Infrared radiation was discovered as long ago as 1800, when an English astronomer discovered the existence of infrared energy beyond the red end of the visible light spectrum. He found that when sunlight was passed through a glass prism it formed a spectrum, if a thermometer was then moved along the spectrum of colours the heating effect could be monitored, moving the thermometer beyond the red end of the spectrum where no light was visible the heating effect increased. This new region of the electromagnetic spectrum was called the infrared.
Near infrared is now commonly used in patio heaters that give off an orange light glow, our panels use far infrared which has no visible colour or light. Only rays which fall into the 0.75 to 15 microns do the heating, the most efficient spectrum for heating is 6 to 10 microns, in tests our panels produce 99.82% of its output from the far infrared range and more than 90% in the optimum spectrum range.
You can find out more about infrared heating and our panels on our website:-
http://www.multiheat-energysystems.co.uk/technical-information/infrared-information
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