File:Lamneck-central-heating-gas-furnace-cutaway-diagram.png

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Description
English: A cutaway diagram of a Lamneck central heating gas furnace.
Date
Source Report of the Househeating Committee, American Gas Institute, 1917, pg. 15 on Google Books
Author American Gas Institute

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This work is in the public domain in the United States because it was published (or registered with the U.S. Copyright Office) before January 1, 1929.
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Note: This tag should not be used for sound recordings.PD-1923Public domain in the United States//commons.wikimedia.org/wiki/File:Lamneck-central-heating-gas-furnace-cutaway-diagram.png

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This work is based on a work in the public domain. It has been digitally enhanced and/or modified. This derivative work has been (or is hereby) released into the public domain by its author, Gazebo. This applies worldwide.

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Date/TimeThumbnailDimensionsUserComment
current07:59, 25 June 2014Thumbnail for version as of 07:59, 25 June 2014509 × 665 (147 KB)Gazebo (talk | contribs){{Information |Description ={{en|1=A cutaway diagram of a Lamneck central heating gas furnace.}} |Source =[http://books.google.com/books?id=TysyAQAAMAAJ ''Report of the Househeating Committee''], American Gas Institute, 1917, pg. 15 on {{w|G...

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