Gasoline heater

A gasoline heater is a small, mounted or portable, gasoline-fueled, space-heating device.

Not to be confused with Gas heater.

In the United States they were used mainly for supplemental heat for the passenger compartments of automobiles and aircraft. Some aircraft continue to use gasoline heaters.

Operation

First, fuel is brought to the heater using piping from a fuel tank, or taps into the vehicle’s fuel system. A fan blows air into a combustion chamber, and a spark plug or ignition device lights the gasoline/air mixture. A built-in safety switch prevents fuel from flowing unless the fan is working. Outside the combustion chamber, a second, larger diameter tube conducts air around the combustion tube's outer surface, and a second fan blows the warmed air into tubing to direct it towards the interior of the vehicle. Most gasoline heaters produce between 5,000 and 50,000 BTU per hour.

Gasoline heaters require electricity to operate. Heaters were made compatible with 6-volt, 12-volt, and 24-volt automotive and aircraft electrical systems. The heater requires routine maintenance, such as regular inspection of the combustion tube, and replacement of the igniter at periodic intervals.

Safety

Because gasoline heaters are required to be vented, special care must be made to ensure the vents do not leak into the interior of the automobile or aircraft. Combustion byproducts include soot, sulfur dioxide, carbon dioxide, and some carbon monoxide. An improperly adjusted, fueled, or poorly maintained gasoline heater could be dangerous. In aircraft, several gasoline heaters have been the subject of safety directives.

History

Gasoline heaters were commercially available on automobiles starting in the 1930s with continued use until the 1960s, when they were almost entirely replaced with heating systems using engine coolant.

South Wind heaters

First advertised for automobiles in the 1930s, the South Wind Heater was invented by Canadian Harry J. McCollum.[1] In 1934, McCollum demonstrated his invention to the Stewart-Warner company in Chicago, and Stewart-Warner began production a short time later.[2] By 1948, Stewart-Warner had produced more than 3 million heaters for use in automobiles, aircraft, and military vehicles.[1]

Southwind (Stewart Warner) made the Model M978 heater for use in military vehicles in the 1950s and 1960s. Stewart Warner Southwind heaters could also be found on 1940s Fords, through early 1970s Volkswagens.

Other manufacturers

Other manufacturers over the years have included Janitrol.[3] One manufacturer now marketing current technology gasoline and diesel fuelled heaters is the Espar corporation, of Ontario, Canada; a wholly owned subsidiary of the German company J. Eberspächer, the world's largest manufacturer of vehicle heating systems;[4]

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See also

References
  1. South Wind heaters - warm memories of an old friend (jpg), 1972, retrieved 2009-03-01
  2. Lamm, Michael (1995), South Wind, AmericanHeritage.com, archived from the original on 2007-10-20, retrieved 2009-03-01
  3. Kelly Aerospace heaters, kellyaerospace.com, archived from the original on 2007-07-30, retrieved 2009-03-01
  4. How an Espar Airtronic air heater works, espar.com, archived from the original on 2007-08-21, retrieved 2009-03-01
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