A heat recovery apparatus configured to recover residual heat of a terminal that is connected to the heat recovery apparatus and utilizes heat, the heat recovery apparatus comprising: - a terminal circuit to which the terminal is connected and configured to supply heat to the terminal by allowing terminal fluid to circulate in the terminal circuit; - a recovery circuit in which recovery fluid circulates and configured to recover residual heat of the terminal ; - a heat source circuit in which refrigerant circulates and configured to generate heat by using heat recovered in the recovery circuit; - a heat storage circuit in which heat storage fluid circulates and configured to reject the heat generated in the heat source circuit to a heat storage material ; and - a heat storage tank that houses the heat storage material ; - a utilization circuit in which a utilization heat exchanger , a terminal heat exchanger , and a utilization pump are connected by a utilization pipe and in which utilization fluid circulates, - the utilization heat exchanger being configured to cause the utilization fluid to receive heat from the heat storage material , - the terminal heat exchanger being configured to cause the utilization fluid and the terminal fluid to exchange heat with each other, - the utilization pump being configured to cause the utilization fluid to circulate, - the heat storage material including at least a latent heat storage material or a high-polymer heat storage material, the recovery circuit being formed by including the utilization pump , a heat receiving heat exchanger for recovery configured to cause the recovery fluid to reject heat to the refrigerant, the terminal heat exchanger , - a recovery pipe that connects a point between the utilization heat exchanger and the utilization pump and a point between the utilization heat exchanger and the terminal heat exchanger , and a part of the utilization pipe . - a terminal circuit to which the terminal is connected and configured to supply heat to the terminal by allowing terminal fluid to circulate in the terminal circuit; - a recovery circuit in which recovery fluid circulates and configured to recover residual heat of the terminal ; - a heat source circuit in which refrigerant circulates and configured to generate heat by using heat recovered in the recovery circuit; - a heat storage circuit in which heat storage fluid circulates and configured to reject the heat generated in the heat source circuit to a heat storage material ; and - a heat storage tank that houses the heat storage material ; - a utilization circuit in which a utilization heat exchanger , a terminal heat exchanger , and a utilization pump are connected by a utilization pipe and in which utilization fluid circulates, - the utilization heat exchanger being configured to cause the utilization fluid to receive heat from the heat storage material , - the terminal heat exchanger being configured to cause the utilization fluid and the terminal fluid to exchange heat with each other, - the utilization pump being configured to cause the utilization fluid to circulate, - the heat storage material including at least a latent heat storage material or a high-polymer heat storage material, the recovery circuit being formed by including the utilization pump , a heat receiving heat exchanger for recovery configured to cause the recovery fluid to reject heat to the refrigerant, the terminal heat exchanger , the recovery circuit being formed by including the utilization pump , a heat receiving heat exchanger for recovery configured to cause the recovery fluid to reject heat to the refrigerant, the terminal heat exchanger , - a recovery pipe that connects a point between the utilization heat exchanger and the utilization pump and a point between the utilization heat exchanger and the terminal heat exchanger , and a part of the utilization pipe . <EOS>