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2. Rooftop water tower - Wikipedia

   en.wikipedia.org/wiki/Rooftop_water_tower

   Rooftop water towers atop apartment buildings on East 57th Street in New York City showing differing kinds of tank A highrise residential building with integrated water tank in Bremerhaven, Germany. A rooftop water tower is a variant of a water tower, consisting of a water container placed on the roof of a tall building. This structure supplies ...

3. 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.

4. Hot water storage tank - Wikipedia

   en.wikipedia.org/wiki/Hot_water_storage_tank

   This drop in temperature causes the thermostat to switch on the electric heating element at the bottom of the tank. When the water at the top of the tank is drawn off the hot water at the top is displaced by relatively cooler water, the top thermostat turns the top element on. When the flow stops, the elements stay on until their settings are ...

5. Water heating - Wikipedia

   en.wikipedia.org/wiki/Water_heating

   An 80 US gal (300 L; 67 imp gal) electric storage tank water heater was able to have a minimum energy factor of 86% under the pre-2015 standard, while under the 2015 standard, the minimum energy factor for an 80-gallon electric storage tank water heater is now 197%, which is only possible with heat pump technology. This rating measures ...

6. Heating, ventilation, and air conditioning - Wikipedia

   en.wikipedia.org/wiki/Heating,_ventilation,_and...

   Heaters are appliances whose purpose is to generate heat (i.e. warmth) for the building. This can be done via central heating . Such a system contains a boiler , furnace , or heat pump to heat water, steam, or air in a central location such as a furnace room in a home, or a mechanical room in a large building.

7. Online sports betting has trickled down to high school football

   www.aol.com/sports/online-sports-betting...

   Top-tier high school football, Mason argues, is as much a big business as any of those other sports. There are TV contracts and shoe-apparel sponsorships, multi-million-dollar facilities and ...