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Wednesday, 24 June 2015


Portable heaters, from simple metal pots to cylindrical structures enclosed by metal bands, were used in ancient Egypt and Greece. The smoke they produced escaped either through the doors of the building or through a hole in the roof.

Warm and hot rooms in Roman times had underfloor heating (hypocaust) with hot air channelled from furnaces.

Jesse Fell, an early political leader in Wilkes-Barre, Pennsylvania, was the first to successfully burn anthracite on an open air grate. His experiment in 1808 led to the widespread use of coal as the fuel source that helped to foster America's industrial revolution.

Edwin Ruud (1854–1932) was a Norwegian mechanical engineer and inventor who immigrated to the United States and invented the automatic-storage water heater in 1889. His automatic storage tank-type gas water heater  used a bottom gas heater and temperature controlled gas-valve.

Icelandic houses are heated with thermal waters from natural geysers and hot springs.

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