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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:
Universal Series Fixed Window Interior Glazed
Product Category Field details:
Window
Product Type Field details:
Picture Window
Frame Material:
Fiberglass
ME U-Factor Min Field details:
0.08
ME SHGC Min. Field details:
0.06
ME U-Factor Max Field details:
0.21
ME SHGC Max Field details:
0.53
ME Total ES Options Certified Field details:
192
ME Northern Zone Options Field details:
108
ME North-Central Zone Options Field details:
174
ME Southern Zone Options Field details:
129
ME South-Central Zone Options Field details:
122
Series Name:
Zenith Low Fixed
Product Category Field details:
Window
Product Type Field details:
Picture Window
Frame Material:
Fiberglass
ME U-Factor Min Field details:
0.10
ME SHGC Min. Field details:
0.12
ME U-Factor Max Field details:
0.21
ME SHGC Max Field details:
0.53
ME Total ES Options Certified Field details:
671
ME Northern Zone Options Field details:
537
ME North-Central Zone Options Field details:
539
ME Southern Zone Options Field details:
258
ME South-Central Zone Options Field details:
256
Series Name:
Forgent Casement Direct Set
Product Category Field details:
Window
Product Type Field details:
Picture Window
Frame Material:
Vinyl (or other plastic), Wood
ME U-Factor Min Field details:
0.10
ME SHGC Min. Field details:
0.11
ME U-Factor Max Field details:
0.22
ME SHGC Max Field details:
0.48
ME Total ES Options Certified Field details:
1,542
ME Northern Zone Options Field details:
624
ME North-Central Zone Options Field details:
1,248
ME Southern Zone Options Field details:
1,062
ME South-Central Zone Options Field details:
960
Series Name:
Forgent DH Direct Set
Product Category Field details:
Window
Product Type Field details:
Picture Window
Frame Material:
Vinyl (or other plastic), Wood
ME U-Factor Min Field details:
0.10
ME SHGC Min. Field details:
0.11
ME U-Factor Max Field details:
0.22
ME SHGC Max Field details:
0.47
ME Total ES Options Certified Field details:
828
ME Northern Zone Options Field details:
316
ME North-Central Zone Options Field details:
656
ME Southern Zone Options Field details:
588
ME South-Central Zone Options Field details:
494
Series Name:
Tyrol Fixed Picture
Product Category Field details:
Window
Product Type Field details:
Picture Window
Frame Material:
Vinyl (or other plastic)
ME U-Factor Min Field details:
0.10
ME SHGC Min. Field details:
0.17
ME U-Factor Max Field details:
0.20
ME SHGC Max Field details:
0.48
ME Total ES Options Certified Field details:
78
ME Northern Zone Options Field details:
55
ME North-Central Zone Options Field details:
60
ME Southern Zone Options Field details:
30
ME South-Central Zone Options Field details:
30
Series Name:
Forgent Casement Picture
Product Category Field details:
Window
Product Type Field details:
Picture Window
Frame Material:
Vinyl (or other plastic), Wood
ME U-Factor Min Field details:
0.11
ME SHGC Min. Field details:
0.10
ME U-Factor Max Field details:
0.22
ME SHGC Max Field details:
0.44
ME Total ES Options Certified Field details:
850
ME Northern Zone Options Field details:
288
ME North-Central Zone Options Field details:
696
ME Southern Zone Options Field details:
682
ME South-Central Zone Options Field details:
552
Series Name:
VistaLuxe Direct Set
Product Category Field details:
Window
Product Type Field details:
Picture Window
Frame Material:
Wood
ME U-Factor Min Field details:
0.11
ME SHGC Min. Field details:
0.11
ME U-Factor Max Field details:
0.22
ME SHGC Max Field details:
0.55
ME Total ES Options Certified Field details:
1,012
ME Northern Zone Options Field details:
446
ME North-Central Zone Options Field details:
822
ME Southern Zone Options Field details:
666
ME South-Central Zone Options Field details:
610
Series Name:
Tyrol Tilt Turn
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:
0.15
ME U-Factor Max Field details:
0.20
ME SHGC Max Field details:
0.41
ME Total ES Options Certified Field details:
113
ME Northern Zone Options Field details:
70
ME North-Central Zone Options Field details:
112
ME Southern Zone Options Field details:
57
ME South-Central Zone Options Field details:
57
Series Name:
Defender 88PH+ XI Fixed
Product Category Field details:
Window
Product Type Field details:
Picture Window
Frame Material:
Vinyl (or other plastic)
ME U-Factor Min Field details:
0.12
ME SHGC Min. Field details:
0.14
ME U-Factor Max Field details:
0.20
ME SHGC Max Field details:
0.42
ME Total ES Options Certified Field details:
5,760
ME Northern Zone Options Field details:
2,896
ME North-Central Zone Options Field details:
5,730
ME Southern Zone Options Field details:
3,934
ME South-Central Zone Options Field details:
3,934
Series Name:
Ultra Direct Set Family
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:
0.54
ME Total ES Options Certified Field details:
976
ME Northern Zone Options Field details:
421
ME North-Central Zone Options Field details:
837
ME Southern Zone Options Field details:
667
ME South-Central Zone Options Field details:
640
Series Name:
A280/A580/S280/S580/A390 Fixed
Product Category Field details:
Window
Product Type Field details:
Picture Window
Frame Material:
Vinyl (or other plastic)
ME U-Factor Min Field details:
0.12
ME SHGC Min. Field details:
0.07
ME U-Factor Max Field details:
0.22
ME SHGC Max Field details:
0.36
ME Total ES Options Certified Field details:
2,610
ME Northern Zone Options Field details:
1,571
ME North-Central Zone Options Field details:
2,202
ME Southern Zone Options Field details:
1,492
ME South-Central Zone Options Field details:
1,084
Series Name:
8361 Fixed Casement
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:
0.22
ME SHGC Max Field details:
0.49
ME Total ES Options Certified Field details:
153
ME Northern Zone Options Field details:
108
ME North-Central Zone Options Field details:
124
ME Southern Zone Options Field details:
60
ME South-Central Zone Options Field details:
41
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:
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:
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:
0.41
ME Total ES Options Certified Field details:
1,588
ME Northern Zone Options Field details:
528
ME North-Central Zone Options Field details:
1,416
ME Southern Zone Options Field details:
1,252
ME South-Central Zone Options Field details:
1,104
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:
665
ME Northern Zone Options Field details:
507
ME North-Central Zone Options Field details:
572
ME Southern Zone Options Field details:
297
ME South-Central Zone Options Field details:
281
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