QuietCool Classic CL-4700 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 $1,109$1,109
The QuietCool Classic CL-4700 RF and the Centric Air QA-Deluxe 4800 ECM are evenly matched, rated 3.7 and 3.7. The Centric Air QA-Deluxe 4800 ECM wins on efficiency. The QuietCool Classic CL-4700 RF costs $88 less ($1,109 vs $1,197).
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
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 efficiency (6.5 CFM per watt vs 5.9 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 | QuietCool Classic CL-4700 RF | Centric Air QA-Deluxe 4800 ECM |
|---|---|---|
| Overall rating | 3.7/5 | 3.7/5 |
| Value 30% | 68 $343.34 per 1,000 CFM ($1,109, 3,230 CFM) | 63 $373.01 per 1,000 CFM ($1,197, 3,209 CFM) |
| Efficiency 20% | 15 5.9 CFM per watt | 25 6.5 CFM per watt |
| Noise 15% | 69 49.4 dBA at high speed | 63 51 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 Classic CL-4700 RF | Centric Air QA-Deluxe 4800 ECM | |
|---|---|---|
| Airflow | ||
| Airflow, high speed | 3,230 CFM | 3,209 CFM |
| Power, high speed | 551 W | 491 W |
| Efficiency | 5.9 CFM/W | 6.5 CFM/W |
| Speeds | 2 | 3 |
| Noise | 49.4 dBA | 51 dBA |
| Install | ||
| Mount | Ducted | Ducted |
| Damper | R-5 insulated | R-5 insulated |
| Ceiling opening | 14.25 x 30.25 in | 14 x 28 in |
| Attic vent area needed | 5.9 sq ft | 4.5 sq ft |
| Voltage | 120 V | 120 V |
| Remote or wall control | Yes | Yes |
| App or remote monitoring | No | - |
| Warranty | ||
| Warranty | 10 years | 10 years |