It is difficult to imagine a world without the comfort of central heating, especially when you consider that early man had to figure out how to create fire first just to survive. Curious about how humans have managed to stay warm through the ages? Bob Jenson Air Conditioning and Heating explores the history of home heating, from the beginning of time and into the future.

http://www.bobjenson.com/blog/history-controlled-heating/

Loading

READ ALSO:  From Poor To Rich: How Much Sweat It Takes From Zero To Billionaire