JOTUL KENNEBEC OVERFIRING?

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blowell

New Member
Sep 24, 2010
95
N. Eastern MA
I noticed a few ash-colored spots on the front door of my Jotul C 450 Kennebec. It seems to be primarily on the front edges of the two doors, but only in the middle (where the two doors meet). I've never actually seem the temp too far above 650 (and not very often), but maybe that is too high?? I've never seen the thing glow, and nothing appears warped?

Why the ash coloration? Any advice will be greatly appreciated!

Thanks everyone.
 
Need pics to know what you're talking about. I have the exact same stove (and, in fact, just picked up the exact same saw 2 days ago!) and have discolorations all over the place but nothing that looks out of the ordinary.

I know I have overfired once or twice, and both times it was from stuffing too much pallet wood (a 4x4 beam piece) very high in the fire box, right against the baffle plate. Once that piece really got going I started to see a glow on top and shut it down and put the fan on high and it was under control in 10 or 15 minutes. I seriously doubt you're overfiring based on the spots you're talking about. The manual only calls out a glowing case as overfiring, and you're staying within what I would consider a safe temperature range.
 
Thank you Clay. I don't know what the issue is. I've had the stove for about 2 years. The "white-ish" or ash coloring around the edges recently is just curious.

I took pics, but they just don't show the issue well enough.

I don't believed I've overfired it, but I don't really know. As you say, the manual doesn't give a temp number at all, which is a bit annoying, but I am sure Jotul has its reasons.
 
I get ash spots on the glass sometimes and I think it is from wood falling into the glass while its burning. I don't think overfiring would leave a mark on the glass. If anything I think it would clean the glass by burning off any soot build-up.
 
650 is not too hot
 
I don't understand why all of of sudden. I've been very kind to this stove - 650 is the max temp I've ever seen; I wouldn't think I would be even close to an overfiring temp.

I'm stumped.
 
Well if you're ever up around Beverly let me know so you can stop by and we'll talk wood burning. Take a look at my (IMO) well-seasoned C450. I've only had it as long as you have, but this year it has literally run about 16-20hours a day. I have no idea what temps I'm hitting but I bet I have some of the same ashy spots you're describing.
 
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