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  2. Packaged terminal air conditioner - Wikipedia

    en.wikipedia.org/wiki/Packaged_terminal_air...

    A packaged terminal air conditioner (PTAC) is a type of self-contained heating and air conditioning system intended to be mounted through a wall. [1] The first practical semi-portable air conditioning unit invented by engineers at Chrysler Motors. It entered the market in 1935, and was designed to fit under a window like many modern PTACs. [2]

  3. Air conditioning - Wikipedia

    en.wikipedia.org/wiki/Air_conditioning

    In 1931, H.H. Schultz and J.Q. Sherman developed what would become the most common type of individual room air conditioner: one designed to sit on a window ledge. The units went on sale in 1932 at US$10,000 to $50,000 (the equivalent of $200,000 to $1,100,000 in 2023.) [ 20 ] A year later, the first air conditioning systems for cars were ...

  4. Heating, ventilation, and air conditioning - Wikipedia

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

    All modern air conditioning systems, even small window package units, are equipped with internal air filters. [citation needed] These are generally of a lightweight gauze-like material, and must be replaced or washed as conditions warrant. For example, a building in a high dust environment, or a home with furry pets, will need to have the ...

  5. This portable AC unit can make a room 20° colder in minutes

    www.aol.com/lifestyle/memorial-day-sale-portable...

    This portable AC cools a room in minutes — and it's on sale for Memorial Day ... This 8,000 BTU unit cools up to 175 square feet and includes a window installation kit along with a remote ...

  6. This portable AC makes a room 20° colder in minutes — and it ...

    www.aol.com/lifestyle/portable-ac-makes-room-20...

    Big enough to cool down 175 square feet, this 8,000 BTU unit comes with a hose and brackets to attach to a window. And just in case you need to move it, it has wheels so you can roll it into any ...

  7. Glossary of HVAC terms - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_HVAC_terms

    HVAC (heating, ventilation, and air conditioning) is a major sub discipline of mechanical engineering. The goal of HVAC design is to balance indoor environmental comfort with other factors such as installation cost, ease of maintenance, and energy efficiency. The discipline of HVAC includes a large number of specialized terms and acronyms, many ...

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