Delta SLM70D2vsOrtech ODD-70-1
Side-by-side ventilating fan comparison
Delta SLM70D2
Airflow
70CFM
Efficacy
7CFM/W
Type
Bathroom/Utility Room
Ortech ODD-70-1
Airflow
75CFM
Efficacy
16.7CFM/W
Sound Level
0.4sones
Type
Bathroom/Utility Room
Key differences
Ortech ODD-70-1 is 58% more efficient at 16.7 CFM/W versus 7.0 CFM/W for the Delta SLM70D2. The Ortech ODD-70-1 is larger at 75 CFM versus 70 CFM. Overall, the Ortech ODD-70-1 sits higher in the category, ranking above 100% of certified ventilating fans.
Performance
| Spec | Delta | Ortech |
|---|---|---|
| Airflow(CFM) | 70 | 75 |
| Efficacy(CFM/W) | 7 | 16.7 |
| Sound Level(sones) | — | 0.4 |
| Number of Speeds | 2 | 1 |
Installation
| Spec | Delta | Ortech |
|---|---|---|
| Unit Type | Bathroom/Utility Room | Bathroom/Utility Room |
| Duct Size | 3.00 inch diameter | 4.00 inch diameter |
| Airflow at 0.25 in w.g.(CFM) | 60.5 | 62.3 |
| Sound at 0.25 in w.g.(sones) | 1.3 | 1.1 |
Lighting
| Spec | Delta | Ortech |
|---|---|---|
| Includes Lighting | No | No |
| Ships with ENERGY STAR Lamp | No | No |