Well forever really, but....
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.
You can find out more about infrared on our website HERE!
Multiheat are specialists in domestic & commercial infrared heating panels!
The ramblings of a far infrared heating specialist blogging about our heaters, our industry and what it is like to run a business!
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