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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. Rheem Manufacturing Company - Wikipedia

   en.wikipedia.org/wiki/Rheem_Manufacturing_Company

   Website. www .rheem .com. Rheem Manufacturing Company is an American privately held manufacturer that produces residential and commercial water heaters and boilers, as well as heating, ventilating and air conditioning (HVAC) equipment. The company also produces and sells products under the Ruud brand name.

4. Forced-air gas - Wikipedia

   en.wikipedia.org/wiki/Forced-air_gas

   Gas-fired forced-air furnaces have a burner in the furnace fuelled by natural gas. A blower forces cold air through a heat exchanger and then through duct-work that distributes the hot air through the building. [2] Each room has an outlet from the duct system, often mounted in the floor or low on the wall – some rooms will also have an ...

5. Texas university leaders say hundreds of positions, programs ...

   www.aol.com/news/texas-university-leaders...

   Texas universities eliminated or changed hundreds of jobs in recent months in response to one of the nation's most sweeping bans on diversity programs on college campuses, school officials told ...

6. Dolly Parton Reveals Why This Brand New Dollywood Attraction ...

   www.aol.com/dolly-parton-reveals-why-brand...

   The new attraction—The Dolly Parton Experience—is located where the previous museum was, the Chasing Rainbows Museum. Now, there's a giant sparkling pink and purple butterfly to greet you ...

7. Israeli tanks seen advancing further into Rafah despite ... - AOL

   www.aol.com/israeli-tanks-seen-advancing-rafah...

   Israel’s tanks were seen in central Rafah on Tuesday for the first time since its military entered Gaza’s southernmost city earlier this month, two eyewitnesses told CNN, signaling a new phase ...

8. Ground source heat pump - Wikipedia

   en.wikipedia.org/wiki/Ground_source_heat_pump

   A ground source heat pump (also geothermal heat pump) is a heating/cooling system for buildings that use a type of heat pump to transfer heat to or from the ground, taking advantage of the relative constancy of temperatures of the earth through the seasons. Ground-source heat pumps (GSHPs) – or geothermal heat pumps (GHP), as they are ...

9. Absorption heat pump - Wikipedia

   en.wikipedia.org/wiki/Absorption_heat_pump

   Absorption heat pump. An absorption heat pump ( AHP) is a heat pump driven by thermal energy such as combustion of natural gas, steam solar-heated water, air or geothermal-heated water [1] [2] differently from compression heat pumps that are driven by mechanical energy. [citation needed] AHPs are more complex and require larger units compared ...