The German Sprinz company has come up with a nice modern solution if you want to heat up a room in a beautiful and simple way.

Supratherm is a free-standing glass radiator for which you can choose different themes for the panel, like the fireplace-inspired one shown above.

The radiator is available in many different sizes and can be placed on the floor or mounted on the wall (see examples below). No word on pricing.

(Likecool via Home Improvement Ideas)