# Master Flow WHFS24M Direct Drive Whole House Fan vs Triangle Engineering CC3623 Comfort Cooler Whole House Fan: specs and price compared

A sourced, side-by-side comparison of the Master Flow WHFS24M Direct Drive Whole House Fan (Master Flow) and Triangle Engineering CC3623 Comfort Cooler Whole House Fan (Triangle Engineering) among whole house fans. Master Flow WHFS24M Direct Drive Whole House Fan is the cheaper of the two at $379.99.

## Side by side

| Spec | Master Flow WHFS24M Direct Drive Whole House Fan | Triangle Engineering CC3623 Comfort Cooler Whole House Fan |
| --- | --- | --- |
| US price | $379.99 | $914.01 |
| Brand | Master Flow | Triangle Engineering |
| Airflow (CFM) | 4,500 CFM | — |
| Coverage (sq ft) | up to 2,000 sq ft | 1,500-2,500 sq ft |
| Speed settings | — | 2 |
| Drive type | direct_drive | direct_drive |
| Insulated damper | No | No |
| Remote or app control | No | No |
| Sound level note | — | — |
| Motor warranty years | — | 1 |

## Key differences

- Coverage (sq ft): Master Flow WHFS24M Direct Drive Whole House Fan up to 2,000 sq ft vs Triangle Engineering CC3623 Comfort Cooler Whole House Fan 1,500-2,500 sq ft

## Sources

- Master Flow WHFS24M Direct Drive Whole House Fan: https://www.thelumberyard.com/FAN-WHOLE-HOUSE-24IN-4500CFM-p/6928790.htm (thelumberyard.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/master-flow-whfs24m-vs-triangle-engineering-cc3623/
Cite: Per The Front Desk Review, Master Flow WHFS24M Direct Drive Whole House Fan ($379.99) vs Triangle Engineering CC3623 Comfort Cooler Whole House Fan ($914.01) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/whole-house-fans/master-flow-whfs24m-vs-triangle-engineering-cc3623/
License: CC BY 4.0.