fan-assisted trench heating

Comfortable heating of rooms with large areas of external glazing is one of the most challenging issues in cold climate zones. The rule of thumb, in this case is locating the heating unit under the window. Modern architectural trends lead to an increase in the number of facilities with panoramic glazing. The common practice is to locate trench units in close proximity to glass for such facilities. This analysis shows that even fan-assisted trench heating cannot always cope with cold air screening of large windows.