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  2. Rinnai - Wikipedia

    en.wikipedia.org/wiki/Rinnai

    In 1971, Rinnai & Co. changed their name to Rinnai Corporation. Rinnai began with manufacturing and selling gas appliances [6] such as gas table top stoves, gas ovens and gas water heaters. From 1938 to 1946, the company paused their gas appliances production to manufacture aircraft parts for the army for war effort. [7]

  3. Gas heater - Wikipedia

    en.wikipedia.org/wiki/Gas_heater

    A gas heater is a space heater used to heat a room or outdoor area by burning natural gas, liquefied petroleum gas, propane, or butane. Indoor household gas heaters can be broadly categorized in one of two ways: flued or non-flued, or vented and unvented .

  4. Tankless water heating - Wikipedia

    en.wikipedia.org/wiki/Tankless_water_heating

    Tankless gas electronic ignition water heaters. Gas water heaters have an exhaust vent or one to two exhaust pipes on the top, and still require electric power for electronics, sensing and ignition. A three-phase, 21 kW, 400-volt tankless water heater in Europe, with new European color coding for three-phase power.

  5. List of ISO standards 22000–23999 - Wikipedia

    en.wikipedia.org/wiki/List_of_ISO_standards_22000...

    ISO 22266-1:2009 Part 1: Land-based steam and gas turbine generator sets in excess of 50 MW; ISO 22274:2013 Systems to manage terminology, knowledge and content - Concept-related aspects for developing and internationalizing classification systems

  6. OS 2200 - Wikipedia

    en.wikipedia.org/wiki/OS_2200

    The OS 2200 security system is designed to protect data from unauthorized access, modification, or exposure. It includes an implementation of the DoD Orange Book B1 level specification. [21] OS 2200 first obtained a successful B1 evaluation in September, 1989. That evaluation was maintained until 1994.