About: http://webisa.webdatacommons.org/10819833

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	Cast iron boilers require less maintenance, and last a long time, but venting and efficiency are an issue.
http://www.w3.org/ns/prov#wasQuotedFrom	hvac-talk.com