The 800 Series Enviro-Star double pane with ESP is a great choice. ESP = the Energy Saver Package with foam filled frame. Your family room, great room or dining room will be a show place for light and the open feeling of large picture windows. Let us show you the difference...quality and low pricing from Wonder Windows Buffalo.
- 10% 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|
|With ESP||0.27||0.31||0.56||63||0.30||10% Better|
|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|