About: http://webisa.webdatacommons.org/22062527

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	The circulation may be passive or active, for example relying on a pump, compressor or fan (not shown) to actively circulate the heat transfer medium.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com