The objective of the present invention is to provide a tubular heat exchanger capable of improving heat exchange efficiency and preventing deformation and damage thereof even in a high water-pressure environment. To this end, the present invention includes an outer jacket through which a heat medium is introduced and discharged; a combustion chamber coupled to the inside of the outer jacket so that a heat medium passage is formed between the combustion chamber and the outer jacket, and configured to perform combustion of a burner; a plurality of tubes formed in a flat shape for allowing combustion gas, which is generated in the combustion chamber, to flow along the inside of the combustion chamber and exchange heat with the heat medium; and a turbulator coupled to the inside of the tubes so as to induce generation of turbulence in a flow of the combustion gas.

A water heater system includes a primary heat exchanger including a tank and at least one flue, and a secondary heat exchanger including a core and a flue gas flow path. The water heater is operable in a heating mode in which a combustor produces hot flue gas and a water pump flows water through the core of the secondary heat exchanger and into the tank, and in a non-heating mode in which the combustor and the water pump are inoperative. The flue gas flows from the combustor through the at least one flue to heat the water in the tank and then through the flue gas flow path to heat water in the core before being exhausted.

The present invention relates to induction heating devices and systems. More particularly, the present invention relates to induction heating systems that may be used with, or include, radiators. A heating system described herein includes a radiator and an induction heating device attachable to the radiator, the induction heating device configured to heat at least a portion of the radiator via induction.

The present invention relates to induction heating devices and systems. More particularly, the present invention relates to induction heating systems that may be used with, or include, radiators. A heating system described herein includes a radiator and an induction heating device attachable to the radiator, the induction heating device configured to heat at least a portion of the radiator via induction.

An apparatus includes an evaporator-expansion module configured to (A) provide electric energy to a building structure, and (B) cooperate with an air-handler module configured to provide thermal energy to a building structure. The evaporator-expansion module includes an evaporator assembly including a heated fluid conduit, a refrigerant conduit, and a thermal buffer. The heated fluid conduit is configured to convey a heated fluid. The refrigerant conduit is configured to convey an evaporator refrigerant. The thermal buffer is configured to be positioned relative to the heated fluid conduit and the refrigerant conduit. This is done in such a way that the thermal buffer transfers thermal energy from the heated fluid that is positioned in the heated fluid conduit to the evaporator refrigerant that is positioned in the refrigerant conduit.

A combined hot water and air heating and conditioning system including a first heat exchanger, a heat pump, a chilling tower loop, a burner and a second heat exchanger to provide hot water, air heating and air cooling. The system provides hot water, air heating and cooling all in one single unit. The system utilizes a heat pump to remove heat from ambient air and transfer the rejected heat into a hot water system, thereby using waste heat to heat the hot water system. The system utilizes a heat exchanger not only for the purpose of transferring heat from a heating source to a fluid in the heat exchanger but also for the purpose of dissipating heat from the fluid in the heat exchanger to the surroundings of the heat exchanger, thereby allowing a heat pump to act both as an air heating and conditioning device.

A heat exchanger comprising a heat exchange unit in which heat is exchanged between combustion gas caused by a burner for combusting a mixture and first/second heating mediums, and heating medium flow channels through which the first/second heating mediums flow and a combustion gas flow channel through which the combustion gas flows are alternately formed adjacent to each other in spaces between a plurality of plates and a combustion gas discharge unit through which the combustion gas having passed through the heat exchange unit is discharged is provided.

Disclosed is a water supply system that conditionally fills with heated water. The water supply system has a water tank configured to store and supply heated water, a heater configured to heat water in the water tank, and a sensor configured to sense a temperature of the water in the water tank. In accordance with an embodiment of the disclosure, the water supply system has a water supply unit configured to selectively supply heated water or unheated water to the water tank based on the temperature that has been sensed. In some implementations, this is performed to reduce use of the heated water, which may result in energy savings.

Disclosed is a water supply system that conditionally fills with heated water. The water supply system has a water tank configured to store and supply heated water, a heater configured to heat water in the water tank, and a sensor configured to sense a temperature of the water in the water tank. In accordance with an embodiment of the disclosure, the water supply system has a water supply unit configured to selectively supply heated water or unheated water to the water tank based on the temperature that has been sensed. In some implementations, this is performed to reduce use of the heated water, which may result in energy savings.

A heating device, including at least one heating unit, which is configured to heat at least one fluid; at least one fluid supply line, which is provided for supplying the fluid to the heating unit for heating; at least one fluid discharge line, which is provided for discharging the fluid from the heating unit after the heating; and a control and/or regulating unit, which is configured to operate the heating unit in a pulsed manner, in at least one operating state, in order to set a particular temperature. The heating device includes a valve unit, which is configured to mix the fluid in the fluid discharge line with fluid from the fluid supply line, upstream from an outlet.