Assertion: tankless water heater | /r/HasProperty | vented
Facets:
value: improperly
type: DEGREE
Source sentences:
text: The natural gas fueled water heater shown at page top is improperly vented, lacking the recommended minimum 12" of vertical rise before the elbow and vented directly into a large masonry flue where it cannot develop adequate draft.
text: Tankless electric water heater doesn’t expect to be vented.