Products / Maxx Air 4000 Series Roof Mount Power Attic Ventilators

An electric roof-mounted power attic ventilator from Ventamatic's Maxx Air line, rated at 1,600 cfm for attic spaces up to 2,400 sq. ft., with a pre- wired thermostat adjustable from 50 to 120 F, a galvanized steel or aluminum dome, a mesh screen against pests and six anchor points for wind stability. It uses a heavy-duty PSC motor, ships factory assembled for roofs up to 8/12 pitch, needs 760 sq. in. of intake net free area and is described as UL Listed. The listing title calls it a steel ventilator while its copy describes a low-profile aluminum dome and offers both materials. Maxx Air gives it a 5-year limited warranty.