Rather than needing to be hardwired, the GAF Master Flow EZ Cool Plug-in Power Attic Vent plugs into a 110-volt electrical outlet. When installed as part of a properly balanced ventilation system, the vent delivers up to 1,050 cubic feet per minute of airflow and ventilates up to 2,000 square feet of attic space. Users can regulate attic temperature with an adjustable thermostat or via smart devices. The product retails for around $160. gaf.com

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