The radiant panel terminal in ceiling or wall provides either radiant heating or cooling. A constant volume air stream is supplied for ventilation and dehumidification.

Panel heating and cooling systems provide an acceptable thermal environment by controlling surface temperature within an occupied space, thus affecting the radiant heat transfer. With a properly designed system, a person should not be aware that the environment is being heated or cooled. The mean radiant temperature (MRT) has a strong influence on body comfort. When the temperature of the surfaces comprising the building deviates excessively from the ambient temperature (particularly outside walls with large amounts of glass), convective systems sometimes have difficulty in counteracting the discomfort caused by cold or hot surfaces. Heating and cooling panels neutralize these deficiencies and minimize radiation losses or gains by the body.

P28 radiant panel (not yet available, don’t use old picture)