Assertion: boiler | /r/CapableOf | draw heated air
Facets:
value: into the unit
type: TRANSITIVE-OBJECT
value: for combustion
type: PURPOSE
Source sentences:
text: Furnaces and boilers that are not sealed-combustion units draw heated air into the unit for combustion and then send that air up the chimney, wasting the energy that was used to heat the air.