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2. Water heating - Wikipedia

   en.wikipedia.org/wiki/Water_heating

   A BTU is the energy required to raise one pound of water by one degree Fahrenheit. A US gallon of water weighs 8.3 pounds (3.8 kg). To raise 230 L (60 US gal) of water from 10 °C (50 °F) to 50 °C (122 °F) at 90% efficiency requires 60 × 8.3 × (122 − 50) × 1.11 = 39,840 BTU. A 46 kW (157,000 BTU/h) heater, as might exist in a tankless ...

3. 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.

4. US gasoline prices set to fall under $3/gallon as election nears

   www.aol.com/news/us-gasoline-prices-set-fall...

   September 12, 2024 at 6:04 AM. By Shariq Khan. NEW YORK (Reuters) - U.S. motorists should see gasoline prices fall below $3 a gallon for the first time in over three years as soon as next month ...

5. A. O. Smith - Wikipedia

   en.wikipedia.org/wiki/A._O._Smith

   www.aosmith.com. A. O. Smith Corporation is an American manufacturer of both residential and commercial water heaters and boilers, and the largest manufacturer and marketer of water heaters in North America. It also supplies water treatment and water purification products in the Asian market. [6] The company has 27 locations worldwide ...

6. AOL Mail

   mail.aol.com

   You can find instant answers on our AOL Mail help page. Should you need additional assistance we have experts available around the clock at 800-730-2563.

7. Costco’s first membership price hike in 7 years just went ...

   www.aol.com/costco-first-membership-price-hike...

   The price of Costco’s premium “Executive Membership” also went up, by $10 to $130 a year. However, those members will soon be able to earn a maximum of $1,250 in rewards annually versus ...