ENERGY STAR Most Efficient 2023 — Horizontal Slider Windows
The ENERGY STAR Most Efficient 2023 designation recognizes the most efficient products among those that qualify for the ENERGY STAR program. These vertical slider windows represent the leading edge in energy efficient products this year. Access the full ENERGY STAR Most Efficient certified products list in Excel (EXCEL, 64 KB). Illustrations of all ENERGY STAR window types. Most Efficient recognizes a subset (PDF, 701KB).
Notes on Abbreviations:
|
CPD |
National Fenestration Rating Council |
|
Certified Products Directory (link is external) |
SHGC |
Solar Heat Gain Coefficient |
PG |
Performance Grade |
|
Product Line |
CPD Number |
U-Factor |
SHGC |
Frame Type |
PG |
Climate Zones |
Energy Core |
AWN-M-14 |
0.15–0.20 |
0.17–0.26 |
Vinyl |
40 |
N, NC, SC, S |
Andersen Corporation
|
Product Line |
CPD Number |
U-Factor |
SHGC |
Frame Type |
PG |
Climate Zones |
Renewal By Andersen® Gliding Window |
AND-N-146 |
0.19–0.20 |
0.18–0.28 |
Other |
40 |
N, NC, SC, S |
Associated Materials, Inc.
|
Product Line |
CPD Number |
U-Factor |
SHGC |
Frame Type |
PG |
Climate Zones |
Mezzo - 3002/3003/3009 |
ASO-A-90 |
0.17–0.20 |
0.07–0.31 |
Vinyl |
20 |
N, NC, SC, S |
Preservation - 9E02/9002/9E03/9003/9E09/9009,8E02-8002/8E03/8003/8E09/8009 Series |
ASO-A-94 |
0.17–0.20 |
0.16–0.29 |
Vinyl |
15 |
N, NC, SC, S |
80 Series A282-3 |
ASO-A-104 |
0.16–0.20 |
0.07–0.32 |
Vinyl |
20 |
N, NC, SC, S |
Atrium Windows and Doors
|
Product Line |
CPD Number |
U-Factor |
SHGC |
Frame Type |
PG |
Climate Zones |
8900/90/8000/1800/3900 Double Slider |
ADW-M-389 |
0.17–0.20 |
0.14–0.23 |
Vinyl |
35 |
N, NC, SC, S |
Champion Window
|
Product Line |
CPD Number |
U-Factor |
SHGC |
Frame Type |
PG |
Climate Zones |
Comfort 365 Extreme Energy |
CHW-A-8 |
0.20 |
0.25 |
Vinyl |
25 |
N, NC, SC, S |
Comfort Window Manufacturing
|
Product Line |
CPD Number |
U-Factor |
SHGC |
Frame Type |
PG |
Climate Zones |
Horizontal Slider |
GAM-M-12 |
0.18–0.20 |
0.23–0.25 |
Vinyl |
20 |
N, NC, SC, S |
EnergyWall Windows & Doors
|
Product Line |
CPD Number |
U-Factor |
SHGC |
Frame Type |
PG |
Climate Zones |
7030 Slider |
EWW-M-4 |
0.17–0.20 |
0.14–0.33 |
Vinyl |
15 |
N, NC, SC, S |
8530 Slider |
EWW-M-5 |
0.16–0.20 |
0.13–0.30 |
Vinyl |
45 |
N, NC, SC, S |
7420 Slider |
EWW-M-15 |
0.16–0.20 |
0.14–0.34 |
Vinyl |
35 |
N, NC, SC, S |
Gilkey Window Company
|
Product Line |
CPD Number |
U-Factor |
SHGC |
Frame Type |
PG |
Climate Zones |
Boreal 3310 Lift Out Slider |
GWD-M- 39 |
0.17–0.20 |
0.11–0.26 |
Vinyl |
50 |
N, NC, SC, S |
Great Lakes Window
|
Product Line |
CPD Number |
U-Factor |
SHGC |
Frame Type |
PG |
Climate Zones |
HarborLight |
GLW-M-124 |
0.18–0.20 |
0.17–0.26 |
Vinyl |
50 |
N, NC, SC, S |
ComfortSmart |
GLW-M-127 |
0.16–0.20 |
0.16–0.21 |
Vinyl |
55 |
N, NC, SC, S |
ecoSmart |
GLW-M-130 |
0.15–0.20 |
0.15–0.25 |
Vinyl |
45 |
N, NC, SC, S |
Ideal Window Manufacturing, Inc.
