March 2, 2015
The Following Okna Casement Windows designated as 
Most Efficient 2015" by energystar.gov
Compare OKNA to other "Most Efficient 2015" and see why Okna is our first choice.
* for more information on understanding performance ratings see (Understanding NFRC)
*data source
OKNA Windows & Doors
|
Product Line |
CPD Number |
U-Factor |
SHGC |
Frame Type |
PG |
Climate Zones |
|
Casement – 700 Series |
OKW-K-26 |
0.16–0.20 |
0.22–0.24 |
Vinyl |
70 |
N, NC, SC, S |
Champion Window
|
Product Line |
CPD Number |
U-Factor |
SHGC |
Frame Type |
PG |
Climate Zones |
|
Comfort 365 Extreme Energy |
CHW-A-2 |
0.19–0.20 |
0.21–0.24 |
Vinyl |
30 |
N, NC, SC, S |
|
Comfort 365 Extreme Energy |
CHW-A-3 |
0.18–0.20 |
0.21–0.25 |
Vinyl |
35 |
N, NC, SC, S |
Marvin Windows and Doors
|
Product Line |
CPD Number |
U-Factor |
SHGC |
Frame Type |
PG |
Climate Zones |
|
Clad Ultimate Casement Venting Picture |
MAR-N-378 |
0.17–0.20 |
0.20–0.40 |
Wood and Clad Wood |
40 |
N, NC, SC, S |
|
Clad Ultimate Casement Round Top Operator |
MAR-N-357 |
0.19–0.20 |
0.20–0.25 |
Wood and Clad Wood |
50 |
N, NC, SC, S |
|
Clad Ultimate Pushout Casement |
MAR-N-350 |
0.19–0.20 |
0.20–0.25 |
Wood and Clad Wood |
35 |
N, NC, SC, S |
|
Clad Ultimate Awning |
MAR-N-343 |
0.18–0.20 |
0.20–0.39 |
Wood and Clad Wood |
40 |
N, NC, SC, S |
|
Clad Ultimate Casement |
MAR-N-342 |
0.18–0.20 |
0.20–0.39 |
Wood and Clad Wood |
50 |
N, NC, SC, S |
|
Clad Ultimate Pushout Awning |
MAR-N-360 |
0.20–0.20 |
0.20–0.25 |
Wood and Clad Wood |
35 |
N, NC, SC, S |
|
Integrity Awning |
MAR-N-251 |
0.20–0.20 |
0.23–0.27 |
Fiberglass |
50 |
N, NC, SC, S |
|
Integrity Casement |
MAR-N-250 |
0.20–0.20 |
0.23–0.27 |
Fiberglass |
50 |
N, NC, SC, S |
|
Wood Magnum Tilt-Turn |
MAR-N-44 |
0.18–0.20 |
0.14–0.38 |
Wood and Clad Wood |
40 |
N, NC, SC, S |
|
Wood Magnum Tilt-Turn 4 9/16 Jamb |
MAR-N-328 |
0.19–0.20 |
0.13–0.37 |
Wood and Clad Wood |
40 |
N, NC, SC, S |
|
Wood Ultimate Casement Picture |
MAR-N-355 |
0.16–0.20 |
0.22–0.44 |
Wood and Clad Wood |
50 |
N, NC, SC, S |
|
Wood Ultimate Pushout Casement Picture |
MAR-N-349 |
0.17–0.20 |
0.21–0.44 |
Wood and Clad Wood |
35 |
N, NC, SC, S |
|
Wood Ultimate Awning |
MAR-N-354 |
0.19–0.20 |
0.21–0.36 |
Wood and Clad Wood |
50 |
N, NC, SC, S |
|
Wood Ultimate Casement |
MAR-N-347 |
0.19–0.20 |
0.20–0.38 |
Wood and Clad Wood |
50 |
N, NC, SC, S |
|
Wood Ultimate Pushout Awning |
MAR-N-358 |
0.20–0.20 |
0.21–0.23 |
Wood and Clad Wood |
30 |
N, NC, SC, S |
|
Wood Ultimate Pushout Casement |
MAR-N-348 |
0.20–0.20 |
0.20–0.24 |
Wood and Clad Wood |
35 |
N, NC, SC, S |
|
Clad Magnum Tilt-Turn |
MAR-N-45 |
0.20–0.20 |
0.14–0.25 |
Wood and Clad Wood |
50 |
N, NC, SC, S |
Pella Corporation
|
Product Line |
CPD Number |
U-Factor |
SHGC |
Frame Type |
PG |
Climate Zones |
|
350 Series Casement (Nail Fin) |
PEL-N-184 |
0.17–0.20 |
0.18–0.20 |
Vinyl |
60 |
N, NC, SC, S |
|
350 Series Casement (Pocket Frame) |
PEL-N-188 |
0.17–0.20 |
0.18–0.20 |
Vinyl |
60 |
N, NC, SC, S |
|
350 Series Awning (Nail Fin) |
PEL-N-187 |
0.17–0.20 |
0.18–0.20 |
Vinyl |
60 |
N, NC, SC, S |
|
350 Series Awning (Pocket Frame) |
PEL-N-189 |
0.17–0.20 |
0.18–0.20 |
Vinyl |
55 |
N, NC, SC, S |
|
Pella Architect Series Aluminum Clad Fixed Casement with Advanced Low-E Triple IG |
PEL-N-1 |
0.17–0.20 |
0.21–0.27 |
Wood and Clad Wood |
30 |
N, NC, SC, S |
|
Pella Architect Series Aluminum Clad Fixed Casement with SunDefense Low-E Triple IG |
PEL-N-1 |
0.17–0.20 |
0.16–0.20 |
Wood and Clad Wood |
30 |
N, NC, SC, S |
|
