Floor heating is one of the radiant heating methods. The proportion of a radiant component to a convection component in the overall heat transfer from the heating surface is 55% : 45 %. Floor heating differs from a classical convection heating (radiator heating, convector heating) by the method of heat transfer and temperature conditions in rooms.
In convection heating the heater transmits heat to the surrounding air which then transfers heat to the walls. A typical fact of this method is that the air temperature in the room is higher than the wall temperature. A characteristic of air circulation is increased dustiness in the conditioned area, and a high difference in air temperatures between the ceiling and at floor level.
Unlike the convection heating, floor heating is characterized by a uniform temperature distribution and also reduces the need for air circulation which ratifies dustiness in your home. A by product of radiant heating is the heating of your walls, furniture and all objects in your room including the people in the room, which in turn also radiate heat into the room. Optimally, the relative humidity is maintained which is beneficial to the respiratory system. The specific output of floor heating depends, among other effects, also on the temperature of the floor. The surface temperature of the floor must be relatively low, 25 °C to 35 °C, not to exceed the hygienic set value. The maximum temperature of the heating medium is limited to 50 °C due to which floor heating is one of the low-temperature heating methods suitable for the use of energy obtained from low-potential sources.
The ideal method of heating is heating with such a temperature distribution in the room where the temperature in the head area is by about 2 °C to 3 °C lower than the temperature in the feet area. Hot water floor heating is the best method of achieving this. In addition to that, lowering the temperature by 2 °C to 3 °C means saving of energy, required for heating, by 12% to 18%.