All this talk about runaway has this newbie scared to push my Napoleon 1402 probably like it should. Been burning now since mid October and still figuring it all out as most newbies. Mix of cherry and oak. Mm says 20% and I have split some large splits and rechecked. My stove likes the range of around 500. Secondaries seem to fire for awhile but when it dips below 500 they will kick off. I'm getting descent burns 5-6 hrs with plenty of coals for a good start in the a.m. Haven't checked the stack yet but appears good, limited to no smoke when burning. My question is am I not pushing this stove enough? Should I be in the 550-600 range more frequently? Or am I just a OCD newbie that is a freak about all the details this wood burning brings to a guy! Lol I just don't want any problems or the ole lady will nix this real quick!