The Ontario Building Code | Fire Chamber Dimensions
9.22.4.1. Fire Chamber Dimensions
(1) The distance from the back of the fire chamber to the plane of the fireplace opening shall be not less than 300 mm.
9.22.5. Hearth
9.22.4.1. Fire Chamber Dimensions
(1) The distance from the back of the fire chamber to the plane of the fireplace opening shall be not less than 300 mm.
9.22.5. Hearth
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