The BMPlus Zone Control System allows you to easily upgrade an inefficient single zone HVAC system, into a Multi-zone, Energy savings, Comfort producing, HVAC system. The Superior Design, Intuitive Firmware, Simple Setup Options, Easy to Understand wiring and Backwards Compatibility, makes the BMPlus Zoning system the Contractors dream. Combined with EWC Motorized Dampers and any off-the-shelf Thermostats, EWC Controls sets another high standard in the residential & light commercial Forced Air Zoning Industry.