Profile: Tempeff North America Ltd. is specialized in offering heat recovery equipment. Dual CoreT system employs two energy cores that deliver high, frost resistant energy recovery. Units can be applied wherever ventilation air is required. Due to the cycling nature of the heat exchangers, dust rarely builds up on the heat exchangers, eliminating the need for frequent cleaning. With the Dual CoreT design, frost will never build up in a typical application. By employing a cycling heat exchanger, frost does not have a chance to form, and one heat exchanger is always delivering conditioned air to the space.