PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Radiant floors/walls/ceilings are in an entirely different category from the duct systems and the tubing and installation is a large part of the radiant installation costs.
http://www.w3.org/ns/prov#wasQuotedFrom
  • hvac-talk.com