Furnace (central heating) (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Furnace (central heating)" in English language version.

refsWebsite

Global rank English rank

1books.google.com

3^rd place

3^rd place

1wikisource.org

27^th place

51^st place

2,081^st place

1,387^th place

1greenleafair.com

low place

low place

1web.archive.org

1^st place

1^st place

books.google.com

Johnson, Bill; Standiford, Kevin (2008-08-28). Practical Heating Technology. Cengage Learning. p. 116. ISBN 978-1418080396.

energy.gov

US Dept. of Energy. "Furnaces and Boilers". US Dept. of Energy.

greenleafair.com

Ahmed, Rifat (2020-06-01). "Handbook on Single, Multi & Variable Speed Furnaces" (PDF). Green Leaf Air. Archived (PDF) from the original on 2020-07-05. Retrieved 2020-08-17.

web.archive.org

Ahmed, Rifat (2020-06-01). "Handbook on Single, Multi & Variable Speed Furnaces" (PDF). Green Leaf Air. Archived (PDF) from the original on 2020-07-05. Retrieved 2020-08-17.

wikisource.org

en.wikisource.org

Chisholm, Hugh, ed. (1911). "Furnace" . Encyclopædia Britannica. Vol. 11 (11th ed.). Cambridge University Press. p. 358.