Pella Architect Series Aluminum Clad Fixed Casement with NaturalSun Low-E Triple IG |
PEL-N-1 |
0.17–0.20 |
0.35–0.44 |
Wood and Clad Wood |
30 |
N, NC |
|
Pella Architect Series Aluminum Clad Casement with Advanced Low-E Triple IG |
PEL-N-11 |
0.19–0.20 |
0.21–0.23 |
Wood and Clad Wood |
50 |
N, NC, SC, S |
|
Pella Architect Series Aluminum Clad Casement with SunDefense Low-E Triple IG |
PEL-N-11 |
0.19–0.20 |
0.16–0.17 |
Wood and Clad Wood |
50 |
NC, SC, S |
|
Pella Architect Series Aluminum Clad Casement with NaturalSun Low-E Triple IG |
PEL-N-11 |
0.19–0.20 |
0.36–0.39 |
Wood and Clad Wood |
50 |
N, NC |
|
Pella Architect Series Aluminum Clad Casement with NaturalSun Low-E Triple IG |
PEL-N-30 |
0.19–0.20 |
0.21–0.23 |
Wood and Clad Wood |
50 |
N, NC, SC, S |
|
Pella Architect Series Aluminum Clad Awning with SunDefense Low-E Triple IG |
PEL-N-30 |
0.19–0.20 |
0.16–0.17 |
Wood and Clad Wood |
50 |
NC, SC, S |
|
Pella Architect Series Aluminum Clad Awning with NaturalSun Low-E Triple IG |
PEL-N-30 |
0.19–0.20 |
0.36–0.39 |
Wood and Clad Wood |
50 |
N, NC |
|
Pella Architect Series Aluminum Clad Large Awning with Advanced Low-E Triple IG |
PEL-N-30 |
0.19–0.20 |
0.21–0.23 |
Wood and Clad Wood |
40 |
N, NC, SC, S |
|
Pella Architect Series Aluminum Clad Large Awning with SunDefense Low-E Triple IG |
PEL-N-30 |
0.19–0.20 |
0.16–0.17 |
Wood and Clad Wood |
40 |
NC, SC, S |
|
Pella Architect Series Aluminum Clad Large Awning with NaturalSun Low-E Triple IG |
PEL-N-30 |
0.19–0.20 |
0.36–0.39 |
Wood and Clad Wood |
40 |
N, NC |
|
Pella Architect Series Wood Casement with Advanced Low-E Triple IG |
PEL-N-39 |
0.18–0.20 |
0.19–0.23 |
Wood and Clad Wood |
50 |
N, NC, SC, S |
|
Pella Architect Series Wood Casement with SunDefense Low-E Triple IG |
PEL-N-39 |
0.17–0.20 |
0.15–0.17 |
Wood and Clad Wood |
50 |
NC, SC, S |
|
Pella Architect Series Wood Casement with NaturalSun Low-E Triple IG |
PEL-N-39 |
0.18–0.20 |
0.32–0.39 |
Wood and Clad Wood |
50 |
N, NC |
|
Pella Architect Series Wood Awning with Advanced Low-E Triple IG |
PEL-N-40 |
0.18–0.20 |
0.19–0.23 |
Wood and Clad Wood |
50 |
N, NC, SC, S |
|
Pella Architect Series Wood Awning with Advanced Low-E Triple IG |
PEL-N-40 |
0.18–0.20 |
0.15–0.17 |
Wood and Clad Wood |
50 |
NC, SC, S |
|
Pella Architect Series Wood Awning with NaturalSun Low-E Triple IG |
PEL-N-40 |
0.18–0.20 |
0.32–0.39 |
Wood and Clad Wood |
50 |
N, NC |
|
Pella Architect Series Wood Large Awning with Advanced Low-E Triple IG |
PEL-N-40 |
0.18–0.20 |
0.19–0.23 |
Wood and Clad Wood |
40 |
N, NC, SC, S |
|
Pella Architect Series Wood Large Awning with SunDefense Low-E Triple IG |
PEL-N-40 |
0.18–0.20 |
0.15–0.17 |
Wood and Clad Wood |
40 |
NC, SC, S |
|
Pella Architect Series Wood Large Awning with NaturalSun Low-E Triple IG |
PEL-N-40 |
0.18–0.20 |
0.32–0.39 |
Wood and Clad Wood |
40 |
N, NC |
|
Pella Architect Series Wood Fixed Casement with Advanced Low-E Triple IG |
PEL-N-41 |
0.16–0.20 |
0.21–0.27 |
Wood and Clad Wood |
30 |
N, NC, S, SC |
|
Pella Architect Series Wood Fixed Casement with SunDefense Low-E Triple IG |
PEL-N-41 |
0.16–0.20 |
0.16–0.20 |
Wood and Clad Wood |
30 |
N, NC, S, SC |
|
Pella Architect Series Wood Fixed Casement with NaturalSun Low-E Triple IG |
PEL-N-41 |
0.16–0.20 |
0.35–0.45 |
Wood and Clad Wood |
30 |
N, NC |
Soft-Lite LLC
|
Product Line |
CPD Number |
U-Factor |
SHGC |
Frame Type |
PG |
Climate Zones |
|
Casement |
SSL-A-81 |
0.15–0.20 |
0.15–0.37 |
Vinyl |
40 |
N, NC, SC, S |
|
Awning |
SSL-A-82 |
0.15–0.20 |
0.15–0.37 |
Vinyl |
40 |
N, NC, SC, S |
