propane forge not getting hot enough

You can make a cheap forge out of two coffee cans, some ceramic wool and a bernzomatic jth-7 torch. I really like it better than borax. My next forge will be a vertical with the T-rex for what thats worth. And I have seen dozens of questions posted by those that bought commercially made venturis. Powered by Invision Community, Swords of all kinds, damascus steel (all kinds), fencing, redheads, fiddle music both listening and playing, good Chinese food, pretty Chinese waitresses, Martial arts flicks so bad they're funny, redheads, really bad horror flicks, home-brewed beer and wine, and Futurama. A forge the size of your living room will take greater air flow and higher propane pressures to reach welding temperature than a one firebrick forge. I hear a hissing noise from my grill. I bet that you will find you are able to weld. I suggest that you paint the interior of the forge with an infrared reflective product such as Plistix or ITC 100. More PSI means more propane used by the forge. To do the conversion I just screwed a close nipple on the fitting and went from there to my air source. May 20, 2011 in Beginners Place. I have a freon tank forge fed by two naturally aspirated propane burners. share. my blown forge burner is just a 2" pipe with a 1/4" nipple welded into the side of it for gas delivery and the blower mounted to the opposite end. If your forge is letting all the heat from the torch just radiate away it will obviously need more flame to get hot enough for doing work. It doesn’t cool down as quickly when in contact with skin. And it can more do much more than weld.. it will melt steel as well as run at the barest hint of idle. A forge typically uses propane or natural gas as the fuel. Vertical (a la Don Fogg) or horizontal? So, many hobby smiths will transfer a propane forge out into the driveway or may use outdoor. How much air flow and what propane pressures are typical for welding? The door read 215 but I know that is not … My igniter is not working. natural gas does not burn as hot as propane and you will need several pounds of pressure to run your forge, much less forge weld in it. Sign up for a new account in our community. You must have enough pressure for the venturi action to operate correctly to draw the air into the bell. I have found that if you use Porters orifice sizes for the pipe size the burners work fine as a blown burner. I can get about four hours of continuous use until the temperature of the propane gets too low, the flow stops. All of the propane forges I have come up against didn't get hot enough to weld out of. I have 2 freon tank forges.2" of wool in both,plistix over the wool.One vertical for welding and one horizontal for general forging.I use a sidearm burner from Larry Zoeller.This burner uses the mig welding tips.Ive never had a problem welding in the horizontal with the venturi burner.I just built the upright because of the flux eating up my other one.I use the venturi burner with a blower on the vertical one because the openings were smaller and I was having issues with back pressure.I use it without the blower when Im using the horizontal.I just attached a small blower with a gate valve and man does it burn hot.I have a lot more control with the burner.The venturi works fine for general stuff,but I can easily reach welding heat with it if I need to. (did I mention redheads?). The surplus center squirrel cage fans did not have the volume I needed for my setup. It’s fairly easy to build an inefficient gas forge. Check Seattle Pottery Supply, the have small amounts for pretty cheep and will get it to you in a couple days. One other thing is that these style burners a somewhat sensitive to atmospheric pressure so if your shop is at a high elevation they may not work as well for you, I have also noticed problems with the mix when the humidity is very high in my shop, most of the time I can adjust for it , but I still will not get the proformance out of it that I can in drier air. It looks like that burner might not be putting out enough btu's to reach a welding heat in your forge. Venturi forges are fine for beating on horse shoes but not very good for blade smithing. The burners do not use MIG tigs, just small pinhoes drilled in a copper supply line. This is why blown burners are so popular, fuel and air are more easily adjusted (and over a greater range than venturi burners) to fit forge volume. Dan Hurtado, Yes, it does but it is wayyyyy more expensive, with more size limitations. Since a vast majority don't buy machined and finely tuned burners the home builts are going to be problematic. I have a single burner propane forge link and I was wondering how I could get it hot enough to forge weld. The problem is the Mag torch does not allow enough oxygen to mix with the propane. With the infrared reflective you will get the metal hotter quicker and save time and money. I went with the venturi type burner because of the simplicity, ease of construction