Editing Radiator (section)

==History==
The Roman [[hypocaust]] is an early example of a type of radiator for building space heating. [[Franz San Galli]], a [[Prussia|Prussian-born]] [[Russia]]n businessman living in [[St. Petersburg]], is credited with inventing the heating radiator around 1855,<ref>{{cite web
  |url=http://www.gruner-fam.de/SanGalli-E.html
  |title=Family Sangalli / San Galli
  |publisher=Gruner-fam.de
  |access-date=2011-09-20
}}</ref><ref>{{Cite web
  |archive-url=https://web.archive.org/web/20100207113505/http://www.votgk.com/press/energyhistory/sangalli/
  |archive-date=2010-02-07
  |url-status=dead
  |url=http://www.votgk.com/press/energyhistory/sangalli/ 
  |title=The hot boxes of San Galli
  |language=ru 
}}</ref> having received a radiator patent in 1857,<ref>{{cite web|url=http://www.saint-petersburg.com/german/franz-san-galli/|title=Franz San-Galli, German industrialist in St.&nbsp;Petersburg, Russia|website=www.saint-petersburg.com}}</ref> but American Joseph Nason and Scot Rory Gregor developed a primitive radiator in 1841<ref name="auto">{{cite web|url=http://www.heatinghelp.com/files/articles/1257/234.pdf |title=Archived copy |access-date=2014-08-23 |url-status=dead |archive-url=https://web.archive.org/web/20140826115728/http://www.heatinghelp.com/files/articles/1257/234.pdf |archive-date=26 August 2014 |df=dmy }}</ref> and received a number of U.S. patents for hot water and steam heating.<ref name="auto"/>