A system for heating a first fluid flow from a first temperature to a second temperature, the system including a hot water supply line for receiving the first fluid flow at a first end and exhausting the first fluid flow at a second end; and a heating system including a heat engine, a thermal battery and a heat exchanger, wherein the thermal battery is configured to be replenished at a point of heat transfer by the heat engine and the hot water supply line is configured to receive heat from the thermal battery via the heat exchanger to elevate the temperature of the first fluid flow from the first temperature to the second temperature.

A heat recovery system including a chamber having a cooling intake, an emissions intake, and a chamber exhaust, a heat recovery exchanger, a fluid circuit in communication with the heat recovery exchanger, a heat extraction exchanger, at least one controller operably linked to at least one operating component of the heat recovery system and at least one sensor configured to collect at least one environmental measurement and system related data from within the habitat. The system further includes a central thermal recovery unit in signal communication with the at least one controller and the at least one sensor. The central thermal recovery unit is configured for determining an operating instruction based on the at least one environmental measurement and system related data received from the at least one sensor and/or a third party database or interface, and transmitting the operating instruction to the at least one controller.

A refrigeration cycle apparatus simultaneously performs a cooling operation mode in which a refrigerant from a compressor is caused to flow to an indoor heat exchanger of an indoor unit having a cooling load, and a hot water supply operation mode in which a refrigerant from the compressor is caused to flow to a water heat exchanger of a hot water supply unit having a hot water supply demand. An operation control part switches the control mode of the simultaneous cooling and heating and hot water supply operation mode between a cooling-prioritized mode and a hot-water-supply-prioritized mode according to the relationship between the cooling load and the hot water supply load.

A thermal system includes a first facility fluid circuit including a facility fluid for circulating through a facility, a first facility heat exchanger, and a first facility supply inlet for providing the facility fluid to the facility. A second facility fluid circuit includes the facility fluid, a second facility fluid heat exchanger, and a second facility supply inlet. A ground-source heat pump includes the first facility heat exchanger and is associated with the first facility fluid circuit. An air-source heat pump includes the second facility heat exchanger and is associated with the second facility heat exchanger. A mutual supply duct connects the first and second facility fluid circuits such that the first facility fluid circuit is fluidly connected to the second facility supply inlet and the second facility fluid circuit is connected to the first facility supply inlet.

A thermal system for providing thermal conditioning to a facility includes a facility air circuit for circulating a facility air throughout the facility and a downhole fluid circuit for circulating a downhole fluid. The facility air circuit is thermally connected to a heat pump for exchanging heat with the facility air. The downhole fluid circuit includes the heat pump for exchanging heat with the downhole fluid, a main loop, including a borehole heat exchanger (BHE) for exchanging heat between the downhole fluid and a geological formation, and an exhaust loop including an exhaust heat exchanger coupled to an exhaust of the facility air circuit, wherein the exhaust loop is configured to circulate at least some of the downhole fluid through the exhaust heat exchanger to exchange heat between the downhole fluid and an exhaust flow of the facility air exhausted from the facility at the exhaust.