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
The AirScape Ventura 3400 and the AirScape Sierra 3200 are evenly matched, rated 3.2 and 3.2. The AirScape Ventura 3400 leads on value and noise. The AirScape Sierra 3200 wins on damper. The AirScape Ventura 3400 costs $360 less ($1,559 vs $1,919).
AirScape Sierra 3200
A premium ducted fan for a typical home in a cold or mixed climate, where the motorized R13 doors earn their cost.
HVACQuick $1,919$1,919
Prices were last checked November 2, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Which should you buy?
- Choose the AirScape Ventura 3400 for value ($466.49 per 1,000 CFM ($1,559, 3,342 CFM) vs $580.28 per 1,000 CFM ($1,919, 3,307 CFM)) and noise (52 dBA at high speed vs 60 dBA at high speed).
- Choose the AirScape Sierra 3200 for damper (R-13 insulated damper vs uninsulated louver).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every 3,001 to 5,000 CFM whole house fan; a clear win is highlighted. How we rank explains each one.
| Factor weight | AirScape Ventura 3400 | AirScape Sierra 3200 |
|---|---|---|
| Overall rating | 3.2/5 | 3.2/5 |
| Value 30% | 47 $466.49 per 1,000 CFM ($1,559, 3,342 CFM) | 31 $580.28 per 1,000 CFM ($1,919, 3,307 CFM) |
| Efficiency 20% | 100 11.4 CFM per watt | 93 10.6 CFM per watt |
| Noise 15% | 60 52 dBA at high speed | 33 60 dBA at high speed |
| Damper 10% | 0 uninsulated louver | 87 R-13 insulated damper |
| Warranty 25% | 22 3-year warranty on the motor | 22 3-year warranty on the motor |
Specifications
| AirScape Ventura 3400 | AirScape Sierra 3200 | |
|---|---|---|
| Airflow | ||
| Airflow, high speed | 3,342 CFM | 3,307 CFM |
| Power, high speed | 292 W | 312 W |
| Efficiency | 11.4 CFM/W | 10.6 CFM/W |
| Speeds | 10 | 10 |
| Noise | 52 dBA | 60 dBA |
| Install | ||
| Mount | Ducted | Ducted |
| Damper | Uninsulated | R-13 insulated |
| Ceiling opening | 22.5 x 26.5 in | 14.5 x 22.5 in |
| Attic vent area needed | 4.6 sq ft | 4.3 sq ft |
| Voltage | 120 V | 120 V |
| Remote or wall control | Yes | Yes |
| Warranty | ||
| Warranty | 3 years | 3 years |