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2. Water heating - Wikipedia

   en.wikipedia.org/wiki/Water_heating

   Under the pre-2015 standard, a 75 US gal (280 L; 62 imp gal) gas storage water heater with a nominal input of 22 kW (75,000 BTU/h) or less was able to have an energy factor as low as 53%, while under the 2015 standard, the minimum energy factor for a 75-US-gallon gas storage tank water heater is now 74%, which can only be achieved by using ...

3. 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.

4. Orders of magnitude (power) - Wikipedia

   en.wikipedia.org/wiki/Orders_of_magnitude_(power)

   10 3: kilo-(kW) 1–3 × 10 3 W tech: heat output of a domestic electric kettle: 1.1 × 10 3 W tech: power of a microwave oven: 1.366 × 10 3 W astro: power per square meter received from the Sun at the Earth's orbit: 1.5 × 10 3 W tech: legal limit of power output of an amateur radio station in the United States up to 2 × 10 3 W

5. Bradford White - Wikipedia

   en.wikipedia.org/wiki/Bradford_White

   Bradford White claims this approach ensures proper and safe installation of its water heaters, and also prevents code violations. In 2006, in a report by J.D. Power and Associates, Bradford White was ranked highest in subcontractor satisfaction of water heater brands. [1]

6. Kilowatt-hour - Wikipedia

   en.wikipedia.org/wiki/Kilowatt-hour

   Watts per hour (W/h) is a unit of a change of power per hour, i.e. an acceleration in the delivery of energy. It is used to measure the daily variation of demand (e.g. the slope of the duck curve), or ramp-up behavior of power plants. For example, a power plant that reaches a power output of 1 MW from 0 MW in 15 minutes has a ramp-up rate of 4 ...

7. She was a teenage mother in Detroit. Now she’s a Ghanaian ‘Queen’

   www.aol.com/she-teenage-mother-detroit-now...

   Kennedy Johnson was 15 years old when she gave birth to a baby girl in a Detroit foster home for teen moms, in February 1996. Twenty-five years later, when Johnson found herself in northern Ghana ...