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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. Two facing charges for student’s death from carbon monoxide ...

   www.aol.com/two-facing-charges-student-death...

   The two men are alleged to have improperly installed air intake and exhaust venting for a new tankless water heater inside an on-campus modular apartment, Unit No. 305, where Rodriguez and other ...

4. Water heating - Wikipedia

   en.wikipedia.org/wiki/Water_heating

   Water heating is a heat transfer process that uses an energy source to heat water above its initial temperature. Typical domestic uses of hot water include cooking, cleaning, bathing, and space heating. In industry, hot water and water heated to steam have many uses. Domestically, water is traditionally heated in vessels known as water heaters ...

5. 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.

6. Thermosiphon - Wikipedia

   en.wikipedia.org/wiki/Thermosiphon

   Thermosiphon. Thermosiphon (or thermosyphon) is a method of passive heat exchange, based on natural convection, which circulates a fluid without the necessity of a mechanical pump. Thermosiphoning is used for circulation of liquids and volatile gases in heating and cooling applications such as heat pumps, water heaters, boilers and furnaces ...

7. Talk:Water heating - Wikipedia

   en.wikipedia.org/wiki/Talk:Water_heating

   I have uploaded a file of two commercial tankless water heaters working in parallel. If anyone sees a need for this image, please include in the article. Image Description: Two Rannai brand, tankless water heaters in a commercial setting. Each unit is rated 199,000 BTU and the two work in parallel, heating water to 185 degrees Fahrenheit.