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  2. Tankless water heating - Wikipedia

    en.wikipedia.org/wiki/Tankless_water_heating

    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. There are also heaters that use several single-phase circuits instead.

  3. Rinnai - Wikipedia

    en.wikipedia.org/wiki/Rinnai

    Rinnai Corporation. Rinnai Corporation is a Japanese multinational company based in Nagoya, Japan, that manufactures gas appliances, including energy-efficient tankless water heaters, [4] home heating appliances, kitchen appliances, gas clothes dryers and commercial-use equipment such as rice cookers, grillers, fryers and salamanders. Rinnai is ...

  4. Storage water heater - Wikipedia

    en.wikipedia.org/wiki/Storage_water_heater

    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, fuel oil, and electricity.

  5. The Best RV Tankless Water Heater in 2024 - Autoblog

    www.autoblog.com/.../best-tankless-water-heater-rv

    Furrion 2.4GPM Tankless RV Gas Water Heater - $650.00. Key Features. 2.4 GPM (Gallons Per Minute) capacity; Delivers hot water on demand "even when the ambient temperature drop to 32°F"

  6. Water heating - Wikipedia

    en.wikipedia.org/wiki/Water_heating

    The main disadvantage is their much higher initial costs; a US study in Minnesota reported a 20- to 40-year payback for the tankless water heaters. [citation needed] In a comparison to a less efficient natural gas fired hot water tank, on-demand natural gas will cost 30% more over its useful life. [dubious – discuss] [citation needed]

  7. ESSENTIAL 4dr All-Wheel Drive - Autoblog

    www.autoblog.com/buy/2025-INFINITI-QX55...

    ESSENTIAL 4dr All-Wheel Drive2025 INFINITI QX55. More Photos. Retail Price. $55,100 MSRP / Window Sticker Price. Find Best Price. Engine. 2.0L I-4. MPG. 22 City / 28 Hwy.

  8. COD Online

    cod.ed.gov/.../content/help/awardEditCodes1617.jsp

    COD performs the following validations on Student Level Code with Program Credential Level: If Program Credential Level is 01-04 or 99, then Student Level Code must be 0-5. If Program Credential Level is 05-08, then Student Level Code must be 0-7. If any of the above criteria are not met, Edit 208 will trigger.

  9. List of country calling codes - Wikipedia

    en.wikipedia.org/wiki/List_of_country_calling_codes

    Zone 5 uses eight 2-digit codes (51–58) and two sets of 3-digit codes (50x, 59x) to serve South and Central America. Zone 6 uses seven 2-digit codes (60–66) and three sets of 3-digit codes (67x–69x) to serve Southeast Asia and Oceania. Zone 7 uses an integrated numbering plan; two digits (7x) determine the area served: Russia or Kazakhstan.

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