Trench heater FRK with natural convection.

FRK trench heaters with natural convection are installed under glazing covering the entire area of buildings. Trench heaters form a thermal barrier to keep the flow of cold air from the window surface. A part of warm air is directed inwards and heats residential spaces. The trench heaters are normally used as additional heating combined with other types of heating. If the heat output of the trench heater is sufficient the trench heater may also be used as the main heating system. These trench heaters are also suitable to adjust temperatures in entrance halls, commercial areas and long corridors.
A great range of the heights and widths of the trench heaters gives the designer many options how to fi t the model with the required output in the configuration of the floor. Necessary data are presented in data sheets for individual products.