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  2. Passive ventilation - Wikipedia

    en.wikipedia.org/wiki/Passive_ventilation

    Typical modern mechanical ventilation systems use as little as 2000 J/m 3 for fan operation, and in cold weather they can recover much more energy than this in the form of heat transferred from waste exhaust air to fresh supply air using recuperators. Ventilation heat loss can be calculated as:

  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. Damper (flow) - Wikipedia

    en.wikipedia.org/wiki/Damper_(flow)

    In this way, applying power to the "open damper" terminal causes the motor to run until the damper is open while applying power at the "close damper" terminal causes the motor to run until the damper is closed. The motor is commonly powered from the same 24 volt AC power source that is used for the rest of the control system. This allows the ...

  5. Heated air inlet - Wikipedia

    en.wikipedia.org/wiki/Heated_air_inlet

    These vehicles have a MAF sensor, Air Temperature sensor, and when equipped with the 2.3L 4-cylinder, two spark-plugs per cylinder. This combination ensures the air is just warm enough to vaporize the droplets and does very noticeably improve performance and emissions at the same time in cold, northern winter weather. [citation needed]

  6. Glossary of HVAC terms - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_HVAC_terms

    A two-stage air conditioner is designed to operate on high and low settings during different weather conditions and seasons. The high setting is used during extreme weather, and the low setting is used during moderate weather. This type of air conditioner produces a balanced temperature and is in use for a longer period of time.

  7. Cold weather means staying safe. Tips for your home, yourself ...

    www.aol.com/news/cold-weather-means-staying-safe...

    Georgia has already had some freezing-cold days and more are on the way. Here are some tips for staying safe and warm at home or while traveling.

  8. Electric cars in winter: How cold weather affects EV range ...

    www.aol.com/electric-cars-winter-cold-weather...

    The most recent test, conducted in January 2024, found the HiPhi Z, a Chinese E, lost just 5.9 per cent of its advertised range when driven in cold weather, while the Polestar 2, Volvo C40 ...

  9. Heating, ventilation, and air conditioning - Wikipedia

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

    These are installed throughout a building to move air in or out of rooms. In the middle is a damper to open and close the vent to allow more or less air to enter the space. The control circuit in a household HVAC installation. The wires connecting to the blue terminal block on the upper-right of the board lead to the thermostat.