The unique Vista 1.7 system is a sleek, all-in-one package that mounts directly on the ceiling joists. It features four super-quiet, two speed PSC motors and motorized, heavy duty, insulated, self-sealing damper doors. It moves 1,000 cfm on low speed and 1,712 cfm on high.
*Vista 1.7 not available in California
PowerSeal Motorized Damper models include Automatic Insulated Doors: insulated dampers powered by twin heavy-duty actuators that guarantee an airtight seal between the attic and living space.
Rated Air Flow (CFM) HVI-916 Standard:
1000 (Low Speed) | 1,712 (High Speed)
Wattage (High): 159
Efficiency @ High (CFM/Watts): 10.8
Sound Level (dba): 55
Speed Settings: 2
Voltage: 120v
Silencer Duct: n/a
Rough Opening (inches): 14.5 X 22.5
Grille Dimensions (inches): 16.5 X 24.5
Attic Venting* (sq. ft.): 3.4
Open Window** (sq. ft.): 6.8
*Adequate attic ventilation must be available for the fan to operate efficiently. Recommended 1 sq. ft. of net free ventilation per 500 CFM of fan airflow.
** Windows must be opened to safely and effectively operate the fan. Recommended 1 sq. ft. of open windows per 250 CFM of fan airflow.
The Vista 2.5 features a 20” fan with a 10 speed ECM motor to move from 723 cfm to 3,253 cfm.
PowerSeal Motorized Damper models include Automatic Insulated Doors: insulated dampers powered by twin heavy-duty actuators that guarantee an airtight seal between the attic and living space.
Air Flow (CFM) HVI-916 Standard:
723 (Low Speed) | 3,253 (High Speed)
Wattage (High): 321
Efficiency @ High (CFM/Watts): 10.1
Sound Level (dba): 60
Speed Settings: 10
Voltage: 120v
Silencer Duct: 20" x 7'
Rough Opening (inches): 14.5 X 22.5
Grille Dimensions (inches): 16.5 X 24.5
Attic Venting* (sq. ft.): 6.5
Open Window** (sq. ft.): 13.0
*Adequate attic ventilation must be available for the fan to operate efficiently. Recommended 1 sq. ft. of net free ventilation per 500 CFM of fan airflow.
** Windows must be opened to safely and effectively operate the fan. Recommended 1 sq. ft. of open windows per 250 CFM of fan airflow.
The Vista 3.5 utilizes a 24” fan with a 10 speed ECM motor to quietly and efficiently move from 723 cfm to 3,440 cfm.
PowerSeal Motorized Damper models include Automatic Insulated Doors: insulated dampers powered by twin heavy-duty actuators that guarantee an airtight seal between the attic and living space.
Air Flow (CFM) HVI-916 Standard:
723 (Low Speed) | 3,440 (High Speed)
Wattage (High): 298
Efficiency @ High (CFM/Watts): 11.5
Sound Level (dba): 52
Speed Settings: 10
Voltage: 120v
Silencer Duct: 20" x 7'
Rough Opening (inches): 22.5 x 26.5
Grille Dimensions (inches): 24.5 x 28.5
Attic Venting* (sq. ft.): 6.9
Open Window** (sq. ft.): 13.8
*Adequate attic ventilation must be available for the fan to operate efficiently. Recommended 1 sq. ft. of net free ventilation per 500 CFM of fan airflow.
** Windows must be opened to safely and effectively operate the fan. Recommended 1 sq. ft. of open windows per 250 CFM of fan airflow.
The Vista 5.0 utilizes a 24” fan with a 10 speed ECM motor to quietly and efficiently move from 1367 cfm to 5,350 cfm.
*Vista 5.0 not available in California
PowerSeal Motorized Damper models include Automatic Insulated Doors: insulated dampers powered by twin heavy-duty actuators that guarantee an airtight seal between the attic and living space.
Air Flow (CFM) HVI-916 Standard:
1367 (Low Speed) | 5,350 (High Speed)
Wattage (High): 825
Efficiency @ High (CFM/Watts): 6.5
Sound Level (dba): 61
Speed Settings: 10
Voltage: 120v
Silencer Duct: 20" x 7'
Rough Opening (inches): 22.5 x 26.5
Grille Dimensions (inches): 24.5 x 28.5
Attic Venting* (sq. ft.): 10.7
Open Window** (sq. ft.): 21.4
*Adequate attic ventilation must be available for the fan to operate efficiently. Recommended 1 sq. ft. of net free ventilation per 500 CFM of fan airflow.
** Windows must be opened to safely and effectively operate the fan. Recommended 1 sq. ft. of open windows per 250 CFM of fan airflow.