Assertion: damper's function | /r/CapableOf | allow smoke
Facets:
value: to escape up the chimney flue
type: PURPOSE
value: from a lit fire
type: TRANSITIVE-OBJECT
Source sentences:
text: The function of the damper is to open to allow smoke and gas from a lit fire to escape up the chimney flue, while providing a mechanism while closed for preventing drafts and heat loss when a fire is not lit.