Efficiency & air quality
Energy efficient replacement windows & doors
3 ways windows impact energy efficiency
Air leaks
Over time, expansion and contraction can cause seals to fail. This leads to leaks that let outside air in and climate-controlled air out.
Thermal conduction
Both the material and glass panes used to build your windows can compromise your comfort by allowing heat and cold to pass through.
UV ray penetration
UV rays often bring unwanted heat into your home — known as solar heat gain. The right windows will invite daylight in while blocking solar heat.
The energy efficient difference
5k
Ultrex® fiberglass is 5,000x less conductive than aluminum
Materials like fiberglass help insulate your home, retaining more heat in the winter and helping you stay cooler in the summer.
70%
Low E3 glass improves energy efficiency by up to 70%
In summer months, the metallic coating on Low E3 glass reflects UV rays to keep solar heat out, so you can reduce reliance on A/C.
Understanding ENERGY STAR® certification
At Infinity from Marvin, we submit our windows and doors for independent testing with ENERGY STAR. Requirements for these certifications vary based on geography to ensure you're getting a window designed for your climate.
Will certified windows save me money?
ENERGY STAR* estimates replacement windows can save between $253 to $568 per year on energy costs depending on the type of windows you're replacing.
Do windows need to be certified to be energy efficient?
While certification can make it easy to identify energy-efficient options, ENERGY STAR guidelines are not reflective of all factors that can improve energy efficiency. Things like conductivity of the frame material or its ability to resist warping and leaks are often not accounted for.
Awesome windows! We’ve already seen a difference in energy savings, and we love the way they look."
Parker R.
Georgia Homeowner
3 ways windows impact air quality
Daily ventilation
Opening your windows for at least 15 minutes a day can flush out pollutants, keeping indoor air fresh. If your windows fail to stay open, this simple task becomes easily neglected.
Material off gassing
Certain materials like vinyl** break down over time and release volatile organic compounds — VOCs — into the air. This can have a negative impact on your indoor air quality.
Pollutant infiltration
When windows expand and contract, gaps form, allowing outside pollutants and debris to sneak in.
Energy Efficient Glass Options
Which glass is right for your climate?
The glass you choose can improve the energy efficiency and comfort of your home. Most replacement windows feature glass coated with a thin layer of low-emissivity (Low E) material. The different levels of coating help dial in the amount of heat that moves in or out of your home.
Low E1
An option for colder climates — especially those at elevations with direct sun exposure. A single layer of coating allows UV rays to warm your home while blocking heat loss.
Low E2
Low E2 features 2 layers of coating that reflect heat back to the source. This glass performs year round in moderate climates, retaining heat in the winter and keeping it out in summer.
Low E3
With 3 layers of coating, Low E3 keeps solar heat at bay while letting visible sunlight into your home. A popular option for climates with intense sun exposure.
Low E3/ERS
An additional layer of coating is added to the room side of the glass. This 4th layer reflects heat back into the room for maximum year-round energy efficiency.
Extraordinary comfort from Infinity
Low expansion rate
The Ultrex fiberglass material used in Infinity windows expands at nearly the same rate as glass panes. This, paired with a custom fit, results in a tight and true seal that resists leaks.
Responsible materials
Ultrex — the foundation of Infinity windows — is thermoset. This means it's permanently hardened to avoid any harmful off gassing that can occur when materials break down. Thermoplastic materials like vinyl deteriorate over time, emitting VOCs in the process.
Enduring performance
8x stronger than vinyl, Ultrex resists warping and cracking to provide smooth, lasting performance that ensures your windows and patio doors operate as designed for years to come.
Climate expertise
We match customers with independent Infinity partners based on their localized expertise. This means your consultant will be equipped to help you choose the options designed to stand up to your climate.
*ENERGY STAR at energystar.gov. Savings estimates are based on EnergyPlus 9.5 modeling for typical homes in 132 U.S. cities. 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. ** Int J Environ Res Public Health. 2021 Dec; 18(24): 13147. Published online 2021 Dec 13. doi: 10.3390/ijerph182413147