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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:
200 Series/400 Series Complementary Clad Specialty Windows
Product Category Field details:
Window
Product Type Field details:
Picture Window
Frame Material:
Wood
ME U-Factor Min Field details:
0.15
ME SHGC Min. Field details:
0.14
ME U-Factor Max Field details:
0.22
ME SHGC Max Field details:
0.50
ME Total ES Options Certified Field details:
1,894
ME Northern Zone Options Field details:
808
ME North-Central Zone Options Field details:
1,368
ME Southern Zone Options Field details:
1,150
ME South-Central Zone Options Field details:
768
Series Name:
Ultra Casement Picture
Product Category Field details:
Window
Product Type Field details:
Picture Window
Frame Material:
Wood
ME U-Factor Min Field details:
0.15
ME SHGC Min. Field details:
0.10
ME U-Factor Max Field details:
0.22
ME SHGC Max Field details:
0.49
ME Total ES Options Certified Field details:
903
ME Northern Zone Options Field details:
364
ME North-Central Zone Options Field details:
868
ME Southern Zone Options Field details:
691
ME South-Central Zone Options Field details:
688
Series Name:
Elevate Direct Glaze
Product Category Field details:
Window
Product Type Field details:
Picture Window
Frame Material:
Wood
ME U-Factor Min Field details:
0.15
ME SHGC Min. Field details:
0.16
ME U-Factor Max Field details:
0.22
ME SHGC Max Field details:
0.32
ME Total ES Options Certified Field details:
1,172
ME Northern Zone Options Field details:
594
ME North-Central Zone Options Field details:
1,028
ME Southern Zone Options Field details:
666
ME South-Central Zone Options Field details:
522
Series Name:
1072 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:
0.15
ME SHGC Min. Field details:
0.15
ME U-Factor Max Field details:
0.22
ME SHGC Max Field details:
0.51
ME Total ES Options Certified Field details:
101
ME Northern Zone Options Field details:
53
ME North-Central Zone Options Field details:
62
ME Southern Zone Options Field details:
55
ME South-Central Zone Options Field details:
39
Series Name:
2600 Awning w/ 2601 Sash
Product Category Field details:
Window
Product Type Field details:
Awning (Projected)
Frame Material:
Vinyl (or other plastic)
ME U-Factor Min Field details:
0.15
ME SHGC Min. Field details:
0.11
ME U-Factor Max Field details:
0.22
ME SHGC Max Field details:
0.38
ME Total ES Options Certified Field details:
330
ME Northern Zone Options Field details:
172
ME North-Central Zone Options Field details:
310
ME Southern Zone Options Field details:
205
ME South-Central Zone Options Field details:
185
Series Name:
E-Series Specialty (Auxiliary) Window
Product Category Field details:
Window
Product Type Field details:
Picture Window
Frame Material:
Wood
ME U-Factor Min Field details:
0.15
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:
1,610
ME Northern Zone Options Field details:
384
ME North-Central Zone Options Field details:
592
ME Southern Zone Options Field details:
1,250
ME South-Central Zone Options Field details:
288
Series Name:
Select 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:
0.15
ME SHGC Min. Field details:
0.20
ME U-Factor Max Field details:
0.20
ME SHGC Max Field details:
0.49
ME Total ES Options Certified Field details:
24
ME Northern Zone Options Field details:
24
ME North-Central Zone Options Field details:
14
ME Southern Zone Options Field details:
6
ME South-Central Zone Options Field details:
6
Series Name:
Heritage Casement
Product Category Field details:
Window
Product Type Field details:
Casement Windows
Frame Material:
Wood
ME U-Factor Min Field details:
0.15
ME SHGC Min. Field details:
0.09
ME U-Factor Max Field details:
0.20
ME SHGC Max Field details:
0.42
ME Total ES Options Certified Field details:
510
ME Northern Zone Options Field details:
172
ME North-Central Zone Options Field details:
508
ME Southern Zone Options Field details:
406
ME South-Central Zone Options Field details:
406
Series Name:
325-325 CA PW (No Hinge)
Product Category Field details:
Window
Product Type Field details:
Picture Window
Frame Material:
Vinyl (or other plastic)
ME U-Factor Min Field details:
0.15
ME SHGC Min. Field details:
0.08
ME U-Factor Max Field details:
0.22
ME SHGC Max Field details:
0.49
ME Total ES Options Certified Field details:
3,345
ME Northern Zone Options Field details:
704
ME North-Central Zone Options Field details:
1,220
ME Southern Zone Options Field details:
2,881
ME South-Central Zone Options Field details:
808
Series Name:
IGLO ENERGY Classic Fixed Window
Product Category Field details:
Window
Product Type Field details:
Picture Window
Frame Material:
Vinyl (or other plastic)
ME U-Factor Min Field details:
0.15
ME SHGC Min. Field details:
0.04
ME U-Factor Max Field details:
0.22
ME SHGC Max Field details:
0.45
ME Total ES Options Certified Field details:
2,023
ME Northern Zone Options Field details:
1,607
ME North-Central Zone Options Field details:
1,822
ME Southern Zone Options Field details:
682
ME South-Central Zone Options Field details:
