Cold glass surface as heating source
IQ Glass transforms the cold surface of glass into a source of heating. Connected to the electrical wiring concealed within the walls of the room and frame of the window, IQ Glass heats spaces with radiant heat - a healthy, sumptuous heat comparable to that of the sun, minus UV rays. In single family residences, IQ Glass windows may be used as the sole heating source for an entire home.
Source: iqglass.comAdded: 7 June 2006