9.21.3.6 — Metal Liners

(1) The installation of fireplace inserts and hearth mounted stoves vented through the throat of a fireplace shall conform to CSA B365, “Installation Code for Solid-Fuel-Burning Appliances and Equipment”. (2) Fireplace inserts and hearth mounted stoves vented through the throat of a fireplace described in Sentence (1) may be installed in existing fireplaces only if a minimum thickness of 190 mm of solid masonry is provided between the smoke chamber and any existing combustible materials, unless the insert is listed for lesser clearances. (3) A fireplace insert installed in a masonry fireplace shall have, (a) a listed metal chimney liner installed from the insert collar to the top of the chimney, or (b) a direct sealed connection to the chimney flue where such provision is part of an insert conforming to Sentence 9.22.10.1. (1).