497
Series Name:
Energeto Neo-76 Tilt and Turn Window
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:
0.15
ME SHGC Min. Field details:
0.13
ME U-Factor Max Field details:
0.22
ME SHGC Max Field details:
0.42
ME Total ES Options Certified Field details:
804
ME Northern Zone Options Field details:
378
ME North-Central Zone Options Field details:
672
ME Southern Zone Options Field details:
578
ME South-Central Zone Options Field details:
453
Series Name:
8500 Hybrid Casement
Product Category Field details:
Window
Product Type Field details:
Casement Windows
Frame Material:
Aluminum
ME U-Factor Min Field details:
0.15
ME SHGC Min. Field details:
0.13
ME U-Factor Max Field details:
0.22
ME SHGC Max Field details:
0.45
ME Total ES Options Certified Field details:
15,075
ME Northern Zone Options Field details:
7,522
ME North-Central Zone Options Field details:
10,830
ME Southern Zone Options Field details:
10,460
ME South-Central Zone Options Field details:
6,351
Series Name:
EuroTek 70 Fixed Window
Product Category Field details:
Window
Product Type Field details:
Picture Window
Frame Material:
Vinyl (or other plastic)
ME U-Factor Min Field details:
0.15
ME SHGC Min. Field details:
0.15
ME U-Factor Max Field details:
0.22
ME SHGC Max Field details:
0.32
ME Total ES Options Certified Field details:
159
ME Northern Zone Options Field details:
48
ME North-Central Zone Options Field details:
102
ME Southern Zone Options Field details:
111
ME South-Central Zone Options Field details:
54
Series Name:
Select Wide 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:
0.15
ME SHGC Min. Field details:
0.20
ME U-Factor Max Field details:
0.20
ME SHGC Max Field details:
0.49
ME Total ES Options Certified Field details:
22
ME Northern Zone Options Field details:
22
ME North-Central Zone Options Field details:
13
ME Southern Zone Options Field details:
6
ME South-Central Zone Options Field details:
6
Series Name:
8621/8631/2610/2630 Transom
Product Category Field details:
Window
Product Type Field details:
Picture Window
Frame Material:
Vinyl (or other plastic)
ME U-Factor Min Field details:
0.15
ME SHGC Min. Field details:
0.12
ME U-Factor Max Field details:
0.22
ME SHGC Max Field details:
0.47
ME Total ES Options Certified Field details:
1,114
ME Northern Zone Options Field details:
315
ME North-Central Zone Options Field details:
295
ME Southern Zone Options Field details:
935
ME South-Central Zone Options Field details:
152
Series Name:
8660 Awning
Product Category Field details:
Window
Product Type Field details:
Awning (Projected)
Frame Material:
Vinyl (or other plastic)
ME U-Factor Min Field details:
0.15
ME SHGC Min. Field details:
0.14
ME U-Factor Max Field details:
0.22
ME SHGC Max Field details:
0.32
ME Total ES Options Certified Field details:
1,042
ME Northern Zone Options Field details:
432
ME North-Central Zone Options Field details:
904
ME Southern Zone Options Field details:
842
ME South-Central Zone Options Field details:
704
Series Name:
8660 Awning
Product Category Field details:
Window
Product Type Field details:
Awning (Projected)
Frame Material:
Vinyl (or other plastic)
ME U-Factor Min Field details:
0.15
ME SHGC Min. Field details:
0.14
ME U-Factor Max Field details:
0.22
ME SHGC Max Field details:
0.32
ME Total ES Options Certified Field details:
1,042
ME Northern Zone Options Field details:
432
ME North-Central Zone Options Field details:
904
ME Southern Zone Options Field details:
842
ME South-Central Zone Options Field details:
704
Series Name:
8650/3151 Casement
Product Category Field details:
Window
Product Type Field details:
Casement Windows
Frame Material:
Vinyl (or other plastic)
ME U-Factor Min Field details:
0.15
ME SHGC Min. Field details:
0.14
ME U-Factor Max Field details:
0.22
ME SHGC Max Field details:
0.32
ME Total ES Options Certified Field details:
1,126
ME Northern Zone Options Field details:
458
ME North-Central Zone Options Field details:
987
ME Southern Zone Options Field details:
913
ME South-Central Zone Options Field details:
774
Series Name:
8650/3151 Casement
Product Category Field details:
Window
Product Type Field details:
Casement Windows
Frame Material:
Vinyl (or other plastic)
ME U-Factor Min Field details:
0.15
ME SHGC Min. Field details:
0.14
ME U-Factor Max Field details:
0.22
ME SHGC Max Field details:
0.32
ME Total ES Options Certified Field details:
1,126
ME Northern Zone Options Field details:
458
ME North-Central Zone Options Field details:
987
ME Southern Zone Options Field details:
913
ME South-Central Zone Options Field details:
774
Series Name:
250 Series / Power Symphony / CWS Comfort Shield / Burris TectView 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:
0.15
ME SHGC Min. Field details:
0.18
ME U-Factor Max Field details:
0.22
ME SHGC Max Field details:
0.46
ME Total ES Options Certified Field details:
30
ME Northern Zone Options Field details:
10
ME North-Central Zone Options Field details:
10
ME Southern Zone Options Field details:
24
ME South-Central Zone Options Field details:
8