|
Product Line |
CPD Number |
U-Factor |
SHGC |
Frame Type |
PG |
Climate Zones |
UltraTite |
IAP-M-38 |
0.20 |
0.21–0.24 |
Vinyl |
25 |
N, NC, SC, S |
PerfectFit / Majestic / Lifescapes |
IAP-M-24 |
0.18–0.20 |
0.22–0.24 |
Vinyl |
25 |
N, NC, SC, S |
PerfectFit / Majestic / Lifescapes |
IAP-M-27 |
0.20 |
0.24 |
Vinyl |
30 |
N, NC, SC, S |
Interstate Window & Door Co.
|
Product Line |
CPD Number |
U-Factor |
SHGC |
Frame Type |
PG |
Climate Zones |
9800 HS (CompositWood®) |
IBM-K-45 |
0.15–0.20 |
0.17–0.23 |
Composite |
40 |
N, NC, SC, S |
9400 HS (Architectural Series) |
IBM-K-47 |
0.15–0.20 |
0.20–0.24 |
Composite |
25 |
N, NC, SC, S |
8800/6800/440 HS |
IBM-K-52 |
0.17 |
0.21–0.23 |
Vinyl |
15 |
N, NC, SC, S |
|
Product Line |
CPD Number |
U-Factor |
SHGC |
Frame Type |
PG |
Climate Zones |
Premium Vinyl (V-4500) Horizontal Slider |
JEL-A-544 |
0.20–0.20 |
0.15–0.19 |
Vinyl |
35 |
NC, SC, S |
Premium Vinyl (V-4500) Double Slider |
JEL-A-773 |
0.19–0.20 |
0.14–0.25 |
Vinyl |
35 |
N, NC, SC, S |
Joyce Manufacturing Co.
|
Product Line |
CPD Number |
U-Factor |
SHGC |
Frame Type |
PG |
Climate Zones |
Insulator INSL |
JMC-K-6 |
0.16–0.20 |
0.14–0.24 |
Vinyl |
35 |
N, NC, SC, S |
Kohltech International, Ltd.
|
Product Line |
CPD Number |
U-Factor |
SHGC |
Vinyl |
PG |
Climate Zones |
Supreme |
KOI-A-51 |
0.20–0.20 |
0.24–0.24 |
Vinyl |
40 |
N, NC, SC, S |
Supreme Single Glider |
KOI-A-86 |
0.18–0.20 |
0.21–0.62 |
Vinyl |
55 |
N, NC, SC, S |
Marvin Windows and Doors
|
Product Line |
CPD Number |
U-Factor |
SHGC |
Frame Type |
PG |
Climate Zones |
Ultimate Glider |
MAR-N-387 |
0.18–0.20 |
0.16–0.42 |
Wood and Clad Wood |
35 |
N, NC, SC, S |
Mercury-Excelum, Inc.
|
Product Line |
CPD Number |
U-Factor |
SHGC |
Frame Type |
PG |
Climate Zones |
Harmony Series |
MEX-M-18 |
0.20 |
0.26 |
Vinyl |
40 |
N, NC |
MI Windows and Doors, LLC.
