Assertion: source heat pump | /r/Desires | stream
Facets:
value: to work
type: PURPOSE
Source sentences:
text: 1 Most people opt for either a ground or air source heat pump because water source heat pumps need a lake, river, stream or other body of water to work, and most of us don't have one of those in our garden.
text: 1 Most people opt for either a ground or air source heat pump as water source heat pumps need a lake, river, stream or other body of water to work.