Hi all. Can't find much information on how much vibration noise is "normal" from my newly installed Jotul 450 wood burning insert. First time I fired it up the fan was unbearably loud with the majority of the noise coming from metal on metal rattling. If I push on the blower unit it'll go away for a second, then come back with a vengeance. My guess is the there's some runout on the shaft of the fan itself. Problem is, I've had service out twice now and they still don't think the blower fan needs to be replaced. First time they put a few shims here and there and told me it would be replaced if I called for service again. They they came back today and put fiberglass tape-gasket around the unit and some shims and it's better but if I touch it the noise comes back. To make things worse the service guy got pissed when I suggested the problem wasn't solved. I already have another call in for a replacement and the guy just left. I'm not interested in a band-aid solution for a near $4K product. My question is, what's normal in terms of vibration? Anyone else experiencing noise problems on their Jotul insert or have experience with someone who has? Does it sound like I'm not getting the kind of service I should? Thanks in advance!