Centric Air 2.7
An efficient ducted fan with a 15-year motor warranty for a small home or one floor.
Amazon $1,249$1,249
3.8/5
A ducted Classic fan with a 10-year warranty for a small home or one zone. It costs less up front than the Energy Saver but draws more power.
- 2,380 CFMAirflow
- 299 WPower
- 49.4 dBANoise
- R-5 insulatedDamper
Check price at Amazon$949
Price checked November 2, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- Ducted motor sits away from the ceiling, so it runs quieter than a fan in the opening
- R5 dampers seal the ceiling opening in winter
- 10-year warranty
- Wireless remote and wall control included
Cons
- Uses more power per CFM than the matching Energy Saver model
- Certified airflow (2,380 CFM) is well under the 3,126 CFM in the product name
The QuietCool Classic RF family
Every QuietCool Classic RF model we rank, smallest first. Ratings compare each against its own size.
| Model | Airflow | Rating | Price |
|---|---|---|---|
| QuietCool Classic CL-1500 RF | 1,100 CFM | 3.9/5 | $639 |
| QuietCool Classic CL-2250 RF | 1,770 CFM | 3.7/5 | $849 |
| QuietCool Classic CL-3100 RF (this one) | 2,380 CFM | 3.8/5 | $949 |
| QuietCool Classic CL-4700 RF | 3,230 CFM | 3.7/5 | $1,109 |
| QuietCool Classic CL-5400 RF | 3,950 CFM | 3.8/5 | $1,209 |
| QuietCool Classic CL-7000 RF | 5,300 CFM | 3.7/5 | $1,449 |
How it scores
The rating comes from 5 measured or published factors, each scored 0-100 against fixed reference points for its size. How we rank explains each one.
Specifications
| Model number | QC CL-3100 RF |
|---|---|
| Airflow | |
| Airflow, high speed | 2,380 CFM |
| Power, high speed | 299 W |
| Efficiency | 8 CFM/W |
| Speeds | 2 |
| Noise | 49.4 dBA |
| Install | |
| Mount | Ducted |
| Damper | R-5 insulated |
| Ceiling opening | 14.25 x 22.25 in |
| Attic vent area needed | 4.2 sq ft |
| Voltage | 120 V |
| Remote or wall control | Yes |
| App or remote monitoring | No |
| Warranty | |
| Warranty | 10 years |
Alternatives in this size
QuietCool Classic CL-1500 RF
A ducted Classic fan with a 10-year warranty for a small home or one zone. It costs less up front than the Energy Saver but draws more power.
Amazon $639$639
QuietCool Energy Saver ES-3100 RF
The efficient version of QuietCool’s ducted fan for a small home or one zone, with a very low-power low speed for running all night.
Amazon $1,199$1,199
Compare
Compare the QuietCool Classic CL-3100 RF with any other whole house fan →
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