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  • ENERGY STAR Most Efficient 2025
    Windows, Doors & Skylights
    THE YEAR'S BEST OF ENERGY STAR FOR EFFICIENCY & INNOVATION

    Products that make the ENERGY STAR Most Efficient list for 2025 deliver cutting edge energy efficiency along with the latest in technological innovation. They represent the year’s very best for energy savings and environmental protection.
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Series Name:
400/500 Series Picture Window
Product Category Field details:
Window
Product Type Field details:
Picture Window
Frame Material:
Vinyl (or other plastic)
ME U-Factor Min Field details:
0.12
ME SHGC Min. Field details:
0.15
ME U-Factor Max Field details:
0.21
ME SHGC Max Field details:
0.30
ME Total ES Options Certified Field details:
75
ME Northern Zone Options Field details:
41
ME North-Central Zone Options Field details:
64
ME Southern Zone Options Field details:
57
ME South-Central Zone Options Field details:
46
Series Name:
Universal Series Outswing Casement Window
Product Category Field details:
Window
Product Type Field details:
Casement Windows
Frame Material:
Fiberglass
ME U-Factor Min Field details:
0.12
ME SHGC Min. Field details:
0.05
ME U-Factor Max Field details:
0.22
ME SHGC Max Field details:
0.35
ME Total ES Options Certified Field details:
279
ME Northern Zone Options Field details:
50
ME North-Central Zone Options Field details:
252
ME Southern Zone Options Field details:
240
ME South-Central Zone Options Field details:
213
Series Name:
Universal Series Outswing Awning Window
Product Category Field details:
Window
Product Type Field details:
Awning (Projected)
Frame Material:
Fiberglass
ME U-Factor Min Field details:
0.12
ME SHGC Min. Field details:
0.05
ME U-Factor Max Field details:
0.22
ME SHGC Max Field details:
0.36
ME Total ES Options Certified Field details:
289
ME Northern Zone Options Field details:
47
ME North-Central Zone Options Field details:
265
ME Southern Zone Options Field details:
254
ME South-Central Zone Options Field details:
230
Series Name:
Defender 88PH+ XI Dual Action
Product Category Field details:
Window
Product Type Field details:
Dual Action (Tilt Turn)
Frame Material:
Vinyl (or other plastic)
ME U-Factor Min Field details:
0.12
ME SHGC Min. Field details:
0.12
ME U-Factor Max Field details:
0.20
ME SHGC Max Field details:
0.36
ME Total ES Options Certified Field details:
5,760
ME Northern Zone Options Field details:
2,064
ME North-Central Zone Options Field details:
5,760
ME Southern Zone Options Field details:
4,204
ME South-Central Zone Options Field details:
4,204
Series Name:
Heritage Push Out Casement Picture
Product Category Field details:
Window
Product Type Field details:
Picture Window
Frame Material:
Wood
ME U-Factor Min Field details:
0.12
ME SHGC Min. Field details:
0.09
ME U-Factor Max Field details:
0.22
ME SHGC Max Field details:
0.45
ME Total ES Options Certified Field details:
542
ME Northern Zone Options Field details:
200
ME North-Central Zone Options Field details:
515
ME Southern Zone Options Field details:
414
ME South-Central Zone Options Field details:
402
Series Name:
Forgent DH Studio Fixed
Product Category Field details:
Window
Product Type Field details:
Picture Window
Frame Material:
Vinyl (or other plastic), Wood
ME U-Factor Min Field details:
0.12
ME SHGC Min. Field details:
0.09
ME U-Factor Max Field details:
0.22
ME SHGC Max Field details:
0.46
ME Total ES Options Certified Field details:
1,618
ME Northern Zone Options Field details:
540
ME North-Central Zone Options Field details:
1,442
ME Southern Zone Options Field details:
1,272
ME South-Central Zone Options Field details:
1,124
Series Name:
