We have a beautifull stone masonry chimney and dislike the idea of putting a large vertical termination cap on top (from an esthetic point of view). Rather than installing a sealed gas insert with co-linear venting, can we put a B-vent unit inside a masonry fireplace and terminate the single liner shy of the chimney top? We’re not concerned with the lesser efficiency of a B-vent unit as we only want the insert for its ambiance.
What would be the possible negatives in doing this?
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