http://ronreil.abana.org/design1.shtml
Also, Fire is Hot. A burner like this puts out a significant amount of heat and using such a device improperly is likely to cause you injury and/or property damage. I suggest you use good safety procedures building and operating this burner, BUT AM NOT RESPONSIBLE FOR YOUR ACTIONS OR CHOICES NOR AM I RESPONSIBLE FOR ANY DAMAGE OR INJURY THAT MAY RESULT FROM YOU BUILDING AND USING THIS DEVICE.
There are countless designs for forge burners and furnace burners online. I like this one because it is simple to construct, and the materials are easily obtainable from most hardware stores.
This burner was built for this small forge. 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.
In order to build this forge burner, You will need a drill, a set of bits, and a couple of files. If you don’t have a tap to install the set screws, there is an alternate method that I will address at the end of this article. Also, in order to forge the flare for this burner, you will need a functional forge already, or another heat source. If this is your first forge, there is obviously going to be a problem here. The alternate method for this too will be at the end of the article.
Also, it is important to note that you will need a gas regulator to run this burner. Simply running a hose from the burner assembly to your propane tank is not going to cut it. Regulators can be purchased locally at welding supply stores.
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The main burner assembly is made from black iron pipe fittings. I bought all of these off the shelf at Lowe’s. DO NOT use galvanized fittings as they will produce toxic fumes when heated.
The brass fittings are all 1/8″. The 4″ nipple, coupler and end cap on the left make up the segment that is installed into the intake of the burner. The rest of the fittings serve to distance the hose connection from the heat of the burner, and can be constructed in any configuration you want.













































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Anyone know how long this burner will run on a standard 40lbs bbq tank?
Also, does propane burn hot enough to reform a leaf spring from a vehicle?
I found out that my first trials didn't work because the gas can was very low on pressure. I used a new one, but the inner cone flame went away after a few minutes. If I have to always maintain high pressure, what would be the best way...? Smaller pilot hole?
I added length to the burner temporarily with PVC and still got no inner flame. Same for when I pushed the flare all the way back on the burner.
The last combination I can think of is making a new, small pilot hole (again) and using a longer flare combo (maybe shorter too)....
I've invested $100 on everything, $40 on the burner, so I really want this to work heh. Last time I lost $90 on an unsalvageable project, I was sad.
I know the feeling brother. But before you go buy any more parts, try heating some steel scraps with the burner as it is. Even though the flame is not tight and uniform, if you point it inside an insulated enclosure, (a forge) it is going to get very hot. Over time, my burner flare is gradually oxidizing and changing the airflow of the burner. When I run it outside of the forge, the flame is wide and fluffy, but it still keeps my forge hot enough for work. Remember that you won't be able to see that pretty double flame cone when its inside your forge anyway.
Thanks for the instructions, this is exactly what I needed for my forge.
Have fun.
This burner is very simle to make and works very well.
Great fotos as well.
Could this be adapted to use natural gas in place of propane? I don't like to refill the propane tanks and have access to natural gas.
ANY suggestions, hints, etc, will be appreciated.
As for the foundry, If I were trying to make a foundry, I would cut open the top of a 16oz propane bottle, and insulate it in the same manner as this
propane bottle forge. Also, I would be careful not to point the burner directly at the crucible, but into the edge of the forge so that the heat radiates around the crucible in a circle.
This is one of the absolute best!
It clearly and concisely written, and very well illustrated.
Furthermore, the photos show the skill which you are blessed with; they also demonstrate that one only requires relatively simple tools, and determination, to effect a fine project.
I look forward to studying your website.
Thank You!