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  2. Uniform Swimming Pool, Spa and Hot Tub Code - Wikipedia

    en.wikipedia.org/wiki/Uniform_Swimming_Pool,_Spa...

    Designated as an American National Standard, the Uniform Swimming Pool, Spa and Hot Tub Code (USPSHTC) is a model code developed by the International Association of Plumbing and Mechanical Officials to govern the installation and inspection of plumbing systems associated with swimming pools, spas and hot tubs as a means of promoting the public's health, safety and welfare.

  3. List of HTTP status codes - Wikipedia

    en.wikipedia.org/wiki/List_of_HTTP_status_codes

    The RFC specifies this code should be returned by teapots requested to brew coffee. [18] This HTTP status is used as an Easter egg in some websites, such as Google.com's "I'm a teapot" easter egg. [19] [20] [21] Sometimes, this status code is also used as a response to a blocked request, instead of the more appropriate 403 Forbidden. [22] [23]

  4. Hayward Area Recreation and Park District - Wikipedia

    en.wikipedia.org/wiki/Hayward_Area_Recreation...

    Hayward Plunge at Memorial Park. The Hayward Area Recreation and Park District (H.A.R.D.) is the park management agency for most of the parks in the city of Hayward, California. It was created in 1944 [1] and is an independent special district under California law. [2] H.A.R.D. is the largest recreation district in California. [3]

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

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

    Bans on large gas-fired units and pool heaters will begin in 2027, and high-temperature units in 2029. Gas-fired water heaters will be banned from existing buildings once the appliances reach a ...

  6. Water heating - Wikipedia

    en.wikipedia.org/wiki/Water_heating

    In traditional plumbing in the UK, the space-heating boiler is set up to heat a separate hot water cylinder or water heater for potable hot water. Such water heaters are often fitted with an auxiliary electrical immersion heater for use if the boiler is out of action for a time. Heat from the space-heating boiler is transferred to the water ...

  7. Hayward, California - Wikipedia

    en.wikipedia.org/wiki/Hayward,_California

    Hayward is a city located in Alameda County, California, United States, in the East Bay subregion of the San Francisco Bay Area. With a population of 162,954 as of 2020, [10] Hayward is the sixth largest city in the Bay Area, and the third largest in Alameda County. [12] Hayward was ranked as the 36th most populous municipality in California.

  8. Heat pump - Wikipedia

    en.wikipedia.org/wiki/Heat_pump

    With losses in efficiency, an ASHP can even provide full central heating with a flow temperature up to 80 °C (176 °F). [ 21 ] As of 2023 [update] about 10% of building heating worldwide is from ASHPs.

  9. Hayward Executive Airport - Wikipedia

    en.wikipedia.org/wiki/Hayward_Executive_Airport

    Hayward Executive Airport (IATA: HWD, ICAO: KHWD, FAA LID: HWD) is a municipal airport in Hayward, California. [1] The National Plan of Integrated Airport Systems for 2023–2027 categorized it as a reliever airport. [2] The towered airport near the east shore of San Francisco Bay was formerly the Hayward Air Terminal. [3] [4]