Originally Posted by Theis
I sometimes have problem with my regulator similar to the one you describe. I turn off the main propane valve. Close the needle valve on the regulator. Then I open the main propane valve slowly, once it is open then I slowly turn the needle valve open and start the flame. It seems like if you hit it all at once there must be some safety that engages and limits flow.
A belated thank you for this response. I had the same thing happen while brewing last night - could not get a big flame, and opening the regulator wide open had no effect. I did a search on my smart phone while brewing in the garage and found this answer.
I tried those steps and was off and boiling in no time. HBT win (again).