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2. Tankless water heating - Wikipedia

   en.wikipedia.org/wiki/Tankless_water_heating

   Maintaining constant shower temperature: Similarly, unlike with a tank heater, the hot water temperature from a non-modulated tankless heater is inversely proportional to the rate of the water flow—the faster the flow, the less time the water spends in the heating element being heated. Mixing hot and cold water to the "right" temperature from ...

3. Water dispenser - Wikipedia

   en.wikipedia.org/wiki/Water_dispenser

   This allows the water to get cold more quickly again at the expense of having a lower volume of cold water available. Ice-bank Cooling System - A pressurized stainless steel coil and a copper coil is immersed in a reservoir full of pre-chilled water. The copper coil containing the refrigerant gas freezes the water contained within the reservoir ...

4. Water heating - Wikipedia

   en.wikipedia.org/wiki/Water_heating

   Tank thermostats are not a reliable guide to the internal temperature of the tank. Gas-fired water tanks may have no temperature calibration shown. An electric thermostat shows the temperature at the elevation of the thermostat, but water lower in the tank can be considerably cooler. An outlet thermometer is a better indication of water ...

5. Instant hot water dispenser - Wikipedia

   en.wikipedia.org/wiki/Instant_hot_water_dispenser

   A hot water dispenser which keeps water hot in a tank uses the energy needed to heat the water to the required temperature and wastes the energy needed to keep the water hot permanently in a thermally-insulated tank when not being used. These tank type dispensers often also consists of energy wasting 'keep warm' and 'reboil' functions. On the ...

6. Radiator (engine cooling) - Wikipedia

   en.wikipedia.org/wiki/Radiator_(engine_cooling)

   An overflow tank that runs dry may result in the coolant vaporizing, which can cause localized or general overheating of the engine. Severe damage may result if the vehicle is allowed to run over temperature. Failures such as blown head gaskets, and warped or cracked cylinder heads or cylinder blocks may be the result. Sometimes there will be ...

7. Thermostat - Wikipedia

   en.wikipedia.org/wiki/Thermostat

   Their poor efficiency is acceptable in water heaters, since most of the energy "wasted" on the pilot still represents a direct heat gain for the water tank. The Millivolt system also makes it unnecessary for a special electrical circuit to be run to the water heater or furnace; these systems are often completely self-sufficient and can run ...