Assertion: electric heater's thermostat | /r/CapableOf | increase its opening
Facets:
value: progressively
type: MANNER
value: in response to temperature changes
type: CAUSE
Source sentences:
text: Once the operating temperature is reached, the thermostat progressively increases or decreases its opening in response to temperature changes, dynamically balancing the coolant recirculation flow and coolant flow to the radiator to maintain the engine temperature in the optimum range.