Building a Blacksmithing Gas Bottle Propane Forge & Burners

It was time to upgrade to a gas forge to give some more heat control & efficiency vs my old charcoal 44 gallon forge. I bought a brand new 9kg gas bottle to use for the project. The burners I fabricated based on a design by John Carman.

Safety Notes:
- IF you use an old gas bottle, take extended precautions to make sure it's empty before cutting into it with an angle grinder. Better yet, buy a new one, they're cheap
- IF you use galvanised components for your burners, like I did, ensure you remove any galvanising before using the burners. Both inside and out
- ALWAYS wear a respirator & gloves when working with the insulation blanket until it has had a rigidizer applied. Do not light the forge without applying this.
- This is an inherently dangerous project - take all safety precautions when constructing, working with propane gas and operating a gas forge. IF you're not sure about anything, then don't risk it.


Due to popular demand, here is a list of components used in the burner and gas manifold construction:

20mm x 40mm (3/4” x 1 1/2”) bell reducer x 2
20mm x 25mm (3/4” x 1”) bell reducer stainless steel x 2
20mm x 150mm (3/4” x 6”) pipe nipple x 2
3mm x 100mm (1/8” x 4”) pipe nipple x 3
3mm (1/8”) tee
3mm (1/8”) 90 deg elbow
40mm x 100mm (1 1/2” x 4”) pipe nipple
0.6mm (0.025”) mig welding tip x 2
3mm x 6mm (1/8” x 1/4”) nipple
6mm (1/4”) female/female ball valve
6mm (1/4”) male to 3/8” male flare fitting/adapter

Added since video on gas bottle side of ball valve:
0-60 PSI pressure gauge, 1/4” male thread
1/4” tee
1/4” x 1/4” nipple
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