9660/9770 Polyvinyl Chloride (PVC) Fixed (Direct Set) Window
Product Category Field details:
Window
Product Type Field details:
Picture Window
Frame Material:
Vinyl (or other plastic)
ME U-Factor Min Field details:
0.12
ME SHGC Min. Field details:
0.08
ME U-Factor Max Field details:
0.22
ME SHGC Max Field details:
0.47
ME Total ES Options Certified Field details:
2,695
ME Northern Zone Options Field details:
818
ME North-Central Zone Options Field details:
1,978
ME Southern Zone Options Field details:
2,176
ME South-Central Zone Options Field details:
1,525
Series Name:
300 Fixed Window
Product Category Field details:
Window
Product Type Field details:
Picture Window
Frame Material:
Fiberglass
ME U-Factor Min Field details:
0.12
ME SHGC Min. Field details:
0.16
ME U-Factor Max Field details:
0.21
ME SHGC Max Field details:
0.51
ME Total ES Options Certified Field details:
52
ME Northern Zone Options Field details:
41
ME North-Central Zone Options Field details:
43
ME Southern Zone Options Field details:
14
ME South-Central Zone Options Field details:
12
Series Name:
Energeto Neo 76 Small Picture Window
Product Category Field details:
Window
Product Type Field details:
Picture Window
Frame Material:
Vinyl (or other plastic)
ME U-Factor Min Field details:
0.12
ME SHGC Min. Field details:
0.16
ME U-Factor Max Field details:
0.22
ME SHGC Max Field details:
0.52
ME Total ES Options Certified Field details:
717
ME Northern Zone Options Field details:
559
ME North-Central Zone Options Field details:
619
ME Southern Zone Options Field details:
299
ME South-Central Zone Options Field details:
283
Series Name:
VistaLuxe Casement Picture Direct Set
Product Category Field details:
Window
Product Type Field details:
Picture Window
Frame Material:
Wood
ME U-Factor Min Field details:
0.12
ME SHGC Min. Field details:
0.11
ME U-Factor Max Field details:
0.22
ME SHGC Max Field details:
0.53
ME Total ES Options Certified Field details:
990
ME Northern Zone Options Field details:
422
ME North-Central Zone Options Field details:
852
ME Southern Zone Options Field details:
680
ME South-Central Zone Options Field details:
646
Series Name:
3004 Picture Window
Product Category Field details:
Window
Product Type Field details:
Picture Window
Frame Material:
Vinyl (or other plastic)
ME U-Factor Min Field details:
0.13
ME SHGC Min. Field details:
0.06
ME U-Factor Max Field details:
0.22
ME SHGC Max Field details:
0.39
ME Total ES Options Certified Field details:
19,886
ME Northern Zone Options Field details:
9,443
ME North-Central Zone Options Field details:
15,970
ME Southern Zone Options Field details:
14,132
ME South-Central Zone Options Field details:
10,216
Series Name:
A780/A790/ S780 Picture
Product Category Field details:
Window
Product Type Field details:
Picture Window
Frame Material:
Vinyl (or other plastic)
ME U-Factor Min Field details:
0.13
ME SHGC Min. Field details:
0.07
ME U-Factor Max Field details:
0.22
ME SHGC Max Field details:
0.55
ME Total ES Options Certified Field details:
909
ME Northern Zone Options Field details:
479
ME North-Central Zone Options Field details:
698
ME Southern Zone Options Field details:
594
ME South-Central Zone Options Field details:
433
Series Name:
CPW Casement Picture Window
Product Category Field details:
Window
Product Type Field details:
Picture Window
Frame Material:
Vinyl (or other plastic)
ME U-Factor Min Field details:
0.13
ME SHGC Min. Field details:
0.16
ME U-Factor Max Field details:
0.22
ME SHGC Max Field details:
0.30
ME Total ES Options Certified Field details:
401
ME Northern Zone Options Field details:
203
ME North-Central Zone Options Field details:
384
ME Southern Zone Options Field details:
274
ME South-Central Zone Options Field details:
