QuietCool
QuietCool Classic Advanced Whole House Fan (QC CL-4700 RF)
$1109Cheaper
Best Whole House Fans · head-to-head
QuietCool Classic Advanced Whole House Fan (QC CL-4700 RF) vs CentricAir 3.4
A sourced, side-by-side comparison. QuietCool Classic Advanced Whole House Fan (QC CL-4700 RF) is cheaper at $1109. Every spec and price links to its source.
CentricAir
CentricAir 3.4
$1449
Which is better: the QuietCool Classic Advanced Whole House Fan (QC CL-4700 RF) or CentricAir 3.4?
On the specs we track, they're closely matched. The QuietCool Classic Advanced Whole House Fan (QC CL-4700 RF) is the cheaper at $1109.
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Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | QuietCool Classic Advanced Whole House Fan (QC CL-4700 RF) | CentricAir 3.4 |
|---|---|---|
| US price | $1109 | $1449 |
| Brand | QuietCool | CentricAir |
| Released | — | — |
| Airflow (CFM) | 4,415 / 3,402 CFM (high/low) | 3,242 / 1,409 CFM (high/low, CA Title 24 / HVI-916 rated) |
| Coverage (sq ft) | up to 2,208 sq ft | up to 2,500 sq ft (1-story) / up to 3,400 sq ft (2-story) |
| Speed settings | 2 | 2 |
| Drive type | ducted | ducted |
| Insulated damper | Yes | Yes |
| Remote or app control | Yes | Yes |
| Sound level note | ~54 dBA on high; acoustical duct + R5 damper box reduce noise/vibration | 49 dBA high / 47 dBA low |
| Motor warranty years | 10 | 15 |
Sources — QuietCool Classic Advanced Whole House Fan (QC CL-4700 RF): lowes.com (verified 2026-08-16). CentricAir 3.4: centricair.com (verified 2026-08-16).
What's the difference between the QuietCool Classic Advanced Whole House Fan (QC CL-4700 RF) and CentricAir 3.4?
Where the two actually differ on the specs we track (4 of 8). Matching specs are omitted.
- Airflow (CFM): QuietCool Classic Advanced Whole House Fan (QC CL-4700 RF) 4,415 / 3,402 CFM (high/low) vs CentricAir 3.4 3,242 / 1,409 CFM (high/low, CA Title 24 / HVI-916 rated)
- Coverage (sq ft): QuietCool Classic Advanced Whole House Fan (QC CL-4700 RF) up to 2,208 sq ft vs CentricAir 3.4 up to 2,500 sq ft (1-story) / up to 3,400 sq ft (2-story)
- Sound level note: QuietCool Classic Advanced Whole House Fan (QC CL-4700 RF) ~54 dBA on high; acoustical duct + R5 damper box reduce noise/vibration vs CentricAir 3.4 49 dBA high / 47 dBA low
- Motor warranty years: QuietCool Classic Advanced Whole House Fan (QC CL-4700 RF) 10 vs CentricAir 3.4 15