The sun, our source of life, is our source of heat and light. It is the sunlight that enables creatures to live, complete their energy cycle, and grow. We feel a warmth on our bodies, even in the winter, when the sunlight comes through the clouds. This does not mean that the earth suddenly warms up. We feel warm because of the photons, which constitute the rays of light, leaving their energy on the surfaces they hit. Along with the visible light, infrared rays reach the Earth from the sun as well. The infrared rays are the rays transferring the heat most efficiently and contributing to the warming of the Earth.
The operation principle of UFO Infrared Heaters is based on this phenomenon. The heater begins emitting medium wave infrared rays in a mere 30 seconds.