The double pane Deluxe Enviro-Star 800 Series sliding window with heavy duty foam filled frame is a high-end replacement slider that combines beauty and durability. If you are considering replacing your sliding windows consider the total value of these windows. Let Wonder Windows show you the difference between our windows and any other manufacturer.
- 13% Better U-Value than Energy Star® minimum
- 600% Better Air Infiltration protection
- Wide selection of hardware options
- Superior craftsmanship
- Full integral interlock with double weather-stripping.
- Full 3¼" Depth Welded Mainframe
- Beveled colonial exterior features
- Available in standard and custom exterior colors
- Maintenance free, for years of long lasting performance.
- Heatseal® warm edge spacer system for excellent thermal efficiency and drastic reduction in the possibility of condensation on the inside of the window.
- Available in Replacement and New Construction applications.
| Energy Star | Comparison To | ||||||
| Glazing Option | U-Value | SHGC | VT | CR | Minimum* | Energy Star Minimum | |
| Dual Glazed | |||||||
| Clear Glass | 0.45 | 0.57 | 0.60 | 46 | 0.30 | Does not qualify | |
| With ESP | 0.28 | 0.28 | 0.52 | 63 | 0.30 | 7% Better | |
| Deluxe | 0.26 | 0.28 | 0.52 | 63 | 0.30 | 13% Better | |
| Triple Glazed | |||||||
| With ESP | 0.22 | 0.25 | 0.41 | 73 | 0.30 | 27% Better | |
| Deluxe | 0.20 | 0.25 | 0.41 | 73 | 0.30 | 33% Better | |
| Deluxe/krypton Gas | 0.16 | 0.25 | 0.41 | 75 | 0.30 | 47% Better | |
| Industry | Comparison To | ||||||
| Our Windows | Minimum | Industry Minimum | |||||
| AAMA Rating | R 50 | R 15 | |||||
| Air Infiltration cfm/ft2 | 0.05 | 0.3 | 600% | Better | |||
| Water Penetration mph | 62 | 33 | 88% | Better | |||
| Structural Integrity mph | 171 | 94 | 82% | Better |
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