257
Series Name:
Energeto Neo-76 Picture Window
Product Category Field details:
Window
Product Type Field details:
Picture Window
Frame Material:
Vinyl (or other plastic)
ME U-Factor Min Field details:
0.13
ME SHGC Min. Field details:
0.15
ME U-Factor Max Field details:
0.22
ME SHGC Max Field details:
0.49
ME Total ES Options Certified Field details:
1,319
ME Northern Zone Options Field details:
946
ME North-Central Zone Options Field details:
1,151
ME Southern Zone Options Field details:
627
ME South-Central Zone Options Field details:
552
Series Name:
3300 Fixed
Product Category Field details:
Window
Product Type Field details:
Picture Window
Frame Material:
Vinyl (or other plastic)
ME U-Factor Min Field details:
0.13
ME SHGC Min. Field details:
0.15
ME U-Factor Max Field details:
0.20
ME SHGC Max Field details:
0.28
ME Total ES Options Certified Field details:
42
ME Northern Zone Options Field details:
25
ME North-Central Zone Options Field details:
42
ME Southern Zone Options Field details:
31
ME South-Central Zone Options Field details:
31
Series Name:
Lighthouse/Commander Casement Fixed
Product Category Field details:
Window
Product Type Field details:
Picture Window
Frame Material:
Vinyl (or other plastic)
ME U-Factor Min Field details:
0.13
ME SHGC Min. Field details:
0.12
ME U-Factor Max Field details:
0.21
ME SHGC Max Field details:
0.46
ME Total ES Options Certified Field details:
688
ME Northern Zone Options Field details:
590
ME North-Central Zone Options Field details:
646
ME Southern Zone Options Field details:
290
ME South-Central Zone Options Field details:
275
Series Name:
New Aspect/Endure Picture Window
Product Category Field details:
Window
Product Type Field details:
Picture Window
Frame Material:
Vinyl (or other plastic)
ME U-Factor Min Field details:
0.13
ME SHGC Min. Field details:
0.17
ME U-Factor Max Field details:
0.22
ME SHGC Max Field details:
0.29
ME Total ES Options Certified Field details:
177
ME Northern Zone Options Field details:
104
ME North-Central Zone Options Field details:
138
ME Southern Zone Options Field details:
119
ME South-Central Zone Options Field details:
80
Series Name:
Zenith Awning
Product Category Field details:
Window
Product Type Field details:
Awning (Projected)
Frame Material:
Fiberglass
ME U-Factor Min Field details:
0.13
ME SHGC Min. Field details:
0.10
ME U-Factor Max Field details:
0.22
ME SHGC Max Field details:
0.40
ME Total ES Options Certified Field details:
614
ME Northern Zone Options Field details:
343
ME North-Central Zone Options Field details:
591
ME Southern Zone Options Field details:
395
ME South-Central Zone Options Field details:
372
Series Name:
Zenith Casement
Product Category Field details:
Window
Product Type Field details:
Casement Windows
Frame Material:
Fiberglass
ME U-Factor Min Field details:
0.13
ME SHGC Min. Field details:
0.10
ME U-Factor Max Field details:
0.22
ME SHGC Max Field details:
0.40
ME Total ES Options Certified Field details:
614
ME Northern Zone Options Field details:
343
ME North-Central Zone Options Field details:
591
ME Southern Zone Options Field details:
395
ME South-Central Zone Options Field details:
372
Series Name:
8521T2.8531T2.8571T2 Casement Fixed
Product Category Field details:
Window
Product Type Field details:
Picture Window
Frame Material:
Vinyl (or other plastic)
ME U-Factor Min Field details:
0.13
ME SHGC Min. Field details:
0.11
ME U-Factor Max Field details:
0.22
ME SHGC Max Field details:
0.45
ME Total ES Options Certified Field details:
3,356
ME Northern Zone Options Field details:
1,058
ME North-Central Zone Options Field details:
1,095
ME Southern Zone Options Field details:
2,872
ME South-Central Zone Options Field details:
710