How to make a propane jet burner:
Note: the pipe is 1/2″ not 3/4″ as I mistakenly said in the beginning part of the video.

In a previous video I made a super sized propane jet burner. This is a follow up video after I received a few requests on how to make a smaller one. This is a single jet burner that I estimate pushes out around 80,000-100,000 BTUs.

This burner can be used for boiling large pots of water or oil for cooking seafood or deep frying.

The build requires some welding but it could be brazed as well or you can see if a welding shop or automotive repair shop will weld everything in place once the parts are fabricated and fitted. Total time of welding is less than 5 minutes.

Parts:
3″ OD x 6″ Schedule 40 steel pipe
1/2 steel pipe
High Pressure Propane Regulator or 3-5 PSI regulator
1/2″ steel pipe
1/2″ steel cap
1/2″ to 3/8″ reducer bushing or
Fittings to plumb the burner to the propane source
1.2 or 1.3 mm drill bit
Metal tape

source