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2. Should You Cover Your AC Unit In The Winter? Experts Explain

   www.aol.com/cover-ac-unit-winter-experts...

   This 'Hallmark movie coat' is perfect for winter — and it's over $40 off

3. Register (air and heating) - Wikipedia

   en.wikipedia.org/wiki/Register_(air_and_heating)

   During winter months, for example, an air conditioning register can be closed to prevent cold air from being pulled from the room. This allows the hot air to mix more completely with the cold air in the room, improving the efficiency of the HVAC system. [7] (The return should be efficient enough to draw off the cooler air.) [10] [11]

4. Evaporative cooler - Wikipedia

   en.wikipedia.org/wiki/Evaporative_cooler

   An evaporative cooler (also known as evaporative air conditioner, swamp cooler, swamp box, desert cooler and wet air cooler) is a device that cools air through the evaporation of water. Evaporative cooling differs from other air conditioning systems, which use vapor-compression or absorption refrigeration cycles.

5. Free cooling - Wikipedia

   en.wikipedia.org/wiki/Free_cooling

   In heating, ventilation, and air conditioning in winter months, large commercial buildings interior spaces may need cooling, even while perimeter spaces may need heating. [2] Free cooling is the production of chilled water without the use of a chiller , and can be used generally in the late fall, winter and early spring, in temperate zones . [ 3 ]

6. Does homeowners’ insurance cover winter weather damage? Here ...

   www.aol.com/does-homeowners-insurance-cover...

   Home & Garden. Lighter Side

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]