Advanced Integrated HVAC Systems Improve energy efficiency, comfort and air quality in homes and buildings while reducing space requirements and costs. Nu-Air’s research and development pipeline includes several more highly competitive AIMS products nearing completion. Producing the most effective and efficient HVAC equipment requires large and ongoing investments in research and development, as well as in understanding the needs of builders, contractors and homeowners. It is also important to note that Nu-Air utilizes the most advanced fabrication equipment available to make its units. ENERGY STAR® QUALIFIED HRVs Industry-leading quality and warranty!