Why does a Wall Heating, compared to an Underfloor Heating, act more as radiant heating?

Surface heating systems operate on the principle of radiant heat: radiation transfers heat through infrared waves. When the waves hit furnishings and unheated surfaces, they are converted into heat. Solid elements in the room absorb the rays and release the gained energy back into the room as heat. The human body is thus warmed “from within.”

The rays spread out at a right angle to the surface. The human body is in direct radiation exchange with the floor with only a small percentage of the possible skin surface. In comparison, the radiation exchange with wall heating is higher, which is why wall heating is often perceived as more comfortable.

The human body is warmed "from within" by the principle of radiant heat. One feels comfortable even at lower room temperatures and can choose the temperature to be lower from the outset than with convection heating. This saves energy and costs.