Assertion: closed flue | /r/ObjectUse | used for appliance
Facets:
Source sentences:
text: A closed flue is used for appliances or ovens situated in a closed room where it is desired that the primary source of oxygen not be from the same room.
text: : A closed flue is used for appliances or ovens situated in a closed room where it is desired that the primary source of oxygen not be from the same room.