With proper amount of ventilation and properly installed, there should be no affect on the attic insulation in your home.
QuietCool Stealth Pro X
The Stealth Pro line of QuietCool Advanced Whole House Fans was first introduced in 2014 and is an evolution of our Energy Saver Classic line. With energy consumption as low as 55 watts and a 15-year warranty, the QuietCool Stealth Pro Line offers ultra-high efficiency and peace of mind operation.
The Stealth Pro is the second line in our Pro series. These units are also only available for purchase through one of our authorized wholesalers which can only be purchased by a licensed contractor.