I think I've seen a similar thread here before but can't find it. I've never been able to get my MBXL to run cool enough. I live in south Texas where it's always on the warm side outdoors. When I get the temperature in the box down in the 250f range, the burner is turned down so low that any slight breezed blows out the flame. If I get a stable flame, the temp goes up over 300F. I've tried taping up the sides of the box the burner is in and even taping cardboard around the base to stop the breeze. I've installed a needle valve with no help. Anyone have any recommendations on a smaller BTU propane burner that I could install? It seems that something roughly 50% smaller would be about right. THANKS in advance!!