Lower settings 1-5-1?? Older PDVC? Holy Sh*t! Nonetheless that's great results! This morning I checked the mode and found it to be in "a" when in fact it should have been in "d". Anyway, I switched it to "d" and lowered my bottom settings to 5-4-1. It's burning now just fine and definitely not cooking us like last night. I will definitely be playing with low burn feed a tad. A quick adjustment to the hopper lid made a better burn too!! **Update** Ok, well after tinkering a bit more last night I ended going with 4-4-1 and I may drop the LBF more eventually. Either way it's a nice added treat to my basement family room.