I've converted a smaller propane burner to NG using an additional brass fitting to step it down in size. I think you would have to do the same with this burner. It never worked as well as I would have liked. Propane fittings are usually smaller due to the increased pressure and higher heat output than NG.
I'm in the process right now. took the fitting off and drilled it to .156 dia. turned 3/8 flare end to .380 dia. for 3/8 hose barb. works ok now but not perfect. little yellow left on the flame yet. had 2 co2 monitors, and nothing. 30$ inline duct fan from HD for exhaust.
Found those tables for orafice sizes. Thanks Bobby M. i think. I live in the midwest. I clled my local gas supplier, they said that we run 7 to 7.5 in the winter time. ( don't know why the change ) Drilled up to .182 as per chart for my 100,000+ Bayou Classic. Viola, blue flame little yellow. Drilled 2, .250dia. holes in the back of venturi tube. ( make them different distances from center so you can rotate 180 to use propane again ) I think that I will need to drill the holes in the cast iron as big as .500 and file open the holes i made in the rotating restrictor plate th slots. It just seems to want more air flow. Inside with natural gas can fix any rainy day.
I just converted on today. I used a 5' propane hose that I bought at Menard's. The hose has a 3/8" male pipe thread on one end and a 3/8" female pipe thread on the other. I screwed the male end into the cast iron burner and the other end onto a gas valve that already came with a 3/8" male flare on it. The 1/4 turn gas valve only needs to be opened half way (45 degrees) for the burner to have a nice flame. Once I find a needle valve I will mount it on the burner input port to have finer control on the flame. Our brew club also has a Blickmann burner which is identical to the Bayou Classic that I converted.
I just converted on today. I used a 5' propane hose that I bought at Menard's. The hose has a 3/8" male pipe thread on one end and a 3/8" female pipe thread on the other. I screwed the male end into the cast iron burner and the other end onto a gas valve that already came with a 3/8" male flare on it. The 1/4 turn gas valve only needs to be opened half way (45 degrees) for the burner to have a nice flame. Once I find a needle valve I will mount it on the burner input port to have finer control on the flame. Our brew club also has a Blickmann burner which is identical to the Bayou Classic that I converted.
So you just took the orfice out of the equation? That seem much more simple than drilling out the orfice. Please correct me if I'm wrong and misunderstanding.
I took out the existing brass fitting with the very small orifice and replaced it with the 3/8" male pipe thread fitting that is on the one end of the 5' propane hose that I bought at Menards. The other end has a 3/8" female flare fitting that was screwed on to the gas valve. The gas valve on our application only needs to be opened a quarter turn. It works great.
So you just took the orfice out of the equation? That seem much more simple than drilling out the orfice. Please correct me if I'm wrong and misunderstanding.
So yes, the orifice is basically out of the equation so to speak. Keep in mind that 10" burners are ideal for conversion because they allow more volume to combust thus more BTUs. You can convert a 4" burner but it won't put out much more BTUs than a stove top burner since both are very close in size. But I suppose not having to worry about propane tanks is always a plus.
Bayou Classic BG14 Banjo Burner with Natural Gas
Linear Mode
