| 摘要 |
PROBLEM TO BE SOLVED: To provide a heating system capable of further reducing cost required for a heating operation in light of selling of power generated by a photovoltaic power generator.SOLUTION: A heat pump power selling index value calculation unit 183 calculates a heat pump power index value that represents power consumption for obtaining a predetermined thermal dose by performing a heating operation of an underfloor heating machine 200 in a daytime zone by heating using a heat pump 51, and calculates a heat pump power selling index value that represents a profit when the power corresponding to the heat pump power index value is sold. A combustion/heating cost index value calculation unit 184 calculates a combustion/heating cost index value that represents a fuel cost for obtaining the predetermined thermal dose by performing the heating operation of the underfloor heating machine 200 by heating using a combustion heat source machine 75. A heating control unit 185 controls the heating operation of the underfloor heating machine 200 in the daytime zone on a heating execution day to be performed by heating using the combustion heat source machine 75 if the heat pump power selling index value exceeds the combustion/heating cost index value. |