|
Product Line |
CPD Number |
U-Factor |
SHGC |
Frame Type |
PG |
Climate Zones |
1685 PVC Horizontal Slider (XX) Window |
MEI-A-215 |
0.17–0.20 |
0.08–0.44 |
Vinyl |
15 |
N, NC, SC, S |
Milgard Manufacturing, Inc.
|
Product Line |
CPD Number |
U-Factor |
SHGC |
Frame Type |
PG |
Climate Zones |
8220.8230.8370 Single Hung |
MIL-A-225 |
0.18–0.20 |
0.19–0.43 |
Vinyl |
25 |
N, NC, SC, S |
8120.8130.8170 Horizontal Slider |
MIL-A-224 |
0.18–0.20 |
0.19–0.43 |
Vinyl |
40 |
N, NC, SC, S |
8520.8521.8530.8531.8570.8571 Casement |
MIL-A-227 |
0.17–0.20 |
0.17–0.39 |
Vinyl |
60 |
N, NC, SC, S |
8420.8421.8430.8431.8470.8471 Awning |
MIL-A-226 |
0.17–0.20 |
0.17–0.39 |
Vinyl |
40 |
N, NC, SC, S |
8320.8330 Picture Window |
MIL-A-229 |
0.16–0.20 |
0.20–0.45 |
Vinyl |
40 |
N, NC, SC, S |
8360/8370 Picture Window |
MIL-A-236 |
0.16–0.20 |
0.20–0.45 |
Vinyl |
50 |
N, NC, SC, S |
National Vinyl LLC
|
Product Line |
CPD Number |
U-Factor |
SHGC |
Frame Type |
PG |
Climate Zones |
Northwind III / Trustgard / Destiny / Northwind Builder Remodeler |
NVP-K-15 |
0.16–0.20 |
0.21–0.24 |
Vinyl |
20 |
N, NC, SC, S |
NT Window, Inc.
|
Product Line |
CPD Number |
U-Factor |
SHGC |
Frame Type |
PG |
Climate Zones |
E,N,W,X,H,P140 |
NTW-A-14 |
0.18 |
0.18 |
Vinyl |
30 |
NC, SC, S |
Y140 |
NTW-A-22 |
0.20 |
0.16–0.18 |
Vinyl |
35 |
NC, SC, S |
OKNA Windows & Doors
|
Product Line |
CPD Number |
U-Factor |
SHGC |
Frame Type |
PG |
Climate Zones |
Insul Tec – 520 / 5520 Series |
OKW-K-21 |
0.16–0.20 |
0.23–0.26 |
Vinyl |
40 |
N, NC |
Precision Weld – 420 Series |
OKW-K-24 |
0.17 |
0.25 |
Vinyl |
35 |
N, NC, SC, S |
Enviro Star - 820 Series |
OKW-K-30 |
0.20 |
0.25 |
Vinyl |
50 |
N, NC, SC, S |
Starmark - 920 Series |
OKW-K-33 |
0.15–0.20 |
0.22–0.25 |
Composite |
40 |
N, NC, SC, S |
Eco-Pro - 620/6620 |
OKW-K-39 |
0.17–0.20 |
0.22–0.25 |
Vinyl |
40 |
N, NC, SC, S |
HIMARK - 1020 |
OKW-K-40 |
0.16–0.18 |
0.20–0.23 |
Vinyl |
60 |
N, NC, SC, S |
Starmark - EVO - 7520 |
OKW-K-46 |
0.15–0.18 |
0.15–0.25 |
Composite |
60 |
N, NC, SC, S |
Pella Corporation
|
Product Line |
CPD Number |
U-Factor |
SHGC |
Frame Type |
PG |
Climate Zones |
350 Series Sliding Window (Nail Fin) |
PEL-N-192 |
0.18–0.19 |
0.22–0.24 |
Vinyl |
40 |
N, NC, SC, S |
