# QuietCool Classic Advanced Whole House Fan (QC CL-4700 RF) vs CentricAir 3.4: specs and price compared

A sourced, side-by-side comparison of the QuietCool Classic Advanced Whole House Fan (QC CL-4700 RF) (QuietCool) and CentricAir 3.4 (CentricAir) among whole house fans. QuietCool Classic Advanced Whole House Fan (QC CL-4700 RF) is the cheaper of the two at $1109.

## Side by side

| Spec | QuietCool Classic Advanced Whole House Fan (QC CL-4700 RF) | CentricAir 3.4 |
| --- | --- | --- |
| US price | $1109 | $1449 |
| Brand | QuietCool | CentricAir |
| 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 |

## Key differences

- 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

## 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)
- CentricAir 3.4: https://www.centricair.com/whole-house-fan-products-and-prices/centricair-3-4/ (centricair.com, verified 2026-08-16)

Canonical: https://frontdeskreview.com/gear/whole-house-fans/quietcool-cl-4700-vs-centricair-3-4/
Cite: Per The Front Desk Review, QuietCool Classic Advanced Whole House Fan (QC CL-4700 RF) ($1109) vs CentricAir 3.4 ($1449) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/whole-house-fans/quietcool-cl-4700-vs-centricair-3-4/
License: CC BY 4.0.