QuietCool Energy Saver ES-7000 RF
The efficient version of QuietCool’s ducted fan for a large or two-story home, with a very low-power low speed for running all night.
Amazon $1,799$1,799
The QuietCool Energy Saver ES-7000 RF is the better whole house fan overall, rated 3.8 to 2.7. The QuietCool Energy Saver ES-7000 RF leads on warranty, noise and efficiency. The AirScape Sierra 5300 wins on damper. The QuietCool Energy Saver ES-7000 RF costs $490 less ($1,799 vs $2,289).
AirScape Sierra 5300
A premium ducted fan for a large home in a cold or mixed climate, where the motorized R13 doors earn their cost.
HVACQuick $2,289$2,289
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-7000 RF for warranty (10-year warranty on the motor vs 3-year warranty on the motor), noise (51.7 dBA at high speed vs 68 dBA at high speed) and efficiency (7.1 CFM per watt vs 5.9 CFM per watt).
- Choose the AirScape Sierra 5300 for damper (R-13 insulated damper vs R-5 insulated damper).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every over 5,000 CFM whole house fan; a clear win is highlighted. How we rank explains each one.
| Factor weight | QuietCool Energy Saver ES-7000 RF | AirScape Sierra 5300 |
|---|---|---|
| Overall rating | 3.8/5 | 2.7/5 |
| Value 30% | 67 $347.97 per 1,000 CFM ($1,799, 5,170 CFM) | 55 $414.15 per 1,000 CFM ($2,289, 5,527 CFM) |
| Efficiency 20% | 35 7.1 CFM per watt | 15 5.9 CFM per watt |
| Noise 15% | 61 51.7 dBA at high speed | 7 68 dBA at high speed |
| Damper 10% | 33 R-5 insulated damper | 87 R-13 insulated damper |
| Warranty 25% | 100 10-year warranty on the motor | 22 3-year warranty on the motor |
Specifications
| QuietCool Energy Saver ES-7000 RF | AirScape Sierra 5300 | |
|---|---|---|
| Airflow | ||
| Airflow, high speed | 5,170 CFM | 5,527 CFM |
| Power, high speed | 727 W | 932 W |
| Efficiency | 7.1 CFM/W | 5.9 CFM/W |
| Speeds | 2 | 10 |
| Noise | 51.7 dBA | 68 dBA |
| Install | ||
| Mount | Ducted | Ducted |
| Damper | R-5 insulated | R-13 insulated |
| Ceiling opening | 14.25 x 36.25 in | 22.5 x 26.5 in |
| Attic vent area needed | 9.2 sq ft | 7.1 sq ft |
| Voltage | 120 V | 120 V |
| Remote or wall control | Yes | Yes |
| App or remote monitoring | No | - |
| Warranty | ||
| Warranty | 10 years | 3 years |