Carlisle HVAC Products-Engineered Solutions for Maximum Efficiency As an industry leader, Carlisle HVAC Products does not simply supply superior products, but also solutions. Carlisle’s products are not only formulated to exceed all industry standards, but are engineered to ensure easy, quick and accurate installation. As a system solutions provider, Carlisle HVAC Products delivers rigorous training and unmatched field support to ensure that all its products achieve maximum efficiency for long-term performance.