Assertion: heat pump's efficiency | /r/HasProperty | improved
Facets:
value: greatly
type: DEGREE
value: by using seasonal thermal energy storage
type: MANNER
Source sentences:
text: The efficiency of ground source heat pumps can be greatly improved by using seasonal thermal energy storage and interseasonal heat transfer.
text: Also the efficiency of existing small heat pump installations can be improved by adding large, cheap, water filled solar collectors.