Best Whole House Fans · head-to-head

Tamarack HV1000 Whole House Fan vs Master Flow WHFS24M Direct Drive Whole House Fan

A sourced, side-by-side comparison. Master Flow WHFS24M Direct Drive Whole House Fan is cheaper at $379.99. Every spec and price links to its source.

Which is better: the Tamarack HV1000 Whole House Fan or Master Flow WHFS24M Direct Drive Whole House Fan?

On the specs we track, they're closely matched. The Master Flow WHFS24M Direct Drive Whole House Fan is the cheaper at $379.99.

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Full spec sheet

marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.

Spec Tamarack HV1000 Whole House Fan Master Flow WHFS24M Direct Drive Whole House Fan
US price $709 $379.99
BrandTamarackMaster Flow
Released
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

Sources — Tamarack HV1000 Whole House Fan: tamtech.com (verified 2026-08-16). Master Flow WHFS24M Direct Drive Whole House Fan: thelumberyard.com (verified 2026-08-16).

What's the difference between the Tamarack HV1000 Whole House Fan and Master Flow WHFS24M Direct Drive Whole House Fan?

Where the two actually differ on the specs we track (3 of 8). Matching specs are omitted.

  • 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 true vs Master Flow WHFS24M Direct Drive Whole House Fan false

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