# QuietCool Classic Advanced Whole House Fan (QC CL-4700 RF) vs Cool Attic CX24DDWT Direct Drive 2-Speed Whole House Fan: specs and price compared

A sourced, side-by-side comparison of the QuietCool Classic Advanced Whole House Fan (QC CL-4700 RF) (QuietCool) and Cool Attic CX24DDWT Direct Drive 2-Speed Whole House Fan (Cool Attic) among whole house fans.

## Side by side

| Spec | QuietCool Classic Advanced Whole House Fan (QC CL-4700 RF) | Cool Attic CX24DDWT Direct Drive 2-Speed Whole House Fan |
| --- | --- | --- |
| US price | $1109 | not published |
| Brand | QuietCool | Cool Attic |
| 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 |

## Key differences

- 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) Yes vs Cool Attic CX24DDWT Direct Drive 2-Speed Whole House Fan No
- Remote or app control: QuietCool Classic Advanced Whole House Fan (QC CL-4700 RF) Yes vs Cool Attic CX24DDWT Direct Drive 2-Speed Whole House Fan No

## Sources

- QuietCool Classic Advanced Whole House Fan (QC CL-4700 RF): https://www.lowes.com/pd/QuietCool-QuietCool-QC-CL-4700-RF-Classic-Advanced-Whole-House-Fan-with-Wireless-Control-Up-to-4415-CFM-Two-Speed-Covers-up-to-2208-SQFT-10-Year-Warranty-Removable-Grille-R5-Insulated-Dampers-20ft-Power-Cord/5016126751 (lowes.com, verified 2026-08-16)
- Cool Attic CX24DDWT Direct Drive 2-Speed Whole House Fan: https://www.amazon.com/Cool-Attic-CX24DDWT-2-Speed-Shutter/dp/B001AH5BAQ (amazon.com, verified 2026-08-16)

Canonical: https://frontdeskreview.com/gear/whole-house-fans/quietcool-cl-4700-vs-cool-attic-cx24ddwt/
Cite: Per The Front Desk Review, QuietCool Classic Advanced Whole House Fan (QC CL-4700 RF) ($1109) vs Cool Attic CX24DDWT Direct Drive 2-Speed Whole House Fan (not published) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/whole-house-fans/quietcool-cl-4700-vs-cool-attic-cx24ddwt/
License: CC BY 4.0.