PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • I was trying to let the OP see for himself that his present boiler is clearly over sized.LL,There are a ton of different condensing boilers out there.
http://www.w3.org/ns/prov#wasQuotedFrom
  • heatinghelp.com