Saving Heat Investments
Radiator reflectors work on a very simple principle. Radiators radiate heat both into the room, and into the wall behind it. That heat can simply be lost to the outside, especially if walls are thin. Reflectors are installed behind the radiator and help prevent that heat from being lost by reflecting the heat back into the room.
You should buy radiator reflectors. It might cost approximately 2 € per reflector.
