How to Build a Venturi Forge Burner for Only $21

[Music] welcome back to the kita knife shop today what are we making a small venturi style burner a burner of this size will be adequate for small forges or in my case using it as a heat treating burner in a larger Forge that is the reason why I built this small burner specifically for heat reading 1080 for my blown Forge burner was overshooting critical temperature too quickly so this small burner helps me ease up to the approximately 1500 degree mark when heat treating my knives before we get started with this tutorial please hit that subscribe button in the bottom right hand corner it will really help out the channel and you'll get notified of fun and hopefully informative content like this in the future today we're going to be building what is known as the frosty tea venturi burner this method of construction was pioneered by a gentleman named frosty on the knife dog message forms a link to his plans can be found in the description below this little burner is a very economical burner without some of the additional fittings than I am using you can make this burner for sixteen dollars with all the fittings that I'm outlining here you can make this burner for about 21 bucks I found that I got the best prices on these components when I ordered it online so I'm gonna put a list of required items to duplicate this build in the description below most everything came from a supplier name supply house you have to buy the MiG tip separately so let's start from the top with the components you're going to need a 3/4 of an inch merchant coupling we'll get more into the details of this merchants coupling versus a reducer later on the video you'll need a 6 inch by 3 quarters of an inch nipple a 1 inch by 1 inch by 3 quarters of an inch tea a 30 thousandths of an inch big tip 1/4 inch flair to eighth inch npt male pipe thread union 1/4 inch flair swivel coupling 1/4 inch flair to quarter inch female elbow and finally a 3/8 flare to 1/4 inch NPT union so let's get this build started step one is going to be to put a hole in the top of the center of the tee what you see me doing here is milling a flat section on top of the tee you can do this with a mill with a grinder with a file but all this does is help you drill the hole nice and straight the next step is to mark this up take a set of CalPERS find the center of the tee and then hit a center punch right in the middle as a side note frosty recommends getting a floor flange to set up in your drill press for drilling to keep everything nice and straight but I'm going to try it out on a mini mill you will be drilling a 21 by sixty fourths of an inch hole so that you can tap it with an eighth of an inch by 27 NPT tab this is going to be the same threads of your eighth of an inch male pipe thread two quarter inch flare fitting after the hole is drilled I suggest using the drill press or the mill that you're using to start your tap make sure the power is turned off you'll be turning the drill press with your hands after you have it nice and started you can remove the tap from the drill press and then finish it out fully by hand next we'll be tapping the center of the eighth inch male pipe thread fitting to accept the MiG tip the hobart make tips that I am using are threaded in quarter inch by 28 NF the ID the fitting doesn't need to be drilled in this case since it comes from the manufacturer around the correct size for tapping after you get that fitting tapped you're ready to assemble this step is pretty easy go ahead and screw your MIG tip into your eighth inch NPT two quarter inch flare fitting then take that fitting and thread it into the top of your tea next you can connect your three quarters of an inch by 6 inch nipple and Merchants coupling to the tea after that you can connect your quarter-inch flare by quarter-inch flare swivel then the elbow that goes from quarter-inch flare to quarter inch female pipe thread and then finally the fitting that goes from quarter inch pipe thread to three-eighths of an inch flare this will be what you're hooking up to your propane tank now we're off the testing you're going to want to test in the vise because everyone likes doing that so in order to do so this merchant's coupling won't do very hot it won't hold the flame at the end of the burner so if you want to test in the device you're going to have to use a 3/4 of an inch to one inch reducer I'm showing the difference between those two here I'm trying to test it with the merchants coupling it's not working out too well you put the reducer on there and it will hold the flame in practice I use the merchant's coupling in the Forge because the forge itself holds the flame if you're not happy with the way your burner is running you can adjust the length of the MIG tip to fine-tune this burner frosty suggests taking off sometimes around the eighth of an inch in order to keep the MIG tip in the center of the tee for being such a small burner I'm impressed on how well this burner heats up my Forge the internal dimensions of my Forge are 6 inches in diameter and about 18 inches long which I consider too big for this burner when it comes to day to day forging however that's not why I built this burner I've been able to successfully heat treat 1084 blades when running this burner at around 5 psi and I'm happy with that overall the setup for heat treating is very controllable I don't overshoot temperatures anymore and coupled with the muffle pipe I feel like I have a lot of control over this setup with a smaller Forge this burner will surely meet the needs of a beginner bladesmith and at a very affordable price so to wrap this up if you're getting into forging and you're beginning knife maker I really hope this video helped you out I really enjoyed building this burner and I was tempted to make a few more just fun if you found this video helpful please subscribe to the channel and if you have questions about this build feel free to drop them below in the comments section and I'll make sure to answer them until then I'll catch you all on the flipside you

Channel: Red Beard Ops

Views: 149,152

Rating: 4.9344764 out of 5

Keywords: How to Build a Venturi Forge Burner, how to build a forge, Venturi, Venturi Forge Burner, venturi forge burner design, building a forge burner, forge burner, forge, blacksmith, bladesmith, blacksmithing, bladesmithing, venturi burner, burner, Tee burner, Frosty T Burner, frosty t burner build, knifemaking, knifemaker, jkeetonknives, pipe fitting, forced are burner, gas forge burner build, gas forge, gas forge burner, how to build a gas forge, diy burner, diy venturi burner, diy forge

Id: SAP8Xho_I6w

Length: 7min 15sec (435 seconds)

Published: Sat Mar 30 2019

Reddit Comments

[u/JKeetonKnives]

Hope yall have a blessed day! This reddit thing is awesome! Didn't even know this community was here... Most of my correspondence with other makers has been on bladeforums. Hope all yall the best!