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  2. Water heating - Wikipedia

    en.wikipedia.org/wiki/Water_heating

    Where hot-water space heating boilers are installed, domestic hot water cylinders are usually heated indirectly by primary water from the boiler, or by an electric immersion heater (often as backup to the boiler). In the UK these vessels are called indirect cylinders and direct cylinders, respectively. Additionally, if these cylinders form part ...

  3. United States building energy codes - Wikipedia

    en.wikipedia.org/wiki/United_States_building...

    Depiction of New York World Building fire in New York City in 1882. Building codes in the United States are a collection of regulations and laws adopted by state and local jurisdictions that set “minimum requirements for how structural systems, plumbing, heating, ventilation, and air conditioning (), natural gas systems and other aspects of residential and commercial buildings should be ...

  4. A. O. Smith - Wikipedia

    en.wikipedia.org/wiki/A._O._Smith

    In 1946, it built a 400,000 square foot residential water heater plant in Kankakee, Illinois. From this plant, it also made water heaters with the Kenmore name. [11] In 1948, it entered the commercial water heater market after acquiring The Burkay Company of Toledo, Ohio.

  5. Rheem Manufacturing Company - Wikipedia

    en.wikipedia.org/wiki/Rheem_Manufacturing_Company

    Republic Steel made boilers and tanks, which allowed Rheem to enter the water heating business. The company expanded overseas to Australia in 1936, building a plant in Sydney to make water heaters. [12] In 1941, the company became the largest manufacturer of automatic water heaters in the United States. [10]

  6. AERCO International - Wikipedia

    en.wikipedia.org/wiki/AERCO_International

    In 1949, AERCO introduced the industry's first semi-instantaneous, tankless steam-to-water water heater. In 1988, AERCO introduced the first condensing and fully modulating boiler and water heater to the commercial market. The company develops rapid water heating products and a product line that achieves 99% efficiency. [1] [2]

  7. Condensing boiler - Wikipedia

    en.wikipedia.org/wiki/Condensing_boiler

    Condensing boilers are water heaters typically used for heating systems that are fueled by gas or oil. When operated in the correct circumstances, a heating system can achieve high efficiency (greater than 90% on the higher heating value ) by condensing water vapour found in the exhaust gases in a heat exchanger to preheat the circulating water.

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