QuietCool
QuietCool Classic Advanced Whole House Fan (QC CL-4700 RF)
$1109
Best Whole House Fans · head-to-head
QuietCool Classic Advanced Whole House Fan (QC CL-4700 RF) vs AirScape 1.7 (1.7 WHF-XR)
A sourced, side-by-side comparison. AirScape 1.7 (1.7 WHF-XR) is cheaper at $996. Every spec and price links to its source.
AirScape
AirScape 1.7 (1.7 WHF-XR)
$996Cheaper
Which is better: the QuietCool Classic Advanced Whole House Fan (QC CL-4700 RF) or AirScape 1.7 (1.7 WHF-XR)?
On the specs we track, they're closely matched. The AirScape 1.7 (1.7 WHF-XR) is the cheaper at $996.
See QuietCool Classic Advanced Whole House Fan (QC CL-4700 RF) on Amazon Check AirScape 1.7 (1.7 WHF-XR) price
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Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | QuietCool Classic Advanced Whole House Fan (QC CL-4700 RF) | AirScape 1.7 (1.7 WHF-XR) |
|---|---|---|
| US price | $1109 | $996 |
| Brand | QuietCool | AirScape |
| Released | — | — |
| Airflow (CFM) | 4,415 / 3,402 CFM (high/low) | 1,712 / 1,000 CFM (high/low) |
| Coverage (sq ft) | up to 2,208 sq ft | up to 1,500 sq ft |
| Speed settings | 2 | 2 |
| Drive type | ducted | direct_drive |
| Insulated damper | Yes | Yes |
| Remote or app control | Yes | No |
| Sound level note | ~54 dBA on high; acoustical duct + R5 damper box reduce noise/vibration | 55 dBA high / 44 dBA low, measured at 1 meter |
| Motor warranty years | 10 | 3 |
Sources — QuietCool Classic Advanced Whole House Fan (QC CL-4700 RF): lowes.com (verified 2026-08-16). AirScape 1.7 (1.7 WHF-XR): airscapefans.com (verified 2026-08-16).
What's the difference between the QuietCool Classic Advanced Whole House Fan (QC CL-4700 RF) and AirScape 1.7 (1.7 WHF-XR)?
Where the two actually differ on the specs we track (6 of 8). Matching specs are omitted.
- Airflow (CFM): QuietCool Classic Advanced Whole House Fan (QC CL-4700 RF) 4,415 / 3,402 CFM (high/low) vs AirScape 1.7 (1.7 WHF-XR) 1,712 / 1,000 CFM (high/low)
- Coverage (sq ft): QuietCool Classic Advanced Whole House Fan (QC CL-4700 RF) up to 2,208 sq ft vs AirScape 1.7 (1.7 WHF-XR) up to 1,500 sq ft
- Drive type: QuietCool Classic Advanced Whole House Fan (QC CL-4700 RF) ducted vs AirScape 1.7 (1.7 WHF-XR) direct_drive
- Remote or app control: QuietCool Classic Advanced Whole House Fan (QC CL-4700 RF) true vs AirScape 1.7 (1.7 WHF-XR) false
- 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 AirScape 1.7 (1.7 WHF-XR) 55 dBA high / 44 dBA low, measured at 1 meter
- Motor warranty years: QuietCool Classic Advanced Whole House Fan (QC CL-4700 RF) 10 vs AirScape 1.7 (1.7 WHF-XR) 3