We have the frost guard for a small bathroom procured because here we have very little space for a heater and a cost-saving option examined as a fan heater. This frost guard met exactly our ideas. He does exactly that what we expect from him. It keeps the temperature evenly, so that in the morning does not come in a totally chilled out bathroom and at the highest level it is even really warm in the bathroom (approx. 5m²), even for small "frostbite". Because of Dimplex FW 550 S AKO exactly meets our expectations and also still pretty (especially against Is fan heaters) low energy consumption, he preserves the boldness of us a perfect score.