Test Results:

The tests in the bi-climate room demonstrated that IQ Glass™ has excellent thermal characteristics. If the equivalent temperature on a height of 29.5" (75 cm) is considered representative of the comfort impression of a seated person, the following conclusions can be made:

• Unheated IQ Glass™ (air filled) has a U-value of 0.176 Btu/hr f t 2 F (1.0 Watt/m2K), which has a better result than a triple pane unit, and can be compared to a double pane unit filled with insulating gas
• IQ Glass™ has several positive consequences:

1. A small vertical temperature gradient: homogeneous air temperature spreading in vertical direction
2. Glass surface temperatures from 78.8 F to 87.8 F (26 C to 31 C), completely eliminating the 'cold effect' of the window
3. The possibility to adjust a lower air temperature in order to obtain the same equivalent temperature
4. Heat losses towards the outside are very small: the outside of a heating window is 2.1 F (1.2 C) warmer than the outside of an identical, but non-heating window, for an outside temperature of 10.4 F (-12 C)
5. The temperature gradient of the glass is significantly smaller with IQ Glass™ than with traditional heating systems.
6. IQ Glass™ window forms the best 'cold shield' - The consequence is a more constant air temperature in the room which increases the comfort sensation
7. Due to the radiant heat effects of IQ Glass™, a lower room temperature can be sufficient to reach the same level of comfort feeling
8. During a normal heating season, IQ Glass™ can produce energy savings of 25 %, compared to a convection heating system.