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Winnipeg Infrared Heaters
You probably learned about infrared light when you studied wavelengths in science class. You also might have heard of infrared radiation or infrared technology, just from casual tidbits on TV commercials or in magazines. But to be honest, you've either forgotten or never really understood the science behind wavelengths and light spectrums. So you pretty much draw a blank when you try to figure out what infrared heaters do.You might remember that infrared light isn't visible because it's beyond the spectrum we can see. That's the gist of an infrared heater: The heat is a product of light that is invisible to our eyes. The reason we get warm from an infrared heater is because our skin and clothes absorb the light. It's like the difference between being directly in the sunlight versus sitting in the shade. You feel warm in the sun because the light that hits your clothes and skin keeps you warm, but when you're in the shade, the light doesn't reach you as well.There are several kinds of infrared heaters. Some might direct their infrared light straight into a room or space to create heat on the object it reaches. Other infrared heaters contain three parts that create heat: infrared light bulbs, a heat exchanger (such as a good metal conductor like copper) and a fan that blows air onto the exchanger to create the heat.Infrared heaters also differ in fuel source and construction material. There are propane, natural gas and electric heaters. Some are ceramic, and there are also portable ones.Infrared heaters have certain specifications and should be used only in certain situations. These heaters may be more environmentally friendly. Click to the next page to read more about some of the specifications of infrared heaters.Theoretically, the efficiency of an infrared heater nearly 100% as it converts almost all electrical energy into heat in the filament. The filament then emits its heat by infrared radiation that is directly or via a reflector impinging on the product to be heated. Some energy is lost due to conduction or convection.For practical applications, the efficiency of the infrared heater depends on matching the emitted wavelength and the absorption spectrum of the material to be heated.For example, the absorption spectrum for water has its peak at around 3000 nm. This means that emission from medium-wave or carbon infrared heaters are much better absorbed by water and water-based coatings than NIR or short-wave infrared radiation.The same is true for many plastics like PVC or polyethylene. Their peak absorption is around 3500 nm. On the other hand, some metals absorb only in the short-wave range and show a strong reflectivity in the medium and far infrared. This makes a careful selection of the right infrared heater type important for energy efficiency in the heating process.Ceramic elements operate in the temperature of 300°C to 700°C (572°F - 1292°F) producing infrared wavelengths in the 2 - 10 micron range. Most plastics and many other materials absorb infrared best in this range, which makes the ceramic heater the most efficient infrared radiant emitter on the market.
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