QuietCool Energy Saver ES-6000 RF
The efficient version of QuietCool’s ducted fan for a typical home, with a very low-power low speed for running all night.
Amazon $1,599$1,599
The QuietCool Energy Saver ES-6000 RF is the better whole house fan overall, rated 3.9 to 3.8. The QuietCool Energy Saver ES-6000 RF leads on efficiency. The QuietCool Classic CL-5400 RF wins on value. The QuietCool Classic CL-5400 RF costs $390 less ($1,209 vs $1,599).
QuietCool Classic CL-5400 RF
A ducted Classic fan with a 10-year warranty for a typical home. It costs less up front than the Energy Saver but draws more power.
Amazon $1,209$1,209
Prices were last checked November 2, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Which should you buy?
- Choose the QuietCool Energy Saver ES-6000 RF for efficiency (8.9 CFM per watt vs 6.2 CFM per watt).
- Choose the QuietCool Classic CL-5400 RF for value ($306.08 per 1,000 CFM ($1,209, 3,950 CFM) vs $395.79 per 1,000 CFM ($1,599, 4,040 CFM)).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every 3,001 to 5,000 CFM whole house fan; a clear win is highlighted. How we rank explains each one.
| Factor weight | QuietCool Energy Saver ES-6000 RF | QuietCool Classic CL-5400 RF |
|---|---|---|
| Overall rating | 3.9/5 | 3.8/5 |
| Value 30% | 58 $395.79 per 1,000 CFM ($1,599, 4,040 CFM) | 77 $306.08 per 1,000 CFM ($1,209, 3,950 CFM) |
| Efficiency 20% | 65 8.9 CFM per watt | 20 6.2 CFM per watt |
| Noise 15% | 69 49.3 dBA at high speed | 63 51.2 dBA at high speed |
| Damper 10% | 33 R-5 insulated damper | 33 R-5 insulated damper |
| Warranty 25% | 100 10-year warranty on the motor | 100 10-year warranty on the motor |
Specifications
| QuietCool Energy Saver ES-6000 RF | QuietCool Classic CL-5400 RF | |
|---|---|---|
| Airflow | ||
| Airflow, high speed | 4,040 CFM | 3,950 CFM |
| Power, high speed | 455 W | 634 W |
| Efficiency | 8.9 CFM/W | 6.2 CFM/W |
| Speeds | 2 | 2 |
| Noise | 49.3 dBA | 51.2 dBA |
| Install | ||
| Mount | Ducted | Ducted |
| Damper | R-5 insulated | R-5 insulated |
| Ceiling opening | 14.25 x 36.25 in | 14.25 x 30.25 in |
| Attic vent area needed | 7.4 sq ft | 6.7 sq ft |
| Voltage | 120 V | 120 V |
| Remote or wall control | Yes | Yes |
| App or remote monitoring | No | No |
| Warranty | ||
| Warranty | 10 years | 10 years |