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  2. Rapid City, South Dakota metropolitan area - Wikipedia

    en.wikipedia.org/wiki/Rapid_City,_South_Dakota...

    The Rapid City, SD metropolitan area, as defined by the United States Census Bureau. Anchored by the city of Rapid City , the area corresponds to the entirety of Pennington and Meade counties in the state of South Dakota , though the Rapid City market area extends well beyond those counties and into Nebraska , Montana , Wyoming , and North Dakota .

  3. Heating, ventilation, and air conditioning - Wikipedia

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

    For example, a conventional heat pump system used to heat a building in Montana's −57 °C (−70 °F) low temperature or cool a building in the highest temperature ever recorded in the US—57 °C (134 °F) in Death Valley, California, in 1913 would require a large amount of energy due to the extreme difference between inside and outside air ...

  4. Ground source heat pump - Wikipedia

    en.wikipedia.org/wiki/Ground_source_heat_pump

    These heat pumps are also preferred for pool heating. Heat pumps typically only heat water to about 55 °C (131 °F) efficiently, whereas boilers typically operate at 65–95 °C (149–203 °F) [citation needed]. The size of radiators designed for the higher temperatures achieved by boilers may be too small for use with heat pumps, requiring ...

  5. Heat pump - Wikipedia

    en.wikipedia.org/wiki/Heat_pump

    The main heat sources were lake water, river water, groundwater, and waste heat. Particularly noteworthy are the six historic heat pumps from the city of Zurich with heat outputs from 100 kW to 6 MW. An international milestone is the heat pump built by Escher Wyss in 1937/38 to replace the wood stoves in the City Hall of Zurich.

  6. HVAC control system - Wikipedia

    en.wikipedia.org/wiki/HVAC_control_system

    More complex HVAC systems can interface to Building Automation System (BAS) to allow the building owners to have more control over the heating or cooling units. [3] The building owner can monitor the system and respond to alarms generated by the system from local or remote locations.

  7. Rapid City, South Dakota - Wikipedia

    en.wikipedia.org/wiki/Rapid_City,_South_Dakota

    Rapid City is a city in South Dakota, United States, and the county seat of Pennington County. [10] It is the second most populous city in the state, after Sioux Falls.It is located on the eastern slope of the Black Hills in western South Dakota and was named after Rapid Creek, where the settlement developed.

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