A vehicle heating/cooling system for a vehicle comprising: an internal combustion engine coupled to a closed engine coolant circuit to recirculate engine coolant therethrough; a refrigerant compressor coupled to a closed refrigerant circuit to recirculate refrigerant therethrough, wherein the refrigerant compressor is coupled to the internal combustion engine to be driven thereby; a closed thermally regulated fluid circuit to recirculate thermally regulated fluid therethrough; and a consolidated heating/cooling core coupled to the closed engine coolant circuit, to the closed refrigerant circuit and to the closed thermally regulated fluid circuit to conduct heat energy from the engine coolant into the thermally regulated fluid and to conduct heat energy from the thermally regulated fluid into the refrigerant, wherein the consolidated heating/cooling core defines a first closed path for conducting the engine coolant therethrough, wherein the consolidated heating/cooling core defines a second closed path for conducting the refrigerant therethrough, and wherein the consolidated heating/cooling core defines a third closed path for conducting the thermally regulated fluid therethrough, wherein the first closed path, the second closed path and the third closed path are defined by a plurality of cylinders (200, 206, 212), characterized in that the plurality of cylinders (200, 206, 212) comprises a first cylinder, a second cylinder, and a third cylinder, and further wherein each cylinder of the plurality of cylinders (200, 206, 212) has an inner surface and an outer surface, and further wherein the first cylinder is surrounded by the second cylinder which is surrounded by the third cylinder, wherein the first closed path is defined by an inner surface of the first cylinder, and further wherein the second closed path is defined by a space between the outer surface of the second cylinder and the inner surface of the third cylinder, and further wherein the third closed path is defined by the space between the outer surface of the first cylinder and the inner surface of the second cylinder. an internal combustion engine coupled to a closed engine coolant circuit to recirculate engine coolant therethrough; a refrigerant compressor coupled to a closed refrigerant circuit to recirculate refrigerant therethrough, wherein the refrigerant compressor is coupled to the internal combustion engine to be driven thereby; a closed thermally regulated fluid circuit to recirculate thermally regulated fluid therethrough; and a consolidated heating/cooling core coupled to the closed engine coolant circuit, to the closed refrigerant circuit and to the closed thermally regulated fluid circuit to conduct heat energy from the engine coolant into the thermally regulated fluid and to conduct heat energy from the thermally regulated fluid into the refrigerant, wherein the consolidated heating/cooling core defines a first closed path for conducting the engine coolant therethrough, wherein the consolidated heating/cooling core defines a second closed path for conducting the refrigerant therethrough, and wherein the consolidated heating/cooling core defines a third closed path for conducting the thermally regulated fluid therethrough, wherein the first closed path, the second closed path and the third closed path are defined by a plurality of cylinders (200, 206, 212), characterized in that the plurality of cylinders (200, 206, 212) comprises a first cylinder, a second cylinder, and a third cylinder, and further wherein each cylinder of the plurality of cylinders (200, 206, 212) has an inner surface and an outer surface, and further wherein the first cylinder is surrounded by the second cylinder which is surrounded by the third cylinder, wherein the first closed path is defined by an inner surface of the first cylinder, and further wherein the second closed path is defined by a space between the outer surface of the second cylinder and the inner surface of the third cylinder, and further wherein the third closed path is defined by the space between the outer surface of the first cylinder and the inner surface of the second cylinder.