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  2. Weird sounds and smells in your home you should never ignore

    www.aol.com/weird-sounds-smells-home-never...

    The plastics, polymer and rubbers used to insulate appliances, fixtures and electrical outlets can emit a fishy smell when they heat up. If your house suddenly smells like low tide, start sniffing ...

  3. 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]

  4. Heat recovery ventilation - Wikipedia

    en.wikipedia.org/wiki/Heat_recovery_ventilation

    Diagramatic operation of a thermal wheel Ljungström air preheater by Swedish engineer Fredrik Ljungström (1875–1964). A thermal wheel, also known as a rotary heat exchanger, or rotary air-to-air enthalpy wheel, energy recovery wheel, or heat recovery wheel, is a type of energy recovery heat exchanger positioned within the supply and exhaust air streams of air-handling units or rooftop ...

  5. This is the seriously disgusting reason your air conditioner ...

    www.aol.com/article/lifestyle/2019/07/19/this-is...

    If you don’t keep them clean, they can make the air in your house extremely stinky. Skip to main content. 24/7 Help. For premium support please call: 800-290-4726 more ways to ...

  6. HVAC control system - Wikipedia

    en.wikipedia.org/wiki/HVAC_control_system

    HVAC (Heating, Ventilation and Air Conditioning) equipment needs a control system to regulate the operation of a heating and/or air conditioning system. [1] Usually a sensing device is used to compare the actual state (e.g. temperature) with a target state. Then the control system draws a conclusion what action has to be taken (e.g. start the ...

  7. Outgassing - Wikipedia

    en.wikipedia.org/wiki/Outgassing

    Outgassing (sometimes called offgassing, particularly when in reference to indoor air quality) is the release of a gas that was dissolved, trapped, frozen, or absorbed in some material. [1] Outgassing can include sublimation and evaporation (which are phase transitions of a substance into a gas), as well as desorption , seepage from cracks or ...

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  9. Stack effect - Wikipedia

    en.wikipedia.org/wiki/Stack_effect

    There is a pressure difference between the outside air and the air inside the building caused by the difference in temperature between the outside air and the inside air. That pressure difference ( ΔP ) is the driving force for the stack effect and it can be calculated with the equations presented below.