54% – 83% more energy efficient with triple-pane glass compared to single-pane windows.
Exclusive energy-saving system. Pella 350 Series vinyl windows feature an exclusive energy-saving system which makes them Pella's most energy-efficient products.11
(A) InsulShield® Advanced Low-E triple-pane glass with argon
- Protection from extreme temperatures.
- Blocks 86% of the sun's ultraviolet rays.
(B) Frames have up to 18 insulating air chambers – significantly more than ordinary vinyl – to keep your home warmer in the winter and cooler in the summer.
(C) Optional foam insulation increases energy performance.