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2. Heat trap - Wikipedia

   en.wikipedia.org/wiki/Heat_trap

   Heat traps are valves or loops of pipe on the cold water inlet and hot water outlet of water heaters. The heat traps allow cold water to flow into the water heater tank, but prevent unwanted natural convection and heated water to flow out of the tank. [1] [2] Newer water heaters have built-in heat traps.

3. Thermosiphon - Wikipedia

   en.wikipedia.org/wiki/Thermosiphon

   Thermosyphon circulation in a simple solar water heater (not a working model; there is no water supply to replenish the tank when the tap is used). A thermosiphon (or thermosyphon) is a device that employs a method of passive heat exchange based on natural convection, which circulates a fluid without the necessity of a mechanical pump.

4. Water heating - Wikipedia

   en.wikipedia.org/wiki/Water_heating

   Two conflicting safety issues affect water heater temperature—the risk of scalding from excessively hot water greater than 55 °C (131 °F), and the risk of incubating bacteria colonies, particularly Legionella, in water that is not hot enough to kill them. Both risks are potentially life-threatening and are balanced by setting the water ...

5. Storage water heater - Wikipedia

   en.wikipedia.org/wiki/Storage_water_heater

   Solar heat is clean and renewable. This is the most modern system. Increasingly, solar powered water heaters are being used. Their solar thermal collectors are installed outside dwellings, typically on the roof or walls or nearby, and the potable hot water storage tank is typically a pre-existing or new conventional water heater, or a water heater specifically designed for solar thermal.

6. 'As foretold in the prophecy': Elon Musk and internet react ...

   www.aol.com/foretold-prophecy-elon-musk-internet...

   Tesla's stock price reached $420 on Wednesday afternoon, which elicited responses from social media users and the company's CEO, Elon Musk. "As foretold in the prophecy," Musk wrote in an X post ...

7. PayPal fixes outage that affected thousands worldwide - AOL

   www.aol.com/news/paypal-outage-affects-thousands...

   The company experienced a system issue that affected multiple products including account withdrawals, peer-to-peer payment service Venmo, online checkout and crypto. PayPal said the issue, which ...