Search results
Results from the WOW.Com Content Network
The "Vortex Action" technology and uniquely-designed blade was also used for Vornado-branded heaters, air purifiers, and humidifiers. Between January 1989 and August 1990, Vornado sold about 135,000 of its fans with a distinctive spiral front grille. In August 1990, competitor Duracraft began offering a cheaper, visually similar fan, and by ...
A lot of people will also use the same space heater for years, Lambert points out. "Older space heaters may not have modern safety features," he says. That also raises their risk of causing a fire ...
An industrial furnace, also known as a direct heater or a direct fired heater, is a device used to provide heat for an industrial process, typically higher than 400 degrees Celsius. [1] They are used to provide heat for a process or can serve as reactor which provides heats of reaction.
Salamander heaters date back to at least 1915. In the early 1940s, W.L. Scheu of Scheu Manufacturing Company, a producer of temporary portable space heating equipment, developed the modern salamander heater to provide warmth to allow construction crews to work in inclement weather. Sales spread across the US, and by the 1950s, to Europe.
A fan heater, also called a blow heater, is a heater that works by using a fan to pass air over a heat source (e.g. a heating element). [1] This heats up the air, which then leaves the heater, warming up the surrounding room. They can heat an enclosed space such as a room faster than a heater without a fan, [2] but like any fan, create a degree ...
Another common use for heaters is to warm up components to their minimal operating temperatures before the components are turned on. The most common type of heater used on spacecraft is the patch heater, which consists of an electrical-resistance element sandwiched between two sheets of flexible electrically insulating material, such as Kapton ...
Catalytic space heaters generate infrared heat to raise the temperature in a given area. [2] In addition to the larger catalytic heaters there are also small hand warmer or pocket heaters that use a catalyst combustion unit. Current units use a glass fiber substrate coated with platinum. Cheaper units may use other catalysts that do not work as ...
The crankcase heater keeps refrigerant at a temperature higher than the coldest part of the system. A crankcase heater generally has the same electrical symbol as a resistor because it converts electricity directly into heat via electrical resistance. The resistance in the heater coil determines the heat it produces when voltage is applied. [1]