Originally Posted by DigityDan
What PSI have you been running it at?
I just put three of these into my single tier.
FYI, I run an SQ-14 type ring burner on a 0-10 psi variable pressure regulator. IMO, this burner is one of the best choices for home brewing use. I use it to boil 12 gallon (pre-boil near 14 gal) batches regularly with no problems at all. Pouring on massive amounts of BTU's may get you to a boil a little faster, but it also wastes a huge amount of fuel in the process. It's one of them diminishing returns things. IOW, it's not at all linear. The ring type burner is also an excellent choice for use on a direct fired RIMS as it distributes the heat much better than the cup type diffuser burners. You can also control the flame on the ring burners much more precisely, especially at very low flame levels.