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2. Heating seasonal performance factor - Wikipedia

   en.wikipedia.org/wiki/Heating_seasonal...

   HSPF is specifically used to measure the efficiency of air source heat pumps. HSPF is defined as the ratio of heat output (measured in BTUs) over the heating season to electricity used (measured in watt-hours). [1][2] It therefore has units of BTU/watt-hr. The higher the HSPF rating of a unit, the more energy efficient it is.

3. Seasonal energy efficiency ratio - Wikipedia

   en.wikipedia.org/wiki/Seasonal_energy_efficiency...

   Air-conditioner sizes are often given as "tons" of cooling, where 1 ton of cooling equals 12,000 BTU/h (3.5 kW). 1 ton of cooling equals the amount of power that needs to be applied continuously over a 24-hour period to melt 1 ton of ice. The annual cost of electric energy consumed by an air conditioner may be calculated as follows:

4. British thermal unit - Wikipedia

   en.wikipedia.org/wiki/British_thermal_unit

   The SI unit of power for heating and cooling systems is the watt. Btu per hour (Btu/h) is sometimes used in North America and the United Kingdom - the latter for air conditioning mainly, though "Btu/h" is sometimes abbreviated to just "Btu". [18] MBH—thousands of Btu per hour—is also common. [19] 1 W is approximately 3.412142 Btu/h [20]

5. Secret Service chief makes remarkable admission: We need a ...

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   The acting director of the U.S. Secret Service said the agency needs to undergo a complete overhaul of how it protects presidents — a remarkable admission following a second a pparent a ttempt ...

6. Why Bradley Whitford wasn’t at the ‘West Wing’ Emmys cast reunion

   www.aol.com/news/why-bradley-whitford-wasn-t...

   The cast of "West Wing" reunited at the 2024 Emmys to introduce the nominees and winner of the outstanding drama series, "Shōgun." Dulé Hill, Allison Janney, Janel Moloney, Richard Schiff ...

7. Video shows North Carolina home collapse into the Atlantic Ocean

   www.aol.com/news/video-shows-north-carolina-home...

   A dramatic video shared on Instagram shows a North Carolina home collapsing into the Atlantic Ocean on Friday. The home, in Rodanthe on Hatteras Island, is seen getting knocked off of its wooden ...