Energy Savings

Energy Savings for Your Twin Cities Home

Our SolarZone™ insulating glass packages are designed for superior thermal performance, keeping window openings both beautiful and energy-efficient. The SolarZone™ glass package combines the Warm-Edge Spacer System with multi-layered, vacuum deposition Low-E glass and Argon gas. The advanced technology reduces the consumption of carbon fuels that pollute the environment and minimizes the ultraviolet energy that can lead to the fading of carpets, curtains, and furniture by over 75%.

Warm-Edge Spacer System


Your window spacer system separates glass layers and heightens the energy efficiency of the entire unit. The box-shaped spacer system increases heat loss and causes condensation to form around the glass edges.

Our Warm-Edge Spacer blocks the heat far more effectively and reduces condensation on the glass during the winter. Non-conducive edges eliminate any glass-to-metal contact and contribute to a reduction of edge-of-glass temperatures. The U-channel designs are far more effective than previous models.

Low-E Glass

We create SolarZone Low-E Glass by applying a microscopic, undetectable metallic coating to the second surface of an insulating glass unit. It blocks heat gain from the sun’s reflected rays in the summer, but allows warmth from shorter solar rays into the house during winter months.


The space between the glass lites is filled with Argon gas. This colorless, odorless, non-reactive gas provides low thermal conductivity and high density (Argon is 38% denser than air at 1.784 grams per liter at STP) making it the perfect insulating agent.

Window World Provides Energy-Saving Home Solutions

To find out more about the features and benefits of energy-efficient windows, visit our showroom in Bloomington, Illinois or contact our window experts today!