I can run the burner at under 5 psi and keep the interior at a good working temperature.However, this burner design does work well in larger forges, many large forges even use multiple burners. Ward Burner Systems I only use forced air burners. When the water came to the top it was purged. So, my step one has been building my tools and soaking up information about them. I also made an insert to hold the 1/8 NPT in place to weld it. Cold clear nights. The forge I have been using for the last 1 1/2 years is based on Indian George's design. 8" diameter x 13" Long Horizontal Tube Forge with Forced Air or Venturi Burner The horizontal forge is a popular configuration due to the longer heat chamber, which simplifies the heat treating process somewhat for longer work pieces. Forced Air: Power burners are much better than Venturi burners for use with large demand natural gas kilns or large demand low-pressure propane kilns. Natural gas @ 7" WC produces 78,440 BTUs. Saved by emilio. Venturi VS Blown Burners - One Man's Opinion (Portions of a letter composed in 2002 by Ron Reil with minor editing) The burners now available of the Venturi design, both to build yourself and to buy through HybridBurners, are light-years ahead of those available a few years ago. To say the least, I am very excited about using these burners in my forges. Plaster is fragile and does not take heat well. If you use a hand drill start with a very small hole and work up. If you would like a catalog, send me your mailing address. On the down side, power burners need electricity, making power failures problematic. These burners do not rely on the action of the gas and chimney to pull primary air into the burner. Jul 14, 2016 - whitch burner is to prefer and why is it so? Please be careful when working with gas. This volume and flame length also make it possible to run kilns on two burners, replacing 4 to 6 Venturi burners. Higher pressures reduce efficiency, but provide more flexibility than the set, high end, output of power burners. The chimney needs only to be high enough to remove flue gases from the kiln building or shed. Approvals: If you run into problems getting your kiln or furnace approved, give us a call. 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