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  2. Southern California Gas Company - Wikipedia

    en.wikipedia.org/wiki/Southern_California_Gas...

    Since natural gas had twice the heating value of manufactured gas, the company took the bold step to convert its system to natural gas and build pipelines throughout the state. Natural gas was soon found throughout the country, and demand for the fuel was rapidly growing. To meet customer demand, the company began storing gas in large holding ...

  3. Water heating - Wikipedia

    en.wikipedia.org/wiki/Water_heating

    Under the pre-2015 standard, a 75 US gal (280 L; 62 imp gal) gas storage water heater with a nominal input of 22 kW (75,000 BTU/h) or less was able to have an energy factor as low as 53%, while under the 2015 standard, the minimum energy factor for a 75-US-gallon gas storage tank water heater is now 74%, which can only be achieved by using ...

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

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

    June 7, 2024 at 5:09 PM. An estimated 700,000 pool heaters in Southern California will have to switch to electric from gas under the South Coast AQMD's new rule. (Ricardo DeAratanha / Los Angeles ...

  5. 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 convection and heated water to flow out of the tank. [1][2] Newer water heaters have built-in heat traps.

  6. Storage water heater - Wikipedia

    en.wikipedia.org/wiki/Storage_water_heater

    Storage water heater. [citation needed] A storage water heater, or a hot water system (HWS), is a domestic water heating appliance that uses a hot water storage tank to maximize water heating capacity and provide instantaneous delivery of hot water. [1] Conventional storage water heaters use a variety of fuels, including natural gas, propane ...

  7. Natural gas pipeline system in the United States - Wikipedia

    en.wikipedia.org/wiki/Natural_gas_pipeline...

    Natural gas pipelines map. The US natural gas pipeline system is a complex system of pipelines that carries natural gas nationwide and for import and export for use by millions of people daily for their consumer and commercial needs. Across the country, there are more than 210 pipeline systems that total more than 305,000 miles of interstate ...

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