Humidifiers – What is the difference between a Bypass Humidifier and a Fan Powered Humidifier?
Bypass humidifiers use the blower from your HVAC unit to move air across an evaporative pad on the humidifier and require additional round ductwork to install. Fan Powered humidifiers use a fan built into the humidifier to move air across the evaporative pad in the humidifier. Both styles of humidifiers are effective at keeping your home at a comfortable humidity level. Additionally, several manufacturers offer residential steam humidifiers.