Heat radiations move with speed of light cross the room. There they will be delegate of a warm surface as a long wave radiant energy. When this heat radiation strike on an surface of a corpus and would be absorb by it, then it transform it into heat.
So heat becomes principal when the radiant energy would be affiliated by a surface. Thereby they change into heat energy.
This system will demonstrated of the naturally heat source of the world – the sun.
radiant heat
- radiator: 17 % radiant heat, 83 % convection heat
- floor heating: 55 % radiant heat, 45 % convection heat
- air-handling ceiling: 90 % radiant heat, 10 % convection heat