# QuietCool Classic Advanced Whole House Fan (QC CL-4700 RF) vs Triangle Engineering CC3623 Comfort Cooler 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 Triangle Engineering CC3623 Comfort Cooler Whole House Fan (Triangle Engineering) among whole house fans. Triangle Engineering CC3623 Comfort Cooler Whole House Fan is the cheaper of the two at $914.01.

## Side by side

| Spec | QuietCool Classic Advanced Whole House Fan (QC CL-4700 RF) | Triangle Engineering CC3623 Comfort Cooler Whole House Fan |
| --- | --- | --- |
| US price | $1109 | $914.01 |
| Brand | QuietCool | Triangle Engineering |
| Airflow (CFM) | 4,415 / 3,402 CFM (high/low) | — |
| Coverage (sq ft) | up to 2,208 sq ft | 1,500-2,500 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 | 1 |

## Key differences

- Coverage (sq ft): QuietCool Classic Advanced Whole House Fan (QC CL-4700 RF) up to 2,208 sq ft vs Triangle Engineering CC3623 Comfort Cooler Whole House Fan 1,500-2,500 sq ft
- Drive type: QuietCool Classic Advanced Whole House Fan (QC CL-4700 RF) ducted vs Triangle Engineering CC3623 Comfort Cooler Whole House Fan direct_drive
- Insulated damper: QuietCool Classic Advanced Whole House Fan (QC CL-4700 RF) Yes vs Triangle Engineering CC3623 Comfort Cooler Whole House Fan No
- Remote or app control: QuietCool Classic Advanced Whole House Fan (QC CL-4700 RF) Yes vs Triangle Engineering CC3623 Comfort Cooler Whole House Fan No
- Motor warranty years: QuietCool Classic Advanced Whole House Fan (QC CL-4700 RF) 10 vs Triangle Engineering CC3623 Comfort Cooler Whole House Fan 1

## 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)
- Triangle Engineering CC3623 Comfort Cooler Whole House Fan: https://hvacdirect.com/triangle-fans-36-whole-house-fan-2-speed-1-2-hp-115v-single-phase-open-drip-proof-motor-belt-drive.html (hvacdirect.com, verified 2026-08-16)

Canonical: https://frontdeskreview.com/gear/whole-house-fans/quietcool-cl-4700-vs-triangle-engineering-cc3623/
Cite: Per The Front Desk Review, QuietCool Classic Advanced Whole House Fan (QC CL-4700 RF) ($1109) vs Triangle Engineering CC3623 Comfort Cooler Whole House Fan ($914.01) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/whole-house-fans/quietcool-cl-4700-vs-triangle-engineering-cc3623/
License: CC BY 4.0.