About: http://webisa.webdatacommons.org/111306768

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	Unless you live close to the ocean or other salt water source, I would say that coil coating is reacting to water and corroding.
http://www.w3.org/ns/prov#wasQuotedFrom	hvac-talk.com