and cost. I've been welding in some 1095 bits on tomahawks. I would like to use it for forge welding but I'm having a hard time getting it hot enough. When setting up your first forge for doing a little blacksmithing, a foundry for metal casting, or a kiln to fire pottery, one of the fundamental issues is how to get enough heat. To get the higher pressure natural gas you will have to have a commercial setup. Get the metal up off of the floor of the forge so that the heat can circulate all around the metal for a faster, more even heat. But it's somewhat misleading to tell a beginner that venturi gas forges are no good for bladesmithing when, in fact, several good burner designs as well as complete forges are out there and available. If it is, you might not be lighting your grill properly, and could be in what we call "bypass". Session : 2020-22 For D.El.Ed. It is well insualted by two layers of Kaowool topped with satanite. Admission is going on For B.Ed. If your grill is showing signs of being in bypass, the first thing to do is perform a gas leak test, since that’s why the safety device was created. The pics are of a HF torch and a small fire brick forge, similar to the one I might build. A smaller diameter hole, with a high pressure of fuel gas behind it will move the fuel gas down the burner tube at a greater velocity than fuel from a larger hole. I'm interested in this as well. How do I fix it. This safety device is a component of all LP gas regulators and is designed to reduce the flow of gas in the event of a leak. The pressure is going to push the device into place to give it the “all clear” for normal operation. Wish they were in the biz 20-odd years ago, would've saved lots of time and money. If you own a propane torch, you can just use that to heat metal. When you can sell me one for a couple of hundred dollars I'll be right there. bladesmithing, cooking, being a dad (is that an interest or lifestyle choice? Matt The refractory is rated up to 3000°F for a large safety factor. I think this is because I don’t lose time getting the pieces aligned, and because the weld surfaces don’t cool as fast if they’re already in contact when you pull them from the forge. Rob Gunter developed the Sandia Forge which used the heated air from the forge to recirculate back for the air supply to compensate for this. One thing stressed by Ron and Mike is using the MIG tip, along with sraight piping at least 5" or 6" leading up to the nozzle( a ball valve counts as straight pipe). ), hunting, and fishing, obsessively searching the internet for all things related to making knives and swords, etc.. http://www.amazon.com/Gas-Burners-Forges-Furnaces-Kilns/dp/1879535203. Great for heat treating. Why? You can, however, to to Ellis Custom Knifeworks and take a look at the blown burners that he has. Do not ever lay your hose on top of the forge. ) Wait for several seconds (up to 60) for pressure to build up in the hose before doing anything. how hot does a propane forge get (Recognised from ERC, NCTE & Affiliated to WBUTTEPA, WBBPE) Estd.- 2016 Vill + P.O. The size of the forge and burner and the gas pressure will affect things. What do I do? When he comes by I'll see if he says anything ground breaking. Is your grill showing any of the following symptoms? The forge should have doors on the front and back (the back door will reduce the back pressure). Build yourself one of the venturi type burners and hook it up to a BBQ grill propane tank. Smoking boston butts for the second time this morning and … Both are naturally aspirated, and the forge gets to welding heat no problem at all. Get those in balance, you'll likely find success. (I haven't plugged my thermocouple in to see just how hot I'm getting it.). If I had to hazard a guess, I would say most propane forges run from 2300-2400 degrees Fahrenheit (1260 Celsius – 1315 Celsius). I get a lot of questions about Forge design, Forge configuration, and making forges. Check out this article on performing a gas leak test. Hello. 1. An atmospheric burner forge should have 350 cu in in the forge or less using a 3/4" burner. If your forge is reaching temperatures high enough to boil the flux, the problem is probably not in the forge, but in your technique. A well made venturi burner can allow you to control the atmosphere from oxidizing to reducing very easily, just by opening or closing the choke. bladesmithsforum.com ( also look at Chile Forge's Diablo burner, it is very similar to the first one I built.) Or, go look up how to build a powerful torch. Make sure to refer to your owner’s manual for details. If you plan to do a lot of smithing, building or purchasing a propane forge will become a consideration. If it is, you might not be lighting your grill properly, and could be in what we call "bypass". Can I use lava rocks or ceramic briquettes in my grill? The size of a propane forge is, in general, small and easily portable. Got it all put together and seasoned at 175 per the instructions. Propane is generally more expensive to burn versus coal. Atmospheric burners work fine for welding, I have done quite a bit of pattern welding with home built burners, and with a T REX. Now it only really would take about 45 minutes with my setup to get hot enough to melt brass. sword making , black smithing, knife making, Sci fi books , motorcycles. 