Loren Cook Company GC-128vsTech Drive TD-BF-04
Side-by-side ventilating fan comparison
Loren Cook Company GC-128
Airflow
82CFM
Efficacy
2.9CFM/W
Sound Level
0.9sones
Type
Bathroom/Utility Room
Tech Drive TD-BF-04
Airflow
80CFM
Efficacy
4.3CFM/W
Sound Level
1.5sones
Type
Bathroom/Utility Room
Key differences
Tech Drive TD-BF-04 is 33% more efficient at 4.3 CFM/W versus 2.9 CFM/W for the Loren Cook Company GC-128. The Loren Cook Company GC-128 is larger at 82 CFM versus 80 CFM. Overall, the Tech Drive TD-BF-04 sits higher in the category, ranking above 13% of certified ventilating fans.
Performance
| Spec | Loren Cook Company | Tech Drive |
|---|---|---|
| Airflow(CFM) | 82 | 80 |
| Efficacy(CFM/W) | 2.9 | 4.3 |
| Sound Level(sones) | 0.9 | 1.5 |
| Number of Speeds | 1 | 1 |
Installation
| Spec | Loren Cook Company | Tech Drive |
|---|---|---|
| Unit Type | Bathroom/Utility Room | Bathroom/Utility Room |
| Duct Size | 5.94 inch diameter | 4.00 inch diameter |
| Airflow at 0.25 in w.g.(CFM) | 63.2 | 57.7 |
| Sound at 0.25 in w.g.(sones) | 0.9 | 0 |
Lighting
| Spec | Loren Cook Company | Tech Drive |
|---|---|---|
| Includes Lighting | No | No |
| Ships with ENERGY STAR Lamp | No | No |