Made from vinyl that is stronger and more energy efficient than ordinary vinyl you can choose pella 250 series windows with confidence.
Pella vinyl windows u value.
Explore pella 350 series windows to find a low maintenance energy efficient window to complement your home.
Add transoms or adjacent windows for flexible combinations.
Pella 350 series windows are incredibly strong and durable and can withstand extreme conditions.
So in your example 1 where they show the window has a u value of 0 27 it s because the are using their lowest quality and least expensive frame and glazing.
Pella 350 series windows are available in standard and special sizes.
The u value of windows depends on 1 quality of frame 2 number of panes of glass 3 argon gas 4 low e coatings 5 air space between panes etc.
Find a vinyl window that complements your home.
Our unique vinyl formula is performance tested for excellent weathering color retention and durability.
View sizes and design data.
With new or replacement windows and patio doors that are energy star certified you can help lower your utility costs and enhance your home s comfort.
Energy star certified windows and doors help to conserve energy.
With features and options like hurricaneshield glass and reinforced frames these windows can stand up to severe storms.
Built to order in standard sizes or custom sizes in 1 8 increments.
We have several products that are identified as the energy star most efficient meaning they meet more stringent energy.
Pella 250 series windows offer more of everything you love about vinyl.