About: http://webisa.webdatacommons.org/440930601

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 heat exchanger is the most expensive part of the furnace, and a long warranty ??? say 20 years or more ??? is often also a good indicator of how reliable the manufacturer feels the furnace is in general.
http://www.w3.org/ns/prov#wasQuotedFrom	inman.com