I have been using my insert for 3.5 yrs. with learning from this forum, I realize that many folks fill the gap between the top plate and the liner itself with high temp silicone. My installer did not do this. When weather allows this is something I can easily remedy. Installer had put in a chimney double flue cap that covers the entire chimney top (and the two liners of course that are contained in this masonry chimney) Just wondering if with that set up any weather that may have found its way in the cap would have likely caused any problems. Things seem to be working well with operation of the insert. Thanks.
