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2. Water heating - Wikipedia

   en.wikipedia.org/wiki/Water_heating

   Direct electric resistance tank water heaters are not included in the Energy Star program; however, the Energy Star program does include electric heat pump units with energy factors of 200% or higher. Tankless gas water heaters (as of 2015) must have an energy factor of 90% or higher for Energy Star qualification.

3. Zip Industries - Wikipedia

   en.wikipedia.org/wiki/Zip_Industries

   Prior to 1962, Zip focused primarily on water heaters for kitchens and hot water heaters for bathrooms. Zip began manufacturing and marketing in Australia from about 1947. An early Zip innovation was a manually operated over-sink boiling water heater with a "ready whistle" and automatic cut-off, which became a popular fixture in Australian restaurants and community kitchens during the 1950s ...

4. 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.

5. District heating - Wikipedia

   en.wikipedia.org/wiki/District_heating

   The Spittelau incineration plant is one of several plants that provide district heating in Vienna, Austria. Animated image showing how district heating works. District heating (also known as heat networks) is a system for distributing heat generated in a centralized location through a system of insulated pipes for residential and commercial heating requirements such as space heating and water ...

6. Backdraft - Wikipedia

   en.wikipedia.org/wiki/Backdraft

   A backdraft (North American English), backdraught (British English) [1] or smoke explosion is the abrupt burning of superheated gases in a fire caused when oxygen rapidly enters a hot, oxygen-depleted environment; for example, when a window or door to an enclosed space is opened or broken. Backdrafts are typically seen as a blast of smoke and ...

7. Fort Worth, Texas - Wikipedia

   en.wikipedia.org/wiki/Fort_Worth,_Texas

   Fort Worth is a city in the U.S. state of Texas and the seat of Tarrant County, covering nearly 350 square miles (910 km 2) into Denton, Johnson, Parker, and Wise counties. . Fort Worth's population was 918,915 as of the official 2020 U.S. Census count, making it the 12th-most populous city in the United St