The Global Leader in Residential Indoor Air Quality. Broan-NuTone leads the industry with forward-thinking residential ventilation and home automation solutions along with award winning customer service. Headquartered in Hartford, Wisconsin, Broan-NuTone employs over 2,500 people across all of our manufacturing plants and offices. A wide selection of products is offered by Broan that help meet the requirements of all three major green building programs: ENERGY STAR®; U.S. Green Building Council’s (USGBC) Leadership in Energy and Environmental Design (LEED) for Homes; and the National Association of Home Builder’s (NAHB) Model Green Home Building Guidelines.