I swear my 1993 Jotul Firelight 12 must sing more than most, particularly since I re-gasketed the doors and glass. Plenty of pinging on the way up and down, to tell me exactly what she's doing. That's all good. But what really gives me the heebie jeebies is the low roar the stove makes on a big load of wood. Being a downdraft stove, I need to get her going pretty good before I engage the cat. The following hour, particularly if loading a bunch of smaller branchwood as I did tonight, is sometimes a little to "musical" for my liking. Sounds like a jet engine roaring in or around my stove. No, it's not a chimney fire... running on a brand-new insulated stainless liner right now. But, when I hear the roar start, I know I'm in for a bumpy ride... turn down too far, and back-puffing will commence. Sometimes violently. Open up the air too wide, and stove goes into overfire mode. In all cases, it's on a big load of wood, most often a bunch of small branchwood. Unfortunately, I'm burning a lot of small stuff, while the bigger stuff seasons another year.