A method for insulating a gas-fueled water heater includes providing a tank for storage of water for heating and a combustion chamber adjacent to the tank. The method includes providing a compressed foam barrier circumferentially around the tank. Further, the method includes positioning a covering around the tank from a top end to a bottom end, the covering extending over the compressed foam barrier. Moreover, the method includes decompressing the compressed foam barrier such that an outer diameter of the foam barrier expands up to and seals against the covering so as to separate an internal volume defined between an outer surface of the tank and the covering into a first section and a second section. Then, the method includes injecting a foam material into the first section so as to provide a foam barrier around at least a portion of an outer surface of the tank.

A thermal vacuum insulation element (10) comprising a first planar limiting part (12) and a second planar limiting part (14). The limiting parts are spaced apart from each other and define an evacuated space (16) between them. The evacuated space (16) is sealed by means (26) for sealing. The vacuum insulation element includes first support elements (18) extending away from the first limiting part (12) into the evacuated space (16) and second support elements (20) extending away from the second limiting part (14) into the evacuated space (16), the limiting parts (12, 14) being arranged with the support elements (18, 20) such that the first support elements (18) and the second support elements (20) protrude beyond and are spaced from each other. The first support elements (18) are spaced from the second limiting part (14), and the second support elements (20) are spaced from the first limiting part (12). A fiber structure (22) interconnects the first support elements (18) and the second support elements (20). The fiber structure (22) has a low thermal conductivity and is configured to absorb at least the pressure caused by the vacuum on the first and second limiting parts (12, 14).

A hot water appliance 10 comprises a water tank 12 provided with a water tank wall 14. The hot water appliance 10 further comprises a vacuum vessel 20 which encloses a vacuum space V. The water tank 12 is wholly included in the vacuum space, and the whole water tank wall 14 is bounded by vacuum. The vacuum vessel 20 is provided with a vacuum vessel wall 22 which consists of a number of vacuum vessel wall parts that are gastightly connected with each other by welding or soldering. Further, the hot water appliance 10 comprises at least one functional pipe 100, 200, 300, 400, 500 which extends through the water tank wall 14 and is gastightly connected with the water tank wall 14 at the location of a water tank wall connection 18. The functional pipe 100, 200, 300, 400, 500 also extends through the vacuum vessel wall 22 and is gastightly connected with the vacuum vessel wall 22 at the location of a vacuum vessel wall connection 24.

A tank water heater assembly is provided including a tank water heater and a drain pan provided with a sensor holder for mounting a sensor. The sensor holder accommodates a leak detection sensor at predefined distance above an inner surface of a bottom wall of the drain pan. In this way the presence of harmless small amounts of water in the drain pan do not trigger an alarm. A transport assembly is presented for facilitating transportation of the tank water heater assembly to an installation site and subsequent installation. Finally, a method for installation of a tank water heater assembly is provided.

A portable solar shower is a showering device that can heat the water in a tank to a user defined temperature, with the help of a large solar panel. In order to accomplish that, the device includes a thermostat that displays multiple temperatures, a vacuum insulated water tank that helps maintain the temperature of the water at the user defined temperature level for long hours, and a retractable showerhead and shower pipe. Further, the device is mounted over an upper surface of a vehicle, thereby not compromising any luggage or trunk space of the vehicle. The portable solar shower further includes a power unit that provides power to water pumps and all the necessary circuitry within the device. Furthermore, the device includes an additional smaller solar panel that can provide energy to the power unit, thereby enabling the user to run the shower unit on natural renewable sources of energy.

An apparatus and method for heating water using tankless water heater with TRIAC. The present invention is a TRIAC adjustment device that lets a user adjust electric output within a tankless water heater to limit or turn off electricity to a TRAIC within the tankless water heater. As utilized herein, a TRAIC or traic is defined as “a three-electrode semiconductor device that will conduct in either direction when triggered by a positive or negative signal at the gate electrode.”

A method for detecting malfunction of an electric boiler, the method including: a) detecting over scale accumulation by the steps of: metering the boiler's heating cycle, being a time from activating the boiler by a thermostat thereof until deactivating the boiler by the thermostat; if the heating cycle is longer than a threshold, then indicating over accumulation of scale in the boiler; b) detecting a malfunction of insulation of the boiler, by the steps of: metering the boiler's cooling cycle, being a time from deactivating the boiler by a thermostat thereof until reactivating the boiler by the thermostat; if the cooling cycle is shorter than the threshold, then indicating malfunction of insulation of the boiler; thereby allowing indicating malfunction of said boiler only by metering the heating and cooling cycles of said boiler.

A water heater comprising a tank (1), an insulation blanket (12, 13, 17) and an outer shell (14, 16). The insulation blanket (12, 13, 17) comprises a preformed foam assembled from at least two pieces of foam (12, 13), which together surround the tank (1). The outer shell comprises a lower part (14) surrounding the at least two pieces of foam (12, 13). The at least two pieces of foam (12, 13) have notches (8, 9, 10) extending along outer corners thereof to form channels (8a, 9a, 10a) between the pieces of foam (12, 13) and the lower part (14). The channels (8a, 9a, 10a) extend from above the tank (1) to a drain outlet (15) from the lower part (14), to conduct any leakage out of the water heater.

An electric water heating apparatus includes a first electric water heater having a first tank adapted to hold a quantity of water and a first electric heating structure disposed within the first tank. The electric water heating apparatus further includes a second electric water heater having a second tank adapted to hold a quantity of water; and a second electric heating structure disposed within the second tank. The electric water heating apparatus further includes a control unit that is in electrical communication with the first electric heating structure and second electric heating structure, the control unit configured to prevent both the first electric heating structure and the second electric heating structure from being simultaneously operable.

A heating module for a water heater includes a heater and a housing mounted to the heater. The heater includes a conductive pipe and a heating film attached to the outside of the conductive pipe. A room is defined between the housing and the heater for transferring heat to the water. The heating module is located in the tank of the water heater. When water enters into the tank, the conductive pipe transfers thermal energy to the water flowing through the conductive pipe by way of thermal convention. The water in the tank is heated by the housing by way of thermal conduction. The temperature of the water in the tank is quickly increased by the two ways.