sealing decorative stove but need for occasional fire.

Hi guys, first post in this room. I am running the Woodstock Ideal Steel hybrid for primary heating. I also have a 70's Franklin style stove that is sitting on my upstairs hearth mainly for decoration and the occasional open fire. There is an exhaust damper that I keep closed. The stove pipe goes into a masonry chimney that I keep swept. No insulation. Currently I just jam a handful of roxul insulation up the pipe from the inside of the stove. I leave an item in the stove to remind me the insulation is in there. Should I be doing more to seal this off? Any thoughts?

 

The wad of roxul seems fine to me, should stop all the drafts.

 

Is there a need for that stove Jeff? I mean do you need supplemental heat or is the IS doing ok?

 

I think you're doing about as best you can do.