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  2. These Top-Rated Exhaust Fans Are Just What Your Musty ... - AOL

    www.aol.com/lifestyle/exhaust-fans-help-control...

    Exhaust fans keep fresh air circulating in your home. Say goodbye to steamy bathrooms, stuffy garages, or smoky kitchens with the best exhaust fans.

  3. Greenhouse - Wikipedia

    en.wikipedia.org/wiki/Greenhouse

    A greenhouse is a special structure that is designed to regulate the temperature and humidity of the environment inside. There are different types of greenhouses, but they all have large areas covered with transparent materials that let sunlight pass and block it as heat.

  4. Heating, ventilation, and air conditioning - Wikipedia

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

    Ventilating or ventilation (the "V" in HVAC) is the process of exchanging or replacing air in any space to provide high indoor air quality which involves temperature control, oxygen replenishment, and removal of moisture, odors, smoke, heat, dust, airborne bacteria, carbon dioxide, and other gases. Ventilation removes unpleasant smells and ...

  5. Passive cooling - Wikipedia

    en.wikipedia.org/wiki/Passive_cooling

    A traditional Iranian solar cooling design using a wind tower. Passive cooling is a building design approach that focuses on heat gain control and heat dissipation in a building in order to improve the indoor thermal comfort with low or no energy consumption. [1][2] This approach works either by preventing heat from entering the interior (heat ...

  6. Heat recovery ventilation - Wikipedia

    en.wikipedia.org/wiki/Heat_recovery_ventilation

    Heat recovery ventilation (HRV), also known as mechanical ventilation heat recovery (MVHR) is a ventilation system that recovers energy by operating between two air sources at different temperatures. It is used to reduce the heating and cooling demands of buildings. By recovering the residual heat in the exhaust gas, the fresh air introduced ...

  7. Cement kiln - Wikipedia

    en.wikipedia.org/wiki/Cement_kiln

    Exhaust fan speed or power: this controls gas flow, and the rate at which heat is drawn from the "hot end" of the system to the "cold end" In the case of precalciner kilns, further controls are available: Independent control of fuel to kiln and calciner; Independent fan controls where there are multiple preheater strings.

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