350 Series Sliding Window (Pocket Frame) |
PEL-N-201 |
0.18–0.20 |
0.22–0.24 |
Vinyl |
40 |
N, NC, SC, S |
Pella 250 Series Sliding Window with Advanced Low-E |
PEL-N-210 |
0.20 |
0.22–0.25 |
Vinyl |
25 |
N, NC, SC, S |
Ply Gem Windows
|
Product Line |
CPD Number |
U-Factor |
SHGC |
Frame Type |
PG |
Climate Zones |
1500 Vinyl Collection Beveled |
PWG-M-169 |
0.19–0.20 |
0.12–0.25 |
Vinyl |
50 |
N, NC, SC, S |
1500 Vinyl Collection Brickmould |
PWG-M-171 |
0.19–0.20 |
0.12–0.25 |
Vinyl |
50 |
N, NC, SC, S |
Contractor 2000 |
PWG-M-157 |
0.17–0.20 |
0.17–0.26 |
Vinyl |
50 |
N, NC, SC, S |
Contractor 2000 Horizontal Slider |
PWG-M-157 |
0.20–0.20 |
0.21–0.21 |
Vinyl |
15 |
N, NC, SC, S |
East Premium/Premium EP Replacement |
PWG-M-35 |
0.16–0.20 |
0.14–0.25 |
Vinyl |
40 |
N, NC, SC, S |
Ecosmart/Uniframe Horizontal Slider |
PWG-M-33 |
0.15–0.20 |
0.13–0.26 |
Vinyl |
15 |
N, NC, SC, S |
Ply Gem 1500 Horizontal Slider |
PWG-M-169 |
0.18–0.20 |
0.12–0.24 |
Vinyl |
15 |
N, NC, SC, S |
Premium 1000 Horizontal Slider |
PWG-M-35 |
0.16–0.20 |
0.15–0.28 |
Vinyl |
15 |
N, NC, SC, S |
Premium Replacement Horizontal Slider (Energy Package) |
PWG-M-37 |
0.16–0.20 |
0.15–0.27 |
Vinyl |
45 |
N, NC, SC, S |
Premium Replacement Horizontal Slider |
PWG-M-38 |
0.17–0.20 |
0.15–0.27 |
Vinyl |
30 |
N, NC, SC, S |
Pro Replacement Horizontal Slider |
PWG-M-36 |
0.18–0.20 |
0.15–0.23 |
Vinyl |
30 |
N, NC, SC, S |
Pro Series 200 Horizontal Slider |
PWG-M-121 |
0.19–0.20 |
0.20–0.24 |
Vinyl |
15 |
N, NC, SC, S |
West Pro Series 200 |
PWG-M-121 |
0.19–0.20 |
0.11–0.26 |
Vinyl |
40 |
N, NC, SC, S |
Polaris Technologies
|
Product Line |
CPD Number |
U-Factor |
SHGC |
Frame Type |
PG |
Climate Zones |
7030 Slider |
POL-M-21 |
0.17–0.20 |
0.14–0.33 |
Vinyl |
15 |
N, NC, SC, S |
UltraWeld 8430 Slider |
POL-M-36 |
0.16–0.20 |
0.13–0.30 |
Vinyl |
45 |
N, NC, SC, S |
7430 Slider |
POL-M-43 |
0.16–0.20 |
0.14–0.34 |
Vinyl |
35 |
N, NC, SC, S |
ProVia Door, Inc.
|
Product Line |
CPD Number |
U-Factor |
SHGC |
Frame Type |
PG |
Climate Zones |
Aeris Wood Clad Vinyl Slider |
PRD-K-62 |
0.17–0.18 |
0.17–0.24 |
Wood and Clad Wood |
50 |
N, NC, SC, S |
Aspect/Endure 502/602 Vinyl Slider |
PRD-K-74 |
0.16–0.19 |
0.18–0.26 |
Vinyl |
30 |
N, NC, SC, S |
Seaway Mfg. Corp.
