Energy Efficient Replacement Windows | Energy Star Certified - Infinity from Marvin

Thinking Green

Energy Efficiency

High Performance Glass Options


We know how important energy efficiency is, and our standard LoĒ²-272 glazings are a simple means of maximizing your home's thermal efficiency. LoĒ²-272 reflects heat back to its source so summer heat is reflected outdoors and winter indoor heating is retained. At the same time, 84% of the sun's UV rays are screened to reduce fading and damage to upholstery and carpets. Argon gas and a warm edge spacer are also standard features. It all adds up to enhanced performance and long-term savings for you.


Our optional LoĒ³-366 glass provides increased performance for heat gain and high sun exposure locations. This top-performance glass is formulated to reject solar heat while letting light in. With
LoĒ³-366 glass, light and visibility are maximized, 95% of the sun's damaging UV rays are blocked, and most importantly, you and your home stay cool and comfortable.

A "Star" Performer

Owning and maintaining a home is the single biggest investment and expense for most individuals. Improving energy efficiency and reducing energy bills is one of the main reasons homeowners replace their old, inefficient windows. Choosing Infinity for your window replacement project is an investment in the long-term energy efficiency and comfort of your home.


Infinity® from Marvin exceeds the performance requirements for energy reduction set down by the U.S. Department of Energy and the U.S. Environmental Protection Agency in their Energy Star ratings. And, Infinity qualifies for the Energy Star rating in all U.S. climate regions.
Energy Star Replacement Windows

NFRC Rating

The not-for-profit National Fenestration Rating Council sets standards for the window and door industry. Infinity earned one of the highest possible ratings for energy performance. The ratings measure light transmission and heat loss or gain under varying conditions.

Tax Credit

Because Infinity products are highly energy efficient, they qualify for up to $500 in tax credits under the American Taxpayer Relief Act of 2012 reinstating the energy efficiency tax credits for windows and doors, which had previously expired at the end of 2011. To learn more about qualifying for this tax credit visit our tax credit page.

Installed for You

Infinity Reviews

Read what past customers had to say about their Infinity experience.

Environmental Impact


Learn about our commitment to sustainable manufacturing and product design.

Photo Gallery

Photo Gallery

See the beauty of Infinity Replacement Windows by Marvin.



Hear what our clients have to say about their experience with Infinity Replacement Windows.

Media Room

Media Room

Get the latest in Infinity Replacement Windows, and other Marvin related news.

© 2014 Marvin Windows and Doors