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AirLoc Damper Doors Opened, Gravity Damper Doors Opened
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VentCool Summit Series Whole House Fans

Summit Series Whole House Fans / Attic Fans offer free cooling by replacing hot indoor air with cool outdoor air.

Summit Series Whole House Fans are energy efficient, quietly performing residential cooling systems. Free cooling mode uses up to 90% less energy than air conditioning mode. A Summit series attic fan or whole house fan provides up to 30+ air changes per hour depending on fan selection and size of house. A precooled house greatly reduces air conditioning use during the day.

Summit series fans feature a highly efficient Electronically Commutated Motor (ECM) motors that operates at an optimally low cfm/watt draw consuming up to 90% less energy than traditional air conditioning. Summit models also feature an exclusive AirLoc Gravity Damper, a precise sealing system component designed for a secure precise seal to isolate the attic from the living space when operation for whole house fan is not desired. There are three Summit series house fans to meet any need.

Summit series whole house fans are rated and tested to Home Ventilation Institute Standard HVI-916 and can be used to comply with 2016 Title 24 Part 6. These house fans are also eligible for the Home Energy Renovation Opportunity (HERO) financing program.

What is the difference between a whole house fan vs attic fan? Attic fans help prevent the transfer of heat from a hot attic to the living space below. An attic fan is installed in the attic and blows hot air from the attic out through a roof-level vent. Using an attic fan can reduce the temperature in the attic by up to 50 degrees and reduce the temperature by as much as 10 degrees in the living space below the attic.

A whole house fan is installed in the ceiling, usually in a central location. The fan draws in cooler evening air through open windows and pulls warm air from the home’s living space, blowing it into the attic. Whole house fans can provide 30 to 60 air changes per hour depending on the home’s floor plan, the climate, and fan size. This results in enough air to cool a home in approximately one hour. Once the sun rises and outdoor temperatures increase, the fan is shut off and the windows are closed to preserve the cooler air until the evening.

Check our Tahoe Series and Vista Series fans.

Summit series logo

Specifications

Model Fan
Airflow
CFM
HVI-916 std.
Title 24 CFM
CFM/Watt
High
Efficiency
Watt/CFM
Sound
Level
(dBA)
Speed Voltage Attenuated
Acoustical
Flex Duct
Rough
Opening
(inches)
Grille
Dimensional
(Inches)
Damper
Blade
R-Value
Attic
Venting*
(Sq. Ft.)
Open
Window^
(Sq. Ft.)
Low High
VentCool-2.4 3480 900 3,131 325 0.100 59 10 120v 20"x7ft 14.5x22.5 16.5x24.5 R-5 6.3 12.5
VentCool-3.4 4230 225 3,342 295 0.090 52 10 120v 20"x7ft 22.5x26.5 24.5x28.5 R-5 6.7 13.4
VentCool-4.9 6048 916 5,202 850 0.160 60 10 120v 20"x7ft 22.5x26.5 24.5x28.5 R-5 10.4 20.8

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