People sometimes buy natural gas burners that their source piping just cannot supply adequately. People like me that is. Then there is an issue with having way too much heat to be practical. The cheap 23-tip burners are claimed to put out anywhere from 80K to 140K BTU depending on the store you buy them from. I would have gone with 10-tip if they weren't twice the price and equally hard to find.
Anyway, enough chit chat, you can order a whole box of M8-1.0 pitch (Metric Fine Thread) bolts for about $10 from Mcmaster.com and plug up as many tips as you want. The burner will require less pressure/flow from the source and still maintain a good burn. I'm just guessing here, but if 23 tips (burning well) produce about 100,000 BTU, each tip does about 5,000.
So, I plugged 12 tips to leave 11 burning for about 55kBTU. This keeps 12 gallons at a ROLLING boil at half valve. For any tips that fired directly at each other, which contributed to a hot spot, I blocked off one. You can see how each flame kind of fires on its own. I hope this helps those of you who find them too hot (or burning crappy due to inadequate supply).
Anyway, enough chit chat, you can order a whole box of M8-1.0 pitch (Metric Fine Thread) bolts for about $10 from Mcmaster.com and plug up as many tips as you want. The burner will require less pressure/flow from the source and still maintain a good burn. I'm just guessing here, but if 23 tips (burning well) produce about 100,000 BTU, each tip does about 5,000.
So, I plugged 12 tips to leave 11 burning for about 55kBTU. This keeps 12 gallons at a ROLLING boil at half valve. For any tips that fired directly at each other, which contributed to a hot spot, I blocked off one. You can see how each flame kind of fires on its own. I hope this helps those of you who find them too hot (or burning crappy due to inadequate supply).