How much has that model evolved? Ran across one that was used quite a bit over the years and needs to have the cat replaced. Any other interior components known to fail? Stone is all good and the entire exterior looks very nice. I have not had the chance to see it in person. Anybody have actual real world burn times? Just poking around for some info tonight!

![[Hearth.com] 1992 Woodstock Keystone info request [Hearth.com] 1992 Woodstock Keystone info request](https://www.hearth.com/talk/data/attachments/177/177475-5f0eb77851b278755948ec4822cb50f7.jpg?hash=F486361TR6)