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

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

    Here's how to properly protect your most valued investment.

  3. 5 things you should (and should not) do to make your AC unit ...

    www.aol.com/news/5-things-not-ac-unit-140622695.html

    With North Carolina heat breaking 90°F everyday this week, we looked for expert advice to keep our air conditioning units running in tip-top shape.

  4. How to prevent heat stroke and other heat-related emergencies

    www.aol.com/news/prevent-heat-stroke-other-heat...

    Heat-related illnesses are rising each summer. We can’t control the weather, but we can take these actions to lower the risk of health issues caused by higher temps. How to prevent heat stroke ...

  5. Excessive heat warning - Wikipedia

    en.wikipedia.org/wiki/Excessive_heat_warning

    An excessive heat warning is a notice issued by the National Weather Service of the United States within 12 hours of the heat index reaching one of two criteria levels. In most areas, a warning will be issued if there is a heat index of at least 105 °F (41 °C) for more than three hours per day for two consecutive days, or if the heat index is greater than 115 °F (46 °C) for any period of time.

  6. Heat exhaustion - Wikipedia

    en.wikipedia.org/wiki/Heat_exhaustion

    Heat exhaustion is a heat-related illness characterized by the body's inability to effectively cool itself, typically occurring in high ambient temperatures or during intense physical exertion. In heat exhaustion, core body temperature ranges from 37 °C to 40 °C (98.6 °F to 104 °F).

  7. 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]