Assertion: flue | /r/HasProperty | above the chimney crown
Facets:
Source sentences:
text: 4 Select a chimney cap that has a dimension that is similar or close to the inside diameter of the flue pipe if your flue pipe is 1 inch or less above the chimney crown or if it is a double-walled air insulated flue pipe, also called a double-walled air-cooled flue pipe.
text: 5 Select a chimney cap that fits over the outer perimeter of the flue pipe with a diameter similar to the outer diameter measurement of flue pipes that are more than 1 inch above the chimney crown.