What is an Energy Efficient Window? A Guide for Homeowners

As you’re on the journey of buying replacement windows, you’ll quickly realize that energy efficient windows can lower heating and cooling costs. This is more important than ever as energy bills are becoming very costly. But what is an energy efficient window, and how can it help regulate your heating bills this winter?

Understanding Dual and Triple Pane Glass

Long ago, windows had a single layer of glass to protect you from the elements. Unfortunately, this isn’t the best option for energy savings. When it comes to energy efficient windows, these products are crafted with dual pane or triple pane glass.

Dual Pane

Dual pane refers to the number of panels of glass in a window. In this case, there are two. In the past, windows only had a single pane of glass which was ultimately very inefficient. Today, windows have at least two panes of glass that have airspace in between.

Triple Pane

Triple pane has a third pane of glass in place of two. This provides a second chamber for energy efficient gases and another barrier against energy loss.

Energy Efficient Gases

Did you know that there are gases between the panes of the most efficient windows? These are used to provide insulation while preventing heat loss in the winter. The two gases you’ll find in your windows include argon gas and krypton gas.

Argon Gas

Most homeowners want energy efficient windows. Argon gas is one of the pieces of the puzzle for an energy efficient window. Argon is a colorless and odorless gas. Its purpose is to enhance the thermal efficiency of the window. It also helps to keep the window surface at a similar temperature to the interior of the home.

This gas is inserted inside the air chambers during manufacturing.

Krypton Gas

Krypton is also a colorless and odorless gas that’s denser than air. It’s also denser than argon which makes it one of the most efficient gases on the market. Furthermore, Krypton is most commonly found in triple pane windows.

Improving Home Performance with Low-E

Low emissivity is a clear glazing that’s thinner than a human hair. Its purpose is to reflect infrared heat from entering through the glass. It also prevents your furniture and flooring from fading from the sun. During the winter, Low-e allows the sun to naturally heat your home. In the summertime, it reflects heat away from your home to keep it cool.

Energy Star Certification

Energy Star is an important certification. This is a government-backed program that shows the most energy efficient appliances and products including replacement windows. Make sure that your windows are Energy Star certified to maximize your energy savings.

Learn More About Energy Efficient Windows

Tennessee Thermal is dedicated to educating local homeowners on window installation and products. We’re happy to explain how energy efficient windows work at your free in-home consultation. Contact us to schedule your appointment.