How Windows Affect Your HVAC System

Did you know windows are the culprit of 25 to 30 percent of heat gain/loss in most homes? They can play a major role in your heating and cooling energy usage year round. If your windows are losing heat during the winter months, it can make it more difficult for your HVAC system to keep you cozy. MTB has broken down everything you need to know about how your windows can affect heat in your home.

How Window Placement Can Affect Your Energy Efficiency

Window placement is important for more than just pretty views. Their placement can make a big difference in your home’s energy efficiency. Windows perform best when they have an overhang, and are on the north or south side of your home.

Every year, around $35 billion is gobbled up in energy costs from energy-inefficient windows, according the U.S. Department of Energy.

What are the most energy-efficient windows?

If you’re thinking about replacing your windows with new ones, these are the windows that offer maximum energy efficiency, in order of effectiveness, as ranked by Pennsylvania State University.

  • Double pane, clear glass, low SHGC (solar heat gain coefficient), low -e solar control coating/film, wood or vinyl frame

  • Double pane, clear glass, wood or vinyl frame

  • Single pane, tinted, aluminum frame

  • Single pane, clear glass, aluminum frame

Don’t worry, you don’t necessarily need to replace your windows. You can improve your home’s energy efficiency by:

  • Checking for air leaks, then caulking and weather stripping around your windows

  • Adding window treatments if you don’t have them already

  • Installing storm windows and panels

  • Installing low -e solar control film to reflect heat, block UV rays and help save energy

  • Installing shading options, such as awnings and exterior blinds

What our clients have to say

"I was impressed by the professionalism of the installation team. Keep up the good work."

David B., Matthews, N.C.

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