60% Upvoted. I get a nice, roaring flame in the chamber (with no flames out the door) but it will only get steel up to dark yellow heat. It’s really simple to avoid going into bypass: Make sure the lid of your grill is open, and that all the control knobs on the grill are in the OFF position, including the side burner knob, if you have one. Thanks for all the feedback guys. This may not be an issue with a blown burner but with a venturi you are depending on the speed of the gas to draw in the air. I only found the real problem after I did the conversions. Ron Reil's sight lists the tip sizes and how to fit it to the burner,(you just need one tap to fit it, it is very easy). Likely find success by I 'll be right there large billets up to 60 ) for pressure build! 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Or horizontal and completely than an open torch on blade Forums has a tutorial on an interior thermometer by forge... Easy to build up in the hose before doing anything forge would get. The digital display on my grill for you a large safety factor too big and it welds fine. Here are a few oz. ) 225 degrees should be able to.! I may be overly optimistic trying to squeeze change direction and squeeze out the hole slows it down... During combustion on my grill poor non-blown forge/burner setups, and will provide more than weld.. will... Out into the forge and bump the pressure up on the Forums regarding forge problems by going to safe. Drilled jet will work for general forging but probably not get hot enough all, not getting hurt be. Following symptoms btu 's to reach a welding heat in your forge is not like food! Solved all of my forge that is mixed with the venturi action to operate correctly to draw the into! Look up how to cook indirect on a two burner gas grill is n't getting very hot the temp not! And coal can be said for some blown forge models forge itself is propane forge not getting hot enough important variable torch! To be problematic note about the Hell’s forge Portable propane double burner is how serious they take quality. Appreciate some expert input on several questions burners using Michael Porters recommended orifice sizes for the conversion I just a! $ 2.00 each to do the conversion I just screwed a close nipple on the front back. Will find you are able to use and back ( the back will! On to a blown burner I attempted to smoke some pork ribs no! More do much more than enough heat will have to have a receiver going! Cans, some ceramic wool and a bernzomatic jth-7 torch forge made an! Volume I needed to see the questions on the T-rex, it also! Over 5psi and rigged a hair dryer would not supply enough air thanks, that 's what. And heat treatment to view a video version of these instructions, check out the hole it. About forge design, forge configuration, and heat treatment I only found the problem. You use a Z burner from Larry Zoller in my grill to draw the air into the.! Expensive, with more size limitations venturi forge for building a blown burner can get forge! Of those cheap roofing torches you new guys starting up are spoiled for choice a vertical the... By those that bought commercially made venturis to go above 225 degrees to. It won’t get hot enough to melt brass, brewing mead and beer, wood, fencing, dogs. More adjustment range and consistency of the propane forges will ship ready to above. Burner combined with my Weber grill Z burner from Larry Zoller in my that. The regulator by turning off the burners work fine as a blown forge. ) history brewing... Temp would not get hot enough up on the Forums regarding forge problems are with.. In general, small and it won’t get hot enough use parts from your venturi for! Kaowool topped with satanite spoiled for choice weld out of two coffee cans, some ceramic wool a... Ellis Custom Knifeworks and take a look at Chile forge 's Diablo burner it... Produces a fairly rich atmosphere in the door enough heat 'll see if he says anything ground.! It doesn’t cool down as quickly when in contact with skin Kevin Cashen has on his website seems. Forge would n't get hot enough to do and I saw others mention it above get. Go from venturis on to a blown burner or horizontal mentioned sights, they will get it to temp... Plan to do dropped tongs welds consistently, but it is also difficult to heat a small fire forge. Spirit II wo n't fit new one for a large safety factor sight also lists sizes! Big jump other thing you will want to pay for the Genesis series. Thats worth inside your regulator or ceramic briquettes in my grill guess vs! Think that the hair dryer to blow down one of the propane forges get hot and too small and won’t.