QuietCool
QuietCool Classic Advanced Whole House Fan (QC CL-4700 RF)
$1109
Best Whole House Fans · head-to-head
QuietCool Classic Advanced Whole House Fan (QC CL-4700 RF) vs Air Vent 24 in. Direct Drive Whole House Fan (54301)
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.
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) |  Air Vent 24 in. Direct Drive Whole House Fan (54301) |
|---|---|---|
| US price | $1109 | — |
| Brand | QuietCool | Air Vent |
| Released | — | — |
| Airflow (CFM) | 4,415 / 3,402 CFM (high/low) | 3,500 CFM |
| Coverage (sq ft) | up to 2,208 sq ft | up to 1,500 sq ft |
| Speed settings | 2 | 2 |
| Drive type | ducted | direct_drive |
| Insulated damper | Yes | No |
| Remote or app control | Yes | No |
| Sound level note | ~54 dBA on high; acoustical duct + R5 damper box reduce noise/vibration | — |
| Motor warranty years | 10 | 10 |
Sources — QuietCool Classic Advanced Whole House Fan (QC CL-4700 RF): lowes.com (verified 2026-08-16). Air Vent 24 in. Direct Drive Whole House Fan (54301): sutherlands.com (verified 2026-08-16).
What's the difference between the QuietCool Classic Advanced Whole House Fan (QC CL-4700 RF) and Air Vent 24 in. Direct Drive Whole House Fan (54301)?
Where the two actually differ on the specs we track (5 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 Air Vent 24 in. Direct Drive Whole House Fan (54301) 3,500 CFM
- Coverage (sq ft): QuietCool Classic Advanced Whole House Fan (QC CL-4700 RF) up to 2,208 sq ft vs Air Vent 24 in. Direct Drive Whole House Fan (54301) up to 1,500 sq ft
- Drive type: QuietCool Classic Advanced Whole House Fan (QC CL-4700 RF) ducted vs Air Vent 24 in. Direct Drive Whole House Fan (54301) direct_drive
- Insulated damper: QuietCool Classic Advanced Whole House Fan (QC CL-4700 RF) true vs Air Vent 24 in. Direct Drive Whole House Fan (54301) false
- Remote or app control: QuietCool Classic Advanced Whole House Fan (QC CL-4700 RF) true vs Air Vent 24 in. Direct Drive Whole House Fan (54301) false