Lomanco® Standard Power Vents are designed for quiet operation and high volume air removal. Lomanco 2000 is a roof mount power vent. Lomanco® Power Vents are made of all aluminum construction. Other common features include a 5 year limited warranty, balanced fan blades for quiet operation, and an American made motor. Lomanco® Power Vents are easy to install and come equipped with an adjustable thermostat that features a “push to test” button that allows homeowners to make sure the unit is operating properly. The Lomancool™ 2000TH comes equipped with an adjustable thermostat/humidistat combo control to accommodate individual attic humidity levels.