|
Product Line |
CPD Number |
U-Factor |
SHGC |
Frame Type |
PG |
Climate Zones |
Encore-Elite/Signature-Gold |
SMA-A-27 |
0.16–0.20 |
0.22–0.25 |
Vinyl |
55/35 |
N, NC, SC, S |
Seven D Industries LP
|
Product Line |
CPD Number |
U-Factor |
SHGC |
Frame Type |
PG |
Climate Zones |
7700/7800 Horizontal Slider |
SED-A-43 |
0.17–0.18 |
0.25–0.28 |
Vinyl |
30 |
N, NC, SC, S |
Simonton Windows, Inc.
|
Product Line |
CPD Number |
U-Factor |
SHGC |
Frame Type |
PG |
Climate Zones |
Madeira/Window World 4000/America's Dream Window |
SBP-A-59 |
0.18–0.20 |
0.16–0.24 |
Vinyl |
25 |
N, NC, SC, S |
Madeira/Window World 4000/America's Dream Window |
SBP-A-58 |
0.17–0.20 |
0.17–0.26 |
Vinyl |
25 |
N, NC, SC, S |
Reflections 5500/ PerfeXion Platinum/ Impressions 9800/6500 |
SBP-A-41 |
0.19–0.20 |
0.15–0.24 |
Vinyl |
55 |
N, NC, SC, S |
Reflections 5500/ Prism Platinum/ Grand Estates Premier/ Grand Estates Premium Plus/ Impressions 9800/ Generations/ Grandura |
SBP-A-41 |
0.18–0.19 |
0.17–0.22 |
Vinyl |
20 |
N, NC, SC, S |
Slocomb Windows and Doors
|
Product Line |
CPD Number |
U-Factor |
SHGC |
Frame Type |
PG |
Climate Zones |
400 Series Slider |
SLC-K-4 |
0.16–0.20 |
0.13–0.23 |
Vinyl |
30 |
N, NC, SC, S |
Soft-Lite LLC
|
Product Line |
CPD Number |
U-Factor |
SHGC |
Frame Type |
PG |
Climate Zones |
Barrington |
SLL-A-12 |
0.18–0.20 |
0.18–0.27 |
Vinyl |
40 |
N, NC, SC, S |
Barrington |
SLL-A-46 |
0.18–0.20 |
0.18–0.27 |
Vinyl |
40 |
N, NC, SC, S |
Bainbridge |
SLL-A-36 |
0.17–0.19 |
0.18–0.27 |
Vinyl |
40 |
N, NC, SC, S |
Classic |
SLL-A-60 |
0.17–0.20 |
0.17–0.26 |
Vinyl |
35 |
N, NC, SC, S |
Pro |
SLL-A-61 |
0.17–0.20 |
0.17–0.26 |
Vinyl |
35 |
N, NC, SC, S |
Imperial LS |
SLL-A-30 |
0.17–0.20 |
0.15–0.24 |
Vinyl |
55 |
N, NC, SC, S |
Elements |
SLL-A-28 |
0.16–0.20 |
0.15–0.24 |
Vinyl |
55 |
N, NC, SC, S |
Sunrise Windows, Ltd.
|
Product Line |
CPD Number |
U-Factor |
SHGC |
Frame Type |
PG |
Climate Zones |
Sunrise/ Restorations/ Solace/ Vanguard/ V-Class/ Verde/ Season-Tech |
SUW-K-2 |
0.17–0.19 |
0.15–0.25 |
Vinyl |
35 |
N, NC, SC, S |
Sunrise/ Restorations/ Solace/ Vanguard/ V-Class/ Verde/ Season-Tech |
SUW-K-6 |
0.17–0.19 |
0.15–0.25 |
Vinyl |
25 |
N, NC, SC, S |
Thermo-Tech Windows and Doors
|
Product Line |
CPD Number |
U-Factor |
SHGC |
Frame Type |
PG |
Climate Zones |
Northern Elevations Slider |
TTW-A-25 |
0.17-0.2 |
0.15-0.44 |
Vinyl |
45 |
N, NC, SC, S |
Value Windows and Doors, Inc.
