Sharonville Commercial Rooftop HVAC Systems Knochelmann Service Experts Heating & Air Conditioning in Sharonville has a variety of commercial rooftop HVAC products and services. For example, Lennox® packaged rooftop commercial HVAC systems are top the list of the most innovative products you can find today, including the new solar powered SunSource® System for Energence® rooftop HVAC systems. Bringing industry-leading technology and efficiency with expert installation and service means you receive dependable, sustainable systems built to provide outstanding comfort and indoor air quality (IAQ) in your commercial buildings. Additionally, three of our four rooftop systems – Energence, Strategos® and Landmark® - are certified by ENERGY STAR®, which will help reduce your energy expenses, translating to a lower total cost of ownership. Call 859-905-0834 to learn more.