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  2. 7 Ways To Prep Your Car To Avoid Costly Repairs in 2025 - AOL

    www.aol.com/7-ways-prep-car-avoid-110138738.html

    Watch Out: I’m a Mechanic: 7 Car Models From 2025 To Avoid Buying. ... Get the real leak repaired before you end up with bigger problems. See More: 3 Trucks To Avoid Buying in 2025.

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

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

    "Look for unit covers with ventilation flaps or mesh panels to allow for proper air circulation and avoid the risk of mold," Woody says. "You also need a durable cover that’s made from UV-and ...

  4. Automotive air conditioning - Wikipedia

    en.wikipedia.org/wiki/Automotive_air_conditioning

    During the RACE Project from 1994 to 1997, financed by the EU with nearly 2 Million Euros, main producers of cars agreed to develop CO 2 car AC systems. See . The result was that car AC systems for CO 2 small cars are 45% more expensive than HFKW Units and that for the luxury class the additional cost was irrelevant. There is a final ...

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

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

    5 expert tips for making your air conditioning unit run better. Here’s what Smith recommends: 1. Annual maintenance: “Have a professional come check the controls to make sure the electricity ...

  6. Antifreeze - Wikipedia

    en.wikipedia.org/wiki/Antifreeze

    If engine coolant leaks, boils, or if the cooling system needs to be drained and refilled, the antifreeze's freeze protection will need to be considered. In other cases a vehicle may need to be operated in a colder environment, requiring more antifreeze and less water.

  7. Infiltration (HVAC) - Wikipedia

    en.wikipedia.org/wiki/Infiltration_(HVAC)

    The infiltration rate is the volumetric flow rate of outside air into a building, typically in cubic feet per minute (CFM) or liters per second (LPS). The air exchange rate, (I), is the number of interior volume air changes that occur per hour, and has units of 1/h. The air exchange rate is also known as air changes per hour (ACH).

  8. Leak detection - Wikipedia

    en.wikipedia.org/wiki/Leak_detection

    In order to analyse the concentration distribution present in the sensor tube, a pump pushes the column of air in the tube past a detection unit at a constant speed. The detector unit at the end of the sensor tube is equipped with gas sensors. Every increase in gas concentration results in a pronounced "leak peak". [6] [25] [26]

  9. Ductwork airtightness - Wikipedia

    en.wikipedia.org/wiki/Ductwork_airtightness

    However, attenuators, dampers, access panels, etc. are a part of the ductwork even if they have more functions than conveying the air and are therefore also referred to as technical ductwork products. Ductwork airtightness is the fundamental ductwork property that impacts the uncontrolled leakage of air through duct leaks.