|
Product Line |
CPD Number |
U-Factor |
SHGC |
Frame Type |
PG |
Climate Zones |
GS-XO TRIPLE PANE |
VWS-A-42-00040-00001 |
0.19–0.20 |
0.16–0.18 |
Vinyl |
35 |
S |
Vector Windows
|
Product Line |
CPD Number |
U-Factor |
SHGC |
Frame Type |
PG |
Climate Zones |
Envision Glider |
RRT-K-045 |
0.17-0.18 |
0.25–0.28 |
Vinyl |
50 |
N, NC, SC, S |
Envision Double Glider |
RRT-K-047 |
0.18-0.19 |
0.24–0.26 |
Vinyl |
25 |
N, NC, SC, S |
Vinyl Window Designs Ltd.
|
Product Line |
CPD Number |
U-Factor |
SHGC |
Frame Type |
PG |
Climate Zones |
303 Single Slider Lift-Out/Lift-Out End Vent |
VID-N-18 |
0.18 |
0.26 |
Vinyl |
50 |
N, NC |
Vinylmax LLC
|
Product Line |
CPD Number |
U-Factor |
SHGC |
Frame Type |
PG |
Climate Zones |
4600/4700/4800 Series |
VIM-M-47 |
0.15–0.20 |
0.16–0.27 |
Vinyl |
25 |
N, NC, SC, S |
Radiance Series |
VIM-M-20 |
0.16–0.20 |
0.18–0.26 |
Vinyl |
35 |
N, NC, SC, S |
Sherwood Series |
VIM-M-24 |
0.18–0.20 |
0.15–0.23 |
Wood and Clad Wood |
50 |
N, NC. SC, S |
Vista Window Company, LLC
|
Product Line |
CPD Number |
U-Factor |
SHGC |
Frame Type |
PG |
Climate Zones |
Panorama Horizontal Slider |
VWC-K-2 |
0.17–0.19 |
0.22–0.26 |
Vinyl |
30 |
N, NC, SC, S |
Panorama Tilt-N-Slide |
VWC-K-16 |
0.19–0.20 |
0.20–0.24 |
Vinyl |
15 |
N, NC, SC, S |
Vytex Corporation
|
Product Line |
CPD Number |
U-Factor |
SHGC |
Frame Type |
PG |
Climate Zones |
Fortis Series |
VYW-M-29 |
0.16–0.20 |
0.16–0.25 |
Vinyl |
50 |
N, NC, SC, S |
Potomac Series |
VYW-M-27 |
0.16–0.20 |
0.14–0.25 |
Vinyl |
30 |
N, NC, SC, S |
Winchester Industries
|
Product Line |
CPD Number |
U-Factor |
SHGC |
Frame Type |
PG |
Climate Zones |
Bristol 558 S-N-S Slider |
WCI-K-7 |
0.18–0.20 |
0.15–0.23 |
Vinyl |
30 |
N, NC, SC, S |
Bristol SNS Slider |
WCI-K-7 |
0.18–0.20 |
0.15–0.23 |
Vinyl |
30 |
N, NC, SC, S |
Window Mart Mfg. LLC.
|
Product Line |
CPD Number |
U-Factor |
SHGC |
Frame Type |
PG |
Climate Zones |
1045 Double Slider |
WMI-K-14 |
0.18–0.20 |
0.09–0.21 |
Vinyl |
30 |
N, NC, SC, S |
2545 Double Slider |
WMI-K-9 |
0.18–0.20 |
0.09–0.21 |
Vinyl |
25 |
N, NC, SC, S |
3545 Double Slider |
WMI-K-19 |
0.17–0.20 |
0.11–0.23 |
Vinyl |
25 |
N, NC, SC, S |