AirScape Sierra 5300
A premium ducted fan for a large home in a cold or mixed climate, where the motorized R13 doors earn their cost.
HVACQuick $2,289$2,289
The AirScape Sierra 5300 is the better whole house fan overall, rated 2.7 to 2.6. The AirScape Sierra 5300 leads on damper. The AirScape Ventura 5300 wins on value. The AirScape Ventura 5300 costs $490 less ($1,799 vs $2,289).
AirScape Ventura 5300
A ten-speed ducted fan for a large home in a mild climate; the uninsulated door makes it a poor fit where winters are cold.
HVACQuick $1,799$1,799
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 Sierra 5300 for damper (R-13 insulated damper vs uninsulated louver).
- Choose the AirScape Ventura 5300 for value ($327.27 per 1,000 CFM ($1,799, 5,497 CFM) vs $414.15 per 1,000 CFM ($2,289, 5,527 CFM)).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every over 5,000 CFM whole house fan; a clear win is highlighted. How we rank explains each one.
| Factor weight | AirScape Sierra 5300 | AirScape Ventura 5300 |
|---|---|---|
| Overall rating | 2.7/5 | 2.6/5 |
| Value 30% | 55 $414.15 per 1,000 CFM ($2,289, 5,527 CFM) | 72 $327.27 per 1,000 CFM ($1,799, 5,497 CFM) |
| Efficiency 20% | 15 5.9 CFM per watt | 18 6.1 CFM per watt |
| Noise 15% | 7 68 dBA at high speed | 7 68 dBA at high speed |
| Damper 10% | 87 R-13 insulated damper | 0 uninsulated louver |
| Warranty 25% | 22 3-year warranty on the motor | 22 3-year warranty on the motor |
Specifications
| AirScape Sierra 5300 | AirScape Ventura 5300 | |
|---|---|---|
| Airflow | ||
| Airflow, high speed | 5,527 CFM | 5,497 CFM |
| Power, high speed | 932 W | 902 W |
| Efficiency | 5.9 CFM/W | 6.1 CFM/W |
| Speeds | 10 | 10 |
| Noise | 68 dBA | 68 dBA |
| Install | ||
| Mount | Ducted | Ducted |
| Damper | R-13 insulated | Uninsulated |
| Ceiling opening | 22.5 x 26.5 in | 22.5 x 26.5 in |
| Attic vent area needed | 7.1 sq ft | 7.1 sq ft |
| Voltage | 120 V | 120 V |
| Remote or wall control | Yes | Yes |
| Warranty | ||
| Warranty | 3 years | 3 years |