# Tamarack HV1000 Whole House Fan vs Master Flow WHFS24M Direct Drive Whole House Fan: specs and price compared

A sourced, side-by-side comparison of the Tamarack HV1000 Whole House Fan (Tamarack) and Master Flow WHFS24M Direct Drive Whole House Fan (Master Flow) 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 | Tamarack HV1000 Whole House Fan | Master Flow WHFS24M Direct Drive Whole House Fan |
| --- | --- | --- |
| US price | $709 | $379.99 |
| Brand | Tamarack | Master Flow |
| Airflow (CFM) | 1,000 CFM | 4,500 CFM |
| Coverage (sq ft) | under 1,600 sq ft | up to 2,000 sq ft |
| Speed settings | 1 | — |
| Drive type | direct_drive | direct_drive |
| Insulated damper | Yes | No |
| Remote or app control | No | No |
| Sound level note | — | — |
| Motor warranty years | 3 | — |

## Key differences

- Airflow (CFM): Tamarack HV1000 Whole House Fan 1,000 CFM vs Master Flow WHFS24M Direct Drive Whole House Fan 4,500 CFM
- Coverage (sq ft): Tamarack HV1000 Whole House Fan under 1,600 sq ft vs Master Flow WHFS24M Direct Drive Whole House Fan up to 2,000 sq ft
- Insulated damper: Tamarack HV1000 Whole House Fan Yes vs Master Flow WHFS24M Direct Drive Whole House Fan No

## Sources

- Tamarack HV1000 Whole House Fan: https://www.tamtech.com/product/hv1000-whole-house-fan/ (tamtech.com, verified 2026-08-16)
- 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)

Canonical: https://frontdeskreview.com/gear/whole-house-fans/tamarack-hv1000-vs-master-flow-whfs24m/
Cite: Per The Front Desk Review, Tamarack HV1000 Whole House Fan ($709) vs Master Flow WHFS24M Direct Drive Whole House Fan ($379.99) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/whole-house-fans/tamarack-hv1000-vs-master-flow-whfs24m/
License: CC BY 4.0.