(1)
Except for chimneys serving fireplaces, the size of a chimney flue shall conform to the requirements of the solid fuel-burning appliance installation standards referenced in Sentence 6.2.1.4.(1) and Article 9.33.5.3.
(2)
Where a chimney flue serves only one solid fuel-burning appliance, the flue area shall be at least equal to that of the flue pipe connected to it.