According to one embodiment, water storage tank has a space in an interior of the water storage tank. Water is stored in the space. The tank includes a lower enclosure, an upper enclosure, and a bonding member. The upper enclosure is positioned on the lower enclosure. The space is formed by the upper enclosure being bonded to the lower enclosure. The upper enclosure is longer than the lower enclosure in a vertical direction. The bonding member bonds the lower enclosure and the upper enclosure and is positioned between the lower enclosure and the upper enclosure. The lower enclosure has a concave part provided on the space side of the bonding member. The upper enclosure has a convex part provided on the space side of the bonding member. The convex part is engaged with the concave part.

According to one embodiment, water storage tank has a space in an interior of the water storage tank. Water is stored in the space. The tank includes a lower enclosure, an upper enclosure, and a bonding member. The upper enclosure is positioned on the lower enclosure. The space is formed by the upper enclosure being bonded to the lower enclosure. The upper enclosure is longer than the lower enclosure in a vertical direction. The bonding member bonds the lower enclosure and the upper enclosure and is positioned between the lower enclosure and the upper enclosure. The lower enclosure has a concave part provided on the space side of the bonding member. The upper enclosure has a convex part provided on the space side of the bonding member. The convex part is engaged with the concave part.

The instant hot water system CONTROL PANEL for new homes is an on-demand controller for a common residential water pump, installed at the hot water supply/recirculation hot water pipe line back to the regular residential gas or electric water heater, with push button switches in every bathroom, kitchen, laundry room etc. to pump hot water at the touch of said button; from the water heater to faucets throughout the house and dispense the hot water to the user, with no waiting time and very minimal cold water waste down the drain because the hot water has already reached every single faucet in the house as the users with the push of a button demanded it.

The instant hot water system CONTROL PANEL for new homes is an on-demand controller for a common residential water pump, installed at the hot water supply/recirculation hot water pipe line back to the regular residential gas or electric water heater, with push button switches in every bathroom, kitchen, laundry room etc. to pump hot water at the touch of said button; from the water heater to faucets throughout the house and dispense the hot water to the user, with no waiting time and very minimal cold water waste down the drain because the hot water has already reached every single faucet in the house as the users with the push of a button demanded it.

A boiler, including: electrodes immersed in contained water, for heating thereof; and a separating circuit, for supplying electric power from an electric grid supply to the electrodes therethrough in an electric separated manner, thereby the water electrified by the electrodes is electrically separated from the electric grid supply, thereby providing safety.

The present disclosure relates to a water-purifying device and a method for controlling the water-purifying device. In order to maintain a hot-water discharge temperature of water in the hot-water storage tank upon a hot-water discharge request from a user, an upper-limit temperature and lower-limit temperature corresponding to the hot-water discharge temperature are determined. Thus, the water-purifying device according to the present disclosure may drive a heating module thereof based on the upper-limit temperature and lower-limit temperature.

A liquid heating appliance for heating water or other liquids, suitably to a target temperature of from 55 C. to around boiling point, includes a primary heat chamber or body (heat source chamber) that is thermally insulated and which in use contains a high thermal density heat storing liquid or solid; and a secondary chamber alongside the primary chamber through which a liquid to be heated is passed in use. The appliance has a heat transfer feature to selectively transfer thermal energy from the heat-storing liquid or solid to the liquid to be heated in the secondary chamber. The secondary chamber is preferably a conduit through which the liquid to be heated is able to flow and the thus heated liquid can be delivered to a tap as hot water for a range of uses. Water may also be heated for a central heating system for space heating.

A boiler, including: electrodes immersed in contained water, for heating thereof; and a separating circuit, for supplying electric power from an electric grid supply to the electrodes therethrough in an electric separated manner, thereby the water electrified by the electrodes is electrically separated from the electric grid supply, thereby providing safety.

Heat buffer comprising at least mechanically coupled wall parts, wherein each of the wall parts comprises a substantially plate-like body; a liquid throughflow circuit incorporated in the body; one or more hydraulic couplings accessible from the outer side of the wall part for discharge and supply of liquid to the liquid throughflow circuit and configured for coupling to hydraulic couplings of a similar device; and is coupled at a mutual angle about a substantially vertical axis to a similar wall part, wherein the mechanically coupled devices are connected such that they enclose one space and wherein the heat buffer also comprises a floor and/or cover part for closing the enclosed space on an upper and/or underside.

Heat buffer comprising at least mechanically coupled wall parts, wherein each of the wall parts comprises a substantially plate-like body; a liquid throughflow circuit incorporated in the body; one or more hydraulic couplings accessible from the outer side of the wall part for discharge and supply of liquid to the liquid throughflow circuit and configured for coupling to hydraulic couplings of a similar device; and is coupled at a mutual angle about a substantially vertical axis to a similar wall part, wherein the mechanically coupled devices are connected such that they enclose one space and wherein the heat buffer also comprises a floor and/or cover part for closing the enclosed space on an upper and/or underside.