When my installer put in my 1402 he cut a hole in the damper and ran the liner, wrapped up through. At the top of the chimney he stuffed high temp insulation down a few feet and then poured some cement like seal over top. Capped it with a cover and of course the flue cap. The liner is wrapped almost the whole way down wit a high temp blanket and mesh screen. It's in an old oversize masonary flue so there is definitely space around it.
My question is now after the fact, he didn't block the damper or form a plate as I read the instruction manual suggests. It also syas in lieu of that metod that you can seal the surround? How does one go about that? Isit really needed with the top side sealed 100%? I'm kinda lost on this one and could definitely use some opinions and solutions or am I ok with the way it it? My main conern with any ideas are safety 1st then efficiency after.
My question is now after the fact, he didn't block the damper or form a plate as I read the instruction manual suggests. It also syas in lieu of that metod that you can seal the surround? How does one go about that? Isit really needed with the top side sealed 100%? I'm kinda lost on this one and could definitely use some opinions and solutions or am I ok with the way it it? My main conern with any ideas are safety 1st then efficiency after.