Abstract: An air heating apparatus includes an expansion tank that stores water, a water heating device that receives heat from combustion gas generated by a combustion reaction and heats the water, a heating heat exchanger that receives the water heated by the water heating device and conducts heat exchange between air to be released for heating and the water, a fan that supplies the air to the heating heat exchanger, and a case in which the water heating device, the expansion tank, the heating heat exchanger, and the fan are disposed. The case includes an outer box, a first partition wall that is coupled to the outer box and that extends in a reference direction to divide the inside of the outer box into a first partition space and a second partition space, a second partition wall disposed in the first partition space, and a third partition wall.

Abstract: An air heating apparatus includes an expansion tank that stores water, a water heating device that receives heat from combustion gas generated by a combustion reaction and heats the water, a heating heat exchanger that receives the water heated by the water heating device and conducts heat exchange between air to be released for heating and the water, a fan that supplies the air to the heating heat exchanger, and a case in which the water heating device, the expansion tank, the heating heat exchanger, and the fan are disposed. The case includes an outer box, a first partition wall that is coupled to the outer box and that extends in a reference direction perpendicular to an up-down direction to divide the inside of the outer box into a first partition space and a second partition space, and an air guide.

Abstract: An air heating apparatus includes an expansion tank storing water, a water heating device that receives heat from combustion gas generated by a combustion reaction and heats the water, a heating heat exchanger that receives the water heated by the water heating device and conducts heat exchange between air to be released for heating and the water, a fan that supplies the air to the heating heat exchanger, a case in which the water heating device, the expansion tank, the heating heat exchanger, and the fan are disposed, and a panel assembly electrically connected with at least one of the expansion tank, the water heating device, the heating heat exchanger, or the fan. The panel assembly includes a panel device at least partially exposed outside the case, and a position of the panel device is fixed in a state in which the panel device is rotated relative to the case.

Abstract: An air heating apparatus includes an expansion tank that stores water, a water heating device that receives heat from combustion gas generated by a combustion reaction and heats the water, a heating heat exchanger that receives the water heated by the water heating device and conducts heat exchange between air to be released for heating and the water, a fan that supplies the air to the heating heat exchanger, a case in which the water heating device, the expansion tank, the heating heat exchanger, and the fan are disposed, a main passage that connects the expansion tank, the water heating device, and the heating heat exchanger, and an overpressure prevention passage that branches off from the main passage and has one end portion disposed on one side of the case.

Abstract: An air heating apparatus includes an expansion tank that stores water, a water heating device that receives heat from combustion gas generated by a combustion reaction and heats the water, a heating heat exchanger that receives the water heated by the water heating device and conducts heat exchange between air to be released for heating and the water, a fan that supplies the air to the heating heat exchanger, a case in which the water heating device, the expansion tank, the heating heat exchanger, and the fan are disposed, and a water leak sensor that is disposed in the case and that senses moisture.

Abstract: A filter assembly structure and a water heater including the same are provided. The filter assembly structure includes a filter housing coupled to an inner surface of a base panel provided in a case of a water heater, and including a flow space formed together with the inner surface of the base panel and an entrance to communicate with the flow space, and a filter assembly detachably assembled with the filter housing and including an air filter to filter air introduced through an air inlet provided in the base panel. The filter assembly is provided in a slide structure and inserted into or separated from the filter housing through the entrance.

Abstract: The apparatus for supplying hot water comprises: at least one processor; a heat exchanger connected to the at least one processor, and configured to receive tap water through a tap water inflow pipe, heat the supplied tap water by means of heat exchange to thereby generate hot water, and discharge the generated hot water through a hot water supply pipe; a burner configured to directly or indirectly provide heat required to generate the hot water; a mixing valve connected to the at least one processor and installed on a mixing pipe connecting the tap water inflow pipe and the hot water supply pipe, and configured to mix the tap water with the hot water discharged from the heat exchanger and flowing through the hot water supply pipe; and a memory connected to the at least one processor and configured to store instructions.

Abstract: Disclosed is a cover fin including a front part and a rear part being perpendicular to a forward/rearward direction and spaced apart from each other in the forward/rearward direction, a connecting part connecting the front part and the rear part, a leg part extending from an upper end of the rear part toward an upper side when one direction being perpendicular to the forward/rearward direction is defined as an upward/downward direction, and a protrusion protruding from the leg part to a rear side.

