Assertion: heat | /r/HasProperty | extracted
Facets:
value: from outdoor air
type: LOCATION
value: usually
type: DEGREE
value: from seawater
type: LOCATION
Source sentences:
text: Heat is extracted from seawater (from 60-foot (18 m) depth) that is 8 to 9 °C all year round, giving an average coefficient of performance (COP) of about 3.15.
text: Usually heat is extracted from outdoor air and transferred to an indoor water tank, another variety extracts heat from indoor air to assist in cooling the space.