Radiant heat is very simply the most comfortable form of heating!
Hold your hand over a hot cup of coffee and feel the heat. The logical
conclusion is that heat rises. Logical maybe, but incorrect! "Hot
air" rises but "heat" can travel in any direction in
the form of convection (moving air) conduction (direct contact) or
radiation (in the form of rays like from the sun).
That is why you can feel the heat of the cup when you place your hand
to the side of it. Radiant heat transfer is caused by a warm surface
giving up its heat to a cooler surface. The radiant heat travels in
the form of infrared light which is absorbed by the
cooler mass.
Whenever there is a temperature difference between two surfaces, both
surfaces will attempt to equalize. Radiant heat energy travels
through space without heating the space itself. It only turns into
heat when it contacts a cooler surface. Think of a cold sunny day
with no wind. Even a cold day without wind can feel comfortable due
to the energy transfer from the sun. Our human comfort relies just
as much on radiant heat transfer as it does on air temperature, yet
the majority of heating and air-conditioning professionals think only
in terms of air temperature. As a result, Americans are missing out
on a truly comfortable living environment in their own homes or places
of business. By controlling both the air temperature and the radiant
transfer, radiant panel systems deliver a comfort that is unsurpassed.
Radiant heat is like stepping in to sunshine!.
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