Centric Air QA-Deluxe 4800 ECM
A low-cost ducted fan with an R-5 damper for a typical home; the ECM motor and three speeds cut running costs.
Amazon $1,299 Centric Air $1,197$1,197
The Centric Air QA-Deluxe 4800 ECM is the better whole house fan overall, rated 3.7 to 3.6. The Centric Air QA-Deluxe 4800 ECM leads on value. The QuietCool Energy Saver ES-4700 RF wins on efficiency. The Centric Air QA-Deluxe 4800 ECM costs $152 less ($1,197 vs $1,349).
QuietCool Energy Saver ES-4700 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 $1,349$1,349
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 Centric Air QA-Deluxe 4800 ECM for value ($373.01 per 1,000 CFM ($1,197, 3,209 CFM) vs $437.99 per 1,000 CFM ($1,349, 3,080 CFM)).
- Choose the QuietCool Energy Saver ES-4700 RF for efficiency (7.4 CFM per watt vs 6.5 CFM per watt).
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 | Centric Air QA-Deluxe 4800 ECM | QuietCool Energy Saver ES-4700 RF |
|---|---|---|
| Overall rating | 3.7/5 | 3.6/5 |
| Value 30% | 63 $373.01 per 1,000 CFM ($1,197, 3,209 CFM) | 51 $437.99 per 1,000 CFM ($1,349, 3,080 CFM) |
| Efficiency 20% | 25 6.5 CFM per watt | 40 7.4 CFM per watt |
| Noise 15% | 63 51 dBA at high speed | 50 noise rating not published (neutral score used) |
| 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
| Centric Air QA-Deluxe 4800 ECM | QuietCool Energy Saver ES-4700 RF | |
|---|---|---|
| Airflow | ||
| Airflow, high speed | 3,209 CFM | 3,080 CFM |
| Power, high speed | 491 W | 415 W |
| Efficiency | 6.5 CFM/W | 7.4 CFM/W |
| Speeds | 3 | 2 |
| Noise | 51 dBA | - |
| Install | ||
| Mount | Ducted | Ducted |
| Damper | R-5 insulated | R-5 insulated |
| Ceiling opening | 14 x 28 in | 14.25 x 30.25 in |
| Attic vent area needed | 4.5 sq ft | 5.6 sq ft |
| Voltage | 120 V | 120 V |
| Remote or wall control | Yes | Yes |
| App or remote monitoring | - | No |
| Warranty | ||
| Warranty | 10 years | 10 years |