Triple pane glass in the Okna 800 Series Deluxe is all about energy savings. This is the highest rated option of all Okna Picture windows. Superior craftsmanship, beauty, durability and maintenance free construction will excite you on installation and for decades to come. Investing in windows can be confusing ...let the experts at Wonder Windows show you the difference.
- 40% Better than Energy Star® minimum
- 3000% Better Air Infiltration protection
- Wide selection of glass, grids and shapes and sizes
- Superior craftsmanship
- 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
- Lower 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 | |
| Triple Glazed | |||||||
| Deluxe | 0.18 | 0.27 | 0.44 | 75 | 0.30 | 40% Better | |
| Industry | Comparison To | ||||||
| Our Windows | Minimum | Industry Minimum | |||||
| AAMA Rating | R 75 | R 15 | |||||
| Air Infiltration cfm/ft2 | 0.01 | 0.3 | 3000% | Better | |||
| Water Penetration mph | 66 | 33 | 100% | Better | |||
| Structural Integrity mph | 210 | 94 | 123% | Better | |||
