Assertion: furnace's hearth | /r/CapableOf | interfere with other furnace internals
Facets:
Source sentences:
text: After a number of such cycles, the hearth rises far enough to interfere with other furnace internals, and the wall bricks above the rising hearth (or hearths) apply pressure to the internal wall projections such as burners and thermocouples, damaging them as well as the bricks.