About: http://webisa.webdatacommons.org/254383639

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	Condensing boilers are the most efficient available as they convert over 90% of the fuel they use into useful heat, compared to around 60% for an old-style boiler.
http://www.w3.org/ns/prov#wasQuotedFrom	ethicalconsumer.org