Are 15 gallon keggles too large to realistically run 5 gallon batches?
Nope I recently picked one up and love it for brewing, never fear the boil over again.
Nope. I do 5-gallon batches of my bigger beers (RIS, IIPA) and use my keggle. But you can still have a boil over.
*******Check Out My Rolling KegeratorBierMuncher Tried & Trues: Tits-Up IIPA (3-Time Medalist), Black Pearl Porter, Kona Pale Ale, Outer Limits IPA, Centennial Blonde (4.0%), Nierra Sevada (SNPA), SWMBO Slayer Belgian Blonde,
What kind of chiller are you using?? Can an immersiion get in there under enough wort to be effective or are you using a counterflow?
I just use an immersion chiller, I think it works well. Probably more efficient ways out there though, there always seems to be.