Centric Air QA-Deluxe 5500
A low-cost ducted fan with an R-5 damper for a typical home, if you accept higher power use than ECM models.
Amazon $1,058 Centric Air $1,049$1,049
The Centric Air QA-Deluxe 5500 is the better whole house fan overall, rated 3.8 to 3.6. The Centric Air QA-Deluxe 5500 leads on value. The Centric Air QA-Deluxe 5500 costs $600 less ($1,049 vs $1,649).
Centric Air 4.0
An efficient ducted fan with a 15-year motor warranty for a typical home.
Amazon $1,788 Centric Air $1,649$1,649
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 5500 for value ($265.91 per 1,000 CFM ($1,049, 3,945 CFM) vs $420.56 per 1,000 CFM ($1,649, 3,921 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 | Centric Air QA-Deluxe 5500 | Centric Air 4.0 |
|---|---|---|
| Overall rating | 3.8/5 | 3.6/5 |
| Value 30% | 87 $265.91 per 1,000 CFM ($1,049, 3,945 CFM) | 54 $420.56 per 1,000 CFM ($1,649, 3,921 CFM) |
| Efficiency 20% | 17 6 CFM per watt | 22 6.3 CFM per watt |
| Noise 15% | 63 51 dBA at high speed | 70 49 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 15-year warranty on the motor |
Specifications
| Centric Air QA-Deluxe 5500 | Centric Air 4.0 | |
|---|---|---|
| Airflow | ||
| Airflow, high speed | 3,945 CFM | 3,921 CFM |
| Power, high speed | 662 W | 623 W |
| Efficiency | 6 CFM/W | 6.3 CFM/W |
| Speeds | 2 | 2 |
| Noise | 51 dBA | 49 dBA |
| Install | ||
| Mount | Ducted | Ducted |
| Damper | R-5 insulated | R-5 insulated |
| Ceiling opening | 14 x 28 in | 14 x 28 in |
| Attic vent area needed | 4.5 sq ft | 5.2 sq ft |
| Voltage | 120 V | 120 V |
| Remote or wall control | Yes | Yes |
| Warranty | ||
| Warranty | 10 years | 15 years |