Development and production of the company's HVAC products are mainly used in household energy-sharing system, BAN measurement, shared by families, is characterized by energy-saving heating, transformation to facilitate easy maintenance and so on. "HL-891 wireless heating controller" using a new calculation method to provide users with more accurate "hot time", when sharing a more reasonable user fees to ensure the fairness and rationality of heating. Multi-pay, less pay less. Management through computer remote control and management software system can stay at home full understanding of the quality of the user and the user of heating hot conditions.