| Parameter | Old Single-Pane | Silver 62 (U-0.62) | |-----------|----------------|---------------------| | U-factor | 1.20 | 0.62 | | Annual heating cost (gas) | $1,850 | $1,140 | | Annual cooling cost (electric) | $520 | $340 | | | $2,370 | $1,480 |
Many Silver Line windows with 62-inch profiles are ENERGY STAR certified, meaning they meet strict energy efficiency guidelines. This can result in lower utility bills.
| Parameter | Old Single-Pane | Silver 62 (U-0.62) | |-----------|----------------|---------------------| | U-factor | 1.20 | 0.62 | | Annual heating cost (gas) | $1,850 | $1,140 | | Annual cooling cost (electric) | $520 | $340 | | | $2,370 | $1,480 |
Many Silver Line windows with 62-inch profiles are ENERGY STAR certified, meaning they meet strict energy efficiency guidelines. This can result in lower utility bills.