Water heater receiving humidified air

A water heater comprising:

• a heating part including a burner configured to cause a combustion reaction from air and a fuel, and configured to generate heating water by using heat generated through the combustion reaction;
• and
• a humidification part configured to generate steam by steaming water by using a combustion gas generated through the combustion reaction and discharged from the heating part, and to provide the steam, together with the air, to the burner, and
• wherein the humidification part includes:
• a plurality of wet channels configured to provide a space, in which the water is ejected, the ejected water is steamed, and the steam is generated, and through which the air passes, and
• a nozzle configured to eject the water to the plurality of wet channels and disposed on an upper side of the plurality of wet channels,
• wherein each of the wet channels includes:
• a main wet channel;
• a first passage guide wet-channel configured to guide the air and the steam discharged from the main wet channel to the burner;
• and
• a second passage guide wet-channel configured to guide the air supplied from an outside of the humidification part to the main wet channel,
• wherein the plurality of first passage guide wet-channels are spaced apart from each other in a first direction and a second direction that intersect each other,
• wherein the nozzle is configured to eject the water in a direction different from a flow direction of the air such that the water and the air face each other,
• wherein an outlet of the humidification part, from which the air and the steam, which are to be provided to the burner, is formed to face a lower side of the humidification part, and
• wherein the water heater further comprises:
• a burner air supply pipeline connecting the outlet of the humidification part and the burner;
• and
• a siphon part connected to a lower side of the burner air supply pipeline on a downstream side of the outlet of the humidification part with respect to a flow direction of the air and the steam, while having a “U”-shaped part such that the water, which is collected, is discharged due to a siphon phenomenon when a volume of the collected water becomes a specific volume or more while the water that flows down from the burner air supply pipeline is collected to define a trap.