Energy Efficiency

#1 for energy efficiency among top national brands.1

Designer Series® windows and patio doors are the only Pella products available with triple-pane glass. The combination of Low-E insulating glass with argon plus the exclusive glass panel meet ENERGY STAR® guidelines and helps save nearly one-third on your heating and cooling bills.2

1Pella Designer Series windows and patio doors with triple-pane glass have superior NFRC U-values and SHGC ratings.

2Computer simulation average compared to single-pane wood windows. Actual results may vary.

Some Pella products may not meet ENERGY STAR guidelines in Canada. For more information, contact your local Pella sales representative or go to energystar.gc.ca.