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  2. Ground Turkey vs Ground Beef: Which One's Healthier? - AOL

    www.aol.com/ground-turkey-vs-ground-beef...

    Going strictly by the numbers, 99% lean ground turkey has fewer calories and significantly less fat, saturated fat, sodium and cholesterol and around the same amount of protein as ground beef (and ...

  3. Heating, ventilation, and air conditioning - Wikipedia

    en.wikipedia.org/wiki/Heating,_ventilation,_and...

    Central, "all-air" air-conditioning systems (or package systems) with a combined outdoor condenser/evaporator unit are often installed in North American residences, offices, and public buildings, but are difficult to retrofit (install in a building that was not designed to receive it) because of the bulky air ducts required. [32] (Minisplit ...

  4. Heat recovery ventilation - Wikipedia

    en.wikipedia.org/wiki/Heat_recovery_ventilation

    Diagramatic operation of a thermal wheel Ljungström Air Preheater by Swedish engineer Fredrik Ljungström (1875–1964). A thermal wheel, also known as a rotary heat exchanger, or rotary air-to-air enthalpy wheel, energy recovery wheel, or heat recovery wheel, is a type of energy recovery heat exchanger positioned within the supply and exhaust air streams of air-handling units or rooftop ...

  5. 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:

  6. 9 Things You Should Know When Buying Ground Beef - AOL

    www.aol.com/9-things-know-eating-ground...

    Anything labeled ground beef will have the highest fat content, typically between 25% and 30%, because it's ground from inexpensive cuts, like brisket or shank. Ground chuck is slightly less fatty ...

  7. Air conditioning - Wikipedia

    en.wikipedia.org/wiki/Air_conditioning

    The efficiency of air conditioners is often rated by the seasonal energy efficiency ratio (SEER), which is defined by the Air Conditioning, Heating and Refrigeration Institute in its 2008 standard AHRI 210/240, Performance Rating of Unitary Air-Conditioning and Air-Source Heat Pump Equipment. [61]

  8. Pork vs. beef: Which is healthier? Dietitians reveal 3 ... - AOL

    www.aol.com/pork-vs-beef-healthier-dietitians...

    Lean ground beef can be another healthy option, she says. Choose at least 85% lean, according to the American Heart Association . You can also buy 90% lean or higher, Bannan says.

  9. Calorie - Wikipedia

    en.wikipedia.org/wiki/Calorie

    The amount of energy required to warm one gram of air-free water from 3.5 to 4.5 °C at standard atmospheric pressure. [b] 15 °C calorie: cal 15: ≈ 4.1855 J ≈ 0.003 9671 BTU ≈ 1.1626 × 10 −6 kW⋅h ≈ 2.6124 × 10 19 eV The amount of energy required to warm one gram of air-free water from 14.5 to 15.5 °C at standard atmospheric ...