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2. Infrared heater - Wikipedia

   en.wikipedia.org/wiki/Infrared_heater

   Industrial infrared heaters sometimes use a gold coating on the quartz tube that reflects the infrared radiation and directs it towards the product to be heated. Consequently, the infrared radiation impinging on the product is virtually doubled.

3. Space heater - Wikipedia

   en.wikipedia.org/wiki/Space_heater

   These heaters are often designed such that the frequency of the emitted waves are in the infrared part of the electromagnetic spectrum. The materials used in radiant heaters can vary. Halogen heaters have tungsten filaments in sealed quartz envelopes, mounted in front of a metal reflector in a plastic case. They operate at a higher temperature ...

4. Infrared lamp - Wikipedia

   en.wikipedia.org/wiki/Infrared_lamp

   Infrared heating uses infrared lamps, commonly called heat lamps, to transmit infrared radiation to the body that is being heated. When a body with a large surface area needs to be heated, an array of infrared lamps is often used. The lamp commonly contains an incandescent bulb that produces infrared radiation.

5. Heating element - Wikipedia

   en.wikipedia.org/wiki/Heating_element

   Gold-coated – HeLeN quartz infrared heat lamps as originally patented and manufactured by Philips. A gold dichroic film is deposited on the inside that reduces the visible light and allows most of the short and medium wave infrared through. These tubular quartz lamps are designed for services other than illumination. [11]

6. Halogen lamp - Wikipedia

   en.wikipedia.org/wiki/Halogen_lamp

   Contaminants, because they absorb more light and heat than the glass does, will create a hot spot on the bulb surface when the lamp is turned on. This extreme, localized heat causes the quartz to change from its vitreous form into a weaker, crystalline form that leaks gas. This weakening may also cause the bulb to form a bubble, weakening it ...

7. Electric heating - Wikipedia

   en.wikipedia.org/wiki/Electric_heating

   30 kW resistance heating coils This radiant heater uses tungsten halogen lamps. Electric heating is a process in which electrical energy is converted directly to heat energy. Common applications include space heating, cooking, water heating and industrial processes. An electric heater is an electrical device that converts an electric current ...