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What Is Radiant Heat?

Radiant heating is the emission of a certain type of energy, to be precise “heat energy” from a heat source. It is a comfortable type of heat that is now being used to heat buildings - via radiant heat, also called thermal heat, rather than the other forms of heating like convection heating.

So what is different from radiant heat compared to other heat sources? Radiant heat is the heat that passes through materials that conduct heat. It includes infrared, visible and ultraviolet radiations. Unlike convection heating where the heat is produced due to the motion of fluids, radiant heat is produced by the explosion of a nucleus where heat is transfer from a heated surface to a cooler one in the form of electromagnetic waves which make the cooler surfaces heat up but it does not heat up the space in between them.

Heating buildings with the use of radiant heat was already a practice by the ancient Romans with their concept of central heating. Now, Korea and China are also radiant heat users by using the underfloor radiant heating method to keep them warm in the winter months.

Radiant heat can be classified into 4 systems most commonly used today:

• Overhead gas fired radiant heaters
• Wall heating system
• Radiant overhead ceiling panels
• Underfloor radiant heating system

Unlike convection heating that if used outdoors tends to be impractical because the air will just blow the heat away, radiant heating system only targets the specific area preferred being more practical that way.

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