The High Efficiency powered attic ventilator comes with a ECM - Electronically Commutated Motor with an on-board computer to monitor and adjust to the temperature and humidity in the attic. The variable speed motor provides a quiet start up and reduces wear and tear on the motor while minimizing electricity consumption. On average, The HE15 consumes about $20 electricity costs annually; which is about $60 less per year compared to traditional power fan running 4 hours a day at average electricity costs. This is due to the unique motor and on-board computer that monitors and adjusts to the conditions in the attic. It features a low-profile dome, the power fan is unobtrusive when installed on the back side of your roof.

Features

Item Weight	16.10
Airflow (CFM)	1500
Color Family	Gray
Intake/Exhaust	Exhaust
Voltage (volts)	120
Color/Finish Family	Weatherwood
Power Type	Electric Powered
Returnable	180-Day
Ventilation Type	Roof
Color/Finish	Weatherwood
Material	Galvanized Steel
Horsepower (hp)	0.0198
Voltage (volts)2	120
Amperage (amps)	2.8
Wattage (watts)	220
Recommended Sq. Ft.	2100
Mounting Position	Roof Mount
Product Weight (lb.)	14.7
Features	Built-in Humidistat,Built-in Thermostat
Product Width (in.)	24.12
Product Height (in.)	8.22
Rough Opening Width (In.)	14.5
Coverage Area (Sq.Ft)	2100
Product Depth (in.)	24.07
Net-Free Area (Sq. In.)	2100
Rough Opening Height (In.)	14.5
Cut-Out Diameter (in.)	14.5
Manufacturer Warranty	Limited Lifetime Warranty / 5 year Replacement Plus Protection