AirScape Sierra 3400
A premium ducted fan for a typical home in a cold or mixed climate, where the motorized R13 doors earn their cost.
HVACQuick $2,049$2,049
3.2/5
A premium ducted fan for a typical home in a cold or mixed climate, where the motorized R13 doors earn their cost.
- 3,307 CFMAirflow
- 312 WPower
- 60 dBANoise
- R-13 insulatedDamper
Check price at HVACQuick$1,919
Price checked November 2, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- Motorized R13 Air-Lock doors seal the ceiling opening in winter
- Ten speeds; the low ones move a lot of air on very little power
- Long ducted run keeps fan noise out of the living space
- Digital wall controller with 12-hour timer included
Cons
- 3-year warranty, short for the price
- Among the most expensive whole house fans
- Sold mainly through AirScape and HVACQuick, not big-box stores
The AirScape Sierra family
Every AirScape Sierra model we rank, smallest first. Ratings compare each against its own size.
| Model | Airflow | Rating | Price |
|---|---|---|---|
| AirScape Sierra 3200 (this one) | 3,307 CFM | 3.2/5 | $1,919 |
| AirScape Sierra 3400 | 3,440 CFM | 3.3/5 | $2,049 |
| AirScape Sierra 5300 | 5,527 CFM | 2.7/5 | $2,289 |
How it scores
The rating comes from 5 measured or published factors, each scored 0-100 against fixed reference points for its size. How we rank explains each one.
Specifications
| Model number | 3200 WHF (Sierra) |
|---|---|
| Airflow | |
| Airflow, high speed | 3,307 CFM |
| Power, high speed | 312 W |
| Efficiency | 10.6 CFM/W |
| Speeds | 10 |
| Noise | 60 dBA |
| Install | |
| Mount | Ducted |
| Damper | R-13 insulated |
| Ceiling opening | 14.5 x 22.5 in |
| Attic vent area needed | 4.3 sq ft |
| Voltage | 120 V |
| Remote or wall control | Yes |
| Warranty | |
| Warranty | 3 years |
Alternatives in this size
AirScape Ventura 3400
A ten-speed ducted fan for a typical home in a mild climate; the uninsulated door makes it a poor fit where winters are cold.
HVACQuick $1,559$1,559
AirScape Ventura 3200
A ten-speed ducted fan for a typical home in a mild climate; the uninsulated door makes it a poor fit where winters are cold.
HVACQuick $1,459$1,459
Compare
Compare the AirScape Sierra 3200 with any other whole house fan →
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