Abstract: An air heating apparatus includes a burner configured to cause combustion reaction, a heat exchange part configured to receive heat from a combustion gas generated by the combustion reaction so as to heat water, a heating heat exchanger configured to receive the water heated by the heat exchange part so as to be heat-exchanged with air to be discharged for heating, a fan configured to blow the air to the heating heat exchanger, a condensed water receiver configured to collect and discharge condensed water generated in the heat exchange part, a case in which the burner, the heat exchange part, the heating heat exchanger, the fan, and the condensed water receiver are embedded, and a condensed water trap disposed outside the case and configured to receive the condensed water transferred from the condensed water receiver so as to provide a trap configured to block leakage of the combustion gas.

Abstract: The present invention relates to a smoke tube boiler including: a mix chamber which includes a mixing space in which combustion gas and air are mixed, a mix chamber body having a flat shape, and a flat plate-shaped burner disposed in a horizontal direction above a combustion chamber; and a heat exchanger which includes an outer shell forming an outer wall of a water tank into and from which a heat medium is introduced and discharged and which accommodates the heat medium, a plurality of tubes formed in a flat shape that are configured to allow combustion gas generated in the combustion chamber to flow therein and cause a heat exchange to occur between the combustion gas and the heat medium flowing outside the tubes, turbulators coupled to an inner side of the tube and configured to induce occurrence of a turbulent flow in the flow of the combustion gas, and multi-stage barriers disposed between the outer shell and the tube and configured to induce a heat medium flow direction to be alternately changed between

Abstract: A case for a water heater includes a case cover provided to accommodate the water heater in an inner space thereof, and a case frame configured to support the case cover in the inner space. The case cover includes a rear cover part including a plurality of holes passing through a plurality of pipes connected to the water heater, an upper cover part configured to cover an upper portion of the water heater and provided to be detached from the case frame, a side cover part configured to cover a side surface of the water heater and provided to be detached from the case frame, and a front cover part configured to cover a front surface of the water heater and provided to be detached from the side cover part.

Abstract: Provided is an air conditioning system. The air conditioning system includes a heat pump provided to heat or cool a circulating refrigerant, an air heating device provided to burn a fuel so as to heat circulating water so that air is heated by the heated water, and an intermediate heat exchanger provided to exchange heat between the refrigerant and the water.

Abstract: Provided is a dual venturi. The dual venturi includes a housing including a housing body opened in a reference direction so that a gas or air flows, an inner partition wall through which an inner space of the housing body is divided into a first conduit and a second conduit, and a gas providing part provided with a first gas conduit passing through the first conduit to allow the first conduit to communicate with the outside therein and a second gas conduit configured to allow the second conduit to communicate with the outside, an opening/closing unit disposed in the inner space to open and close the first gas conduit and the second conduit, and a driver connected to the opening/closing unit to provide driving force to the opening/closing unit.

Abstract: A heating system according to the present invention includes a heat pump provided to heat inflow air using a circulating refrigerant; an air heating device provided to heat air passing through the heat pump using water heated by burning a fuel, an external air temperature acquisition unit provided to acquire an external air temperature that is a temperature of external air, and a processor electrically connected to the heat pump, the air heating device, and the external air temperature acquisition unit. In a heating mode, when the external air temperature is greater than a lower limit and less than an upper limit of a balance band, which is a predetermined temperature range, the processor is configured to control the air heating device and the heat pump so that the air is heated by the air heating device and the heat pump.

Abstract: Disclosed are a flue pipe separation sensing apparatus and a boiler including the same. The flue pipe separation sensing apparatus of a boiler for sensing separation of an exhaust flue pipe that is fitted with and coupled to an exhaust adapter provided in an exhaust opening of a boiler body includes a sensing member located on an outer side of the exhaust flue pipe in a state, in which the exhaust flue pipe is coupled to the exhaust adapter, and that passes through the exhaust adapter by an elastic force and proceed into an interior of the exhaust adapter to sense the separation of the exhaust flue pipe when the exhaust flue pipe is separated from the exhaust adapter.

Abstract: A heat transfer fin according to an aspect of the present invention includes a fin main body having a plate shape, and a plurality of through-holes defined to pass through the fin main body and spaced apart from each other in a first direction that is a predetermined direction.