Energy-efficient heating with infrared

Heating with infrared offers an additional advantage. It is especially energy efficient. The thermal comfort of the SALT VITALHEATER comes about through the interplay of air and wall surface temperatures in the room. The most comfortable temperature is approximately halfway between these two different temperatures. Convection or warm air heaters are only perceived as comfortable when the walls of the room reach a certain basic temperature.  If, for example, the air temperature is 20°C, the temperature of the walls must be at least 16°C. In the case of radiant heaters (IR heaters), the situation is precisely the opposite. The walls of the room are warmed and a significantly lower air temperature is necessary in order to feel comfortably warm. If the temperature of the walls is 22°C, then the air in the room only needs to be 15°C in order to feel the same level of comfort. In terms of energy, this highly beneficial constellation of warm surfaces and comfortably cool air in the room can only be achieved by radiant heaters, not by convention heaters or warm air heaters.  This is depicted clearly in the diagram from Bedfort and Liese (image on right). Another advantage arising out of the principle of radiant heating is the reduced rate of air exchange. Undisturbed air in the room means less disturbance of dust. And that also means you no longer need to ventilate the room as often as before, resulting in further energy savings. Using convection heating, an increase in room temperature of 1°C requires a 6% increase in energy (per 1°C). 

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