Assertion: solar water heater | /r/CapableOf | use sunlight
Facets:
value: to heat water
type: PURPOSE
Source sentences:
text: They use sunlight to heat water directly, as opposed to solar panels (which use sunlight to produce electricity, which in turn powers an electric heater which then heats the water.
text: They can be used in any climate, and the fuel they use sunshine is free.