An expansion tank control device and a water heater and expansion tank including the expansion tank control device. The device may include a water flow sensor arranged in a water inlet waterway of a water heater to detect water flow in the water inlet waterway. The device can further include a controller outputting a driving electric signal after receiving a first electric signal output by the water flow sensor, and a reset electric signal after receiving a second electric signal output by the water flow sensor. The expansion tank can include an electric driving part arranged on a shell of the expansion tank, and a push plate on a driving end of the part, a controlled end of the electric driving part driving the push plate to move toward the expansion tank after receiving the driving electric signal or away from the expansion tank after receiving the reset electric signal.

The disclosure includes a hot water circulation device, and a hot water device monitoring system including a circulation passage; a circulation pump circulating hot water in the circulation passage; a closed expansion tank in which a water chamber communicating with the circulation passage and an air chamber filled with a predetermined pressure in initial state are partitioned by a diaphragm; and a control unit controlling hot water circulation. The hot water circulation device includes an air chamber pressure sensor detecting pressure in the air chamber; a closing valve cutting off water chamber from the circulation passage; and an open valve opening to atmosphere from between closing valve and water chamber. The control unit closes closing valve and opens opening valve during hot water circulation, detects pressure in the air chamber by the air chamber pressure sensor, and issues a warning notification when the pressure is not within predetermined pressure range.

A hot water storage device having a vessel includes a first section formed from a moulded material and a second section formed from a moulded material. An open end of the first section is sealingly engaged with an opposing open end of the second section to form the vessel. The first and second sections each have a generally cylindrical body portion and a closed end, comprising a head portion. The vessel includes a water inlet aperture moulded into the first or second section and a water outlet aperture moulded into the first or second section and wherein the inlet and outlet apertures are located on the body portion proximal to a tangent line between the body portion and the head portion.

A heater with a recovery device for swelling water is provided. A water inlet pipe and a water outlet pipe are longitudinally provided on the heater. The recovery device is transversely disposed on the heater and connected with the water inlet pipe, such that the recovery device is coupled on to reduce the entire size. The recovery device is adapted to recycle and store the swelling hot water in the heater so as to provide an energy-saving effect and to stop water from dripping.

Exemplary embodiments are provided of combined heater and accumulator assemblies. In an exemplary embodiment, an assembly generally includes an enclosure including a first portion, a second portion, and a divider between the first and second portions. The assembly also includes an inlet through which coolant may enter an interior of the second portion, and an outlet through which the coolant may exit the interior of the second portion. The assembly further includes a heat source operable for supplying heat for heating the coolant within the interior of the second portion.

An apparatus for supporting s a thermal or hydronic expansion tank relative to a hot water heater comprises a rigid bracket adapted to be secured to the tank and to the hot water heater. The bracket provides support for the tank adjacent to the pipe nipple. Means are provided for interconnecting the tank and the bracket for securing the tank to the bracket. In one aspect, the bracket comprises a base, and an end wall at each end of the base. The end walls adapted for engaging and supporting the tank, wherein one of the end walls engages the tank adjacent the pipe nipple and the other of the end walls engages the tank past the midpoint of the length of the tank from the base.

An inflated water storage device of a heater is located on a heating container, includes: an adjusting bag which has a storage cavity made of a soft and elastic material, and a connection tube body, each end of which is respectively connected with an inlet and an outlet, so as to be connected to the inlet pipeline on the heating container, and the connection tube body has a circulation tube connected with the storage cavity in the adjusting bag. When cold water flow into the inlet pipeline, water and air in the storage cavity will be sucked out and deformed to shrink to form a negative pressure, used to recover and absorb hot water and water vapor, and to make the adjusting bag store water swell and deform, so that the simple and effective structure can achieve energy saving and drip-proof practical effect.

There is disclosed a heat-transferring device comprising a buffer tank (1), a reactor vessel (2) in thermal contact with the buffer tank, wherein an active substance is held inside the reactor vessel, a burner (A), a reactor heating loop adapted to transfer heat from the burner to the active substance in the reactor vessel, a reactor cooling loop adapted to transfer heat from the active substance in the reactor vessel to the buffer tank, a volatile liquid reservoir (14) in fluid contact with the reactor vessel, an evaporator (15) in fluid contact with the volatile liquid reservoir, a volatile liquid in the volatile liquid reservoir, with the ability to be absorbed by the active substance at a first temperature and desorbed by the active substance at a higher temperature, an exhaust gas pipe (10,11,12) from the burner to the volatile liquid reservoir to heat it.

The invention discloses a heat storage water dispenser system, it comprises a heat storage tank, an overflow tank and a two-way valve device, the overflow tank is installed on the top of the heat storage tank, the overflow tank is provided with an exhaust port connected with the atmosphere, and the two-way valve device is installed between the heat storage tank and the overflow tank, an exhaust channel is formed between the two-way valve device and the overflow tank; the heat storage tank is provided with an expansion water channel and a hot water outlet channel, one end of the expansion water channel is connected with the heat storage tank, and the other end is connected with the overflow tank. Due to the existence of the expansion water channel and the design of consistent internal and external pressure of the heat storage tank of the present invention, the heat storage water dispenser system does not need to bear pressure in the heat storage tank, the water temperature range can be controlled in the range of 30-95 degrees, and can effectively solve the defects that the water outlet flows out without reason during heating and the water outlet delays when taking water.

An inflated water storage device of a heater is located on a heating container, includes: an adjusting bag which has a storage cavity made of a soft and elastic material, and a connection tube body, each end of which is respectively connected with an inlet and an outlet, so as to be connected to the inlet pipeline on the heating container, and the connection tube body has a circulation tube connected with the storage cavity in the adjusting bag. When cold water flow into the inlet pipeline, water and air in the storage cavity will be sucked out and deformed to shrink to form a negative pressure, used to recover and absorb hot water and water vapor, and to make the adjusting bag store water swell and deform, so that the simple and effective structure can achieve energy saving and drip-proof practical effect.