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 Cool Attic CX24DDWT Direct Drive 2-Speed Whole House Fan
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.
No photo yet
Cool Attic
Cool Attic CX24DDWT Direct Drive 2-Speed Whole House Fan
—
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) | Cool Attic CX24DDWT Direct Drive 2-Speed Whole House Fan |
|---|---|---|
| US price | $1109 | — |
| Brand | QuietCool | Cool Attic |
| Released | — | — |
| Airflow (CFM) | 4,415 / 3,402 CFM (high/low) | 4,600 / 3,200 CFM (high/low) |
| Coverage (sq ft) | up to 2,208 sq ft | 1,200-1,800 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). Cool Attic CX24DDWT Direct Drive 2-Speed Whole House Fan: amazon.com (verified 2026-08-16).
What's the difference between the QuietCool Classic Advanced Whole House Fan (QC CL-4700 RF) and Cool Attic CX24DDWT Direct Drive 2-Speed Whole House Fan?
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 Cool Attic CX24DDWT Direct Drive 2-Speed Whole House Fan 4,600 / 3,200 CFM (high/low)
- Coverage (sq ft): QuietCool Classic Advanced Whole House Fan (QC CL-4700 RF) up to 2,208 sq ft vs Cool Attic CX24DDWT Direct Drive 2-Speed Whole House Fan 1,200-1,800 sq ft
- Drive type: QuietCool Classic Advanced Whole House Fan (QC CL-4700 RF) ducted vs Cool Attic CX24DDWT Direct Drive 2-Speed Whole House Fan direct_drive
- Insulated damper: QuietCool Classic Advanced Whole House Fan (QC CL-4700 RF) true vs Cool Attic CX24DDWT Direct Drive 2-Speed Whole House Fan false
- Remote or app control: QuietCool Classic Advanced Whole House Fan (QC CL-4700 RF) true vs Cool Attic CX24DDWT Direct Drive 2-Speed Whole House Fan false