MULTI-HEAT-SOURCE HOT WATER UNIT, AND METHOD AND APPARATUS FOR CONTROLLING MULTI-HEAT-SOURCE HOT WATER UNIT

摘要

Provided are a control method and a control device for a water-heating unit equipped with a plurality of heat sources. The control method includes: acquiring heat required to heat water in the water-heating unit to a target temperature; acquiring respective costs for generating the heat from each of the plurality of heat sources; and acquiring a lowest value from the respective costs, and selecting a heat source corresponding to the lowest value to heat the water in the water-heating unit. Therefore, a suitable heat source is selected, according to respective operating costs for each of the plurality heat sources, for heating the water in the water-heating unit, thereby saving more operating costs for a user.