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  2. Water heating - Wikipedia

    en.wikipedia.org/wiki/Water_heating

    All new gas storage tank water heaters with capacities smaller than 55 US gal (210 L; 46 imp gal) sold in the United States in 2015 or later shall have an energy factor of at least 60% (for 50-US-gallon units, higher for smaller units), increased from the pre-2015 minimum standard of 58% energy factor for 50-US-gallon gas units. Electric ...

  3. 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.

  4. New York City water supply system - Wikipedia

    en.wikipedia.org/wiki/New_York_City_water_supply...

    The water system has a storage capacity of 550 billion US gal (2.1 billion m 3) and provides over 1.2 billion US gal (4.5 million m 3) per day of drinking water to more than eight million city residents, and another one million users in four upstate counties bordering on the system.

  5. Cannonsville Reservoir - Wikipedia

    en.wikipedia.org/wiki/Cannonsville_Reservoir

    Location: Delaware County, New York: Coordinates: 1]: Type: Reservoir: Primary inflows: West Branch Delaware River: Primary outflows: West Branch Delaware River, West Delaware Tunnel: Catchment area: 455 sq mi (1,180 km 2): Basin countries: United States: Water volume: 362,000,000 m 3 (0.087 cu mi): Surface elevation: 1,148 feet (350 m) [1]: The Cannonsville Reservoir is a reservoir in the New ...

  6. Delaware Aqueduct - Wikipedia

    en.wikipedia.org/wiki/Delaware_Aqueduct

    The aqueduct was constructed between 1939 and 1945, and carries approximately half of New York City's water supply of 1.3 billion US gallons (4,900,000 m 3) per day. At 13.5 feet (4.1 m) wide and 85 miles (137 km) long, the Delaware Aqueduct is the world's longest tunnel .

  7. Own a pool in Southern California? New air-quality rule ...

    www.aol.com/news/own-pool-southern-california...

    The rule will lead to the replacement over three decades of more than 1 million gas-burning appliances — including an estimated 700,000 pool heaters and 300,000 tankless water heaters — with ...

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