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2. Tips for troubleshooting water heater issues - AOL

   www.aol.com/tips-troubleshooting-water-heater...

   Most electric water heaters have two heating elements: one at the top of the tank and one lower element. Power enters the system at the top, runs to the high-temperature cut-off switch (in the ...

3. 11 Reasons Why Your Water Is Only Lukewarm - AOL

   www.aol.com/11-reasons-why-water-only-171300843.html

   Electric water heaters usually have two heating elements, and if one of them breaks, the other has to make up the difference. This lack of efficiency can result in lukewarm water from your faucets.

4. Electrical fault - Wikipedia

   en.wikipedia.org/wiki/Electrical_fault

   In power systems, protective devices can detect fault conditions and operate circuit breakers and other devices to limit the loss of service due to a failure. In a polyphase system, a fault may affect all phases equally, which is a "symmetric fault". If only some phases are affected, the resulting "asymmetric fault" becomes more complicated to ...

5. Tankless water heating - Wikipedia

   en.wikipedia.org/wiki/Tankless_water_heating

   [citation needed] Instantaneous-type heaters are also problematic if they are connected to district heating systems, as they raise peak demands, and most utilities prefer all buildings to have hot water storage. Power outage: In case of a power outage, tankless heaters cannot supply hot water, unlike tank based heaters which can supply the hot ...

6. Standing loss - Wikipedia

   en.wikipedia.org/wiki/Standing_loss

   Standing loss, or standing losses, is a non-technical term to define energy losses in a system, usually associated with heat and hot water storage systems. It is the amount of energy lost through heat transfer to the surrounding environment; as such it is directly related to how well insulated a system is.

7. Leak detection - Wikipedia

   en.wikipedia.org/wiki/Leak_detection

   If a leak occurs, the substances to be measured come into contact with the tube in the form of vapour, gas or dissolved in water. In the event of a leak, some of the leaking substance diffuses into the tube. After a certain period of time, the inside of the tube produces an accurate image of the substances surrounding the tube.