Hot water tank and heating system

The utility model relates to a hot water tank and a heating system, and belongs to the technical field of energy conservation. The hot water tank comprises a tank body and a heat dissipation device, the heat dissipation device is arranged in the tank body and used for heating water in the tank body, a water outlet is formed in the side wall of the tank body, and the forming position of the water outlet is higher than the lowest point, in the tank body, of the heat dissipation device. According to the utility model, the water outlet is arranged at the position higher than the lowest point of the radiating device in the tank body, so that the temperature of the output and utilized water is ensured to reach the required temperature, and the utilization value of the water in the water tank isimproved. 本实用新型涉及一种热水箱及供暖系统，属于节能技术领域。本实用新型提出的热水箱，包括箱体以及散热装置，散热装置布置在箱体内，用于对箱体内水进行加热，箱体的侧壁上开设有排水口，且排水口的开设位置高于散热装置在箱体内的最低点。本实用新型通过将排水口的位置设置在高于散热装置在箱体内的最低点来保证输出利用的水的水温达到所需温度，提高了水箱内水的利用价值。