A chimney flue that serves a fireplace or incinerator shall not serve any other appliance.
A chimney flue that serves a solid-fuel-burning appliance shall not be connected to a natural-gas- or propane-fired appliance.
A chimney flue that serves a solid-fuel-burning appliance shall not be connected to an oil-burning appliance unless the solid-fuel-burning appliance is certified for such installation and the installation of both appliances meets the requirements of the relevant standards referenced in Article 9.33.5.2.
9.21.2.2.
Connections of More Than One Appliance
Except as required by Article 9.21.2.1., where two or more fuel-burning appliances are connected to the same chimney flue, the connections shall be made as described in Sentences (2) to (4) and an adequate draft shall be provided for the connected appliances in conformance with the requirements of applicable provincial or territorial regulations or municipal bylaws or, in the absence of such regulations or bylaws, with the requirements of the relevant standards listed in Subsection 9.33.10.
Where 2 or more fuel-burning appliances are connected to the same chimney flue, the appliances shall be located on the same storey.
The connection referred to in Sentence (2) for a solid-fuel-burning appliance shall be made below connections for appliances burning other fuels.
The connection referred to in Sentence (2) for a liquid-fuel-burning appliance shall be made below any connections for appliances burning natural gas or propane.
9.21.2.3.
Inclined Chimney Flues
Chimney flues shall not be inclined more than 45° to the vertical.
9.21.2.4.
Size of Chimney Flues
Except for chimneys serving fireplaces, the size of a chimney flue shall conform to the requirements of the appliance installation standards referenced in Sentences 9.33.5.2.(1) and 9.33.5.3.(1).
Where a chimney flue serves only one appliance, the flue area shall be at least equal to that of the flue pipe connected to it.
9.21.2.5.
Fireplace Chimneys
1) The size of a chimney flue serving a masonry fireplace shall conform to Table 9.21.2.5.-A or 9.21.2.5.-B.
Table 9.21.2.5.-A
Diameter of Round Flues for Fireplace Chimneys
Forming Part of Sentence 9.21.2.5.(1)
Table 9.21.2.5.-B
Rectangular Flue Sizes for Fireplace Chimneys
Forming Part of Sentence 9.21.2.5.(1)
9.21.2.6.
Oval Chimney Flues
1The width of an oval chimney flue shall be not less than two-thirds its breadth.
