The Envirovent EVL-HR Loft PIV Mounted Positive Input Ventilation Unit with Heater is a high-quality ventilation system designed to improve air quality in homes. As a product from Envirovent, a trusted brand in the industry, this unit is specifically crafted to provide efficient ventilation while also heating the air to create a comfortable atmosphere. Perfect for mounting in lofts or other areas in need of improved air circulation, this unit is a reliable solution for maintaining a healthy and comfortable environment in any home.NEW UNUSED