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Selecting Replacement Windows: What Makes a Window Energy Efficient

Selecting Replacement Windows: What Makes a Window Energy Efficient

When you’re planning your project for replacement windows in Mankato, energy efficiency should be number one on your priority list. That’s because inefficient windows can be responsible for the biggest heating and cooling loss in your house.

They can leak as much as 30% of your heating and cooling, according to the U.S. Department of Energy. So, it’s essential that your replacement windows are the smartest option for the climate in Mankato.

In choosing your new windows, here are a few aspects to think over.

Window Panes: One, Two or Three?

Window panes are one of the most critical parts of an energy-efficient window. We suggest choosing at least double-pane windows, due to the fact single-pane windows are very inefficient. They’re also prone to losing air and affecting your residence’s comfort.

If it will fit your budget, upgrading to ENERGY STAR® windows will help reduce heating and cooling costs and save you more money over the years. That’s since they work hard to keep your home’s temp in balance, regardless of the climate outside.

On average, ENERGY STAR says normal houses that get these windows can save*:

  • $101–$583 yearly when replacing single-pane windows.
  • $27–$197 annually when replacing double-pane, clear glass windows.

Over the life cycle of your windows, those savings can really collect. And you can also feel good realizing you’re helping reduce greenhouse gas emissions, which helps shield the environment.

Energy efficiency matters to us at Pella. That’s why we’ve associated ourselves with ENERGY STAR since 1999 and offer windows that meet or exceed certification in all 50 states. Windows from our Architect Series®, Lifestyle Series, 350 Series and 250 Series are included on the ENERGY STAR Most Efficient 2020 list. This means they’re among the most efficient that you can buy.

Individualize Your Windows with Glass Options

Including special coatings and gas between window panes can keep your house comfier while keeping out more ultraviolet rays. Wherever you live, Pella offers an InsulShield® glass solution that will work with your specific climate.

Selecting a Fitting Window Frame Material

When designing your new windows, you’ll have a few materials to select from. Here’s how they stack up for energy efficiency:

  • Top insulation: Wood windows are rated very good for insulation, because wood intrinsically transfers less heat and cold.
  • High durability: Our exclusive fiberglass windows insulate much like wood, along with the fact they won’t melt or break down when faced with temperature shifts. Engineered for lasting durability, Pella’s proprietary fiberglass is the strongest material available for windows.**
  • Budget-friendly: Our vinyl windows are designed to match your budget while keeping your home energy-efficient. Including several chambers, these frames help reduce heat loss and enhance efficiency.

Quality Window Installation is Essential

Good installation is just as critical as the glass and window frame material you pick for your new windows.

That’s why you’ll want to select with a company like Pella of Mankato, who specializes in this service. We use exclusive installation methods to assure your new windows are a fantastic fit. This stops openings and cracks that can let in moisture and air that impact your comfort.

You can also trust our team to be considerate of your house during your no-mess, no-guess installation day. They’ll clean up after they’re done and will even take care of your old windows.

Ready to design energy-efficient windows for your house? Your local Pella of Mankato experts are here to assist you. Contact us at 507-625-6933 right away to get started!


*Ranges are based on the average savings among homes in modeled cities. Actual savings will vary based on local climate conditions, utility rates and individual home characteristics.

**Pella's proprietary fiberglass material has displayed superior strength over wood, vinyl, aluminum, wood/plastic composites and other fiberglass materials used by leading national brands in tensile and 3-point bend tests performed in accordance with ASTM D638 and D790 testing standards.

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