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2. Friedrich Air Conditioning - Wikipedia

   en.wikipedia.org/wiki/Friedrich_Air_Conditioning

   In 2012, the entry-level Uni-Fit (thru-the-wall units) and Chill (window units) lines of room air conditioners were introduced. The Uni-Fit and Chill were manufactured by LG and produced in China. However, both lines were revamped in 2019 and 2021, respectively, at which point TCL began to produce them. They are low-cost alternatives to the ...

3. Packaged terminal air conditioner - Wikipedia

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

   Packaged terminal air conditioner installed in a residential apartment. 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 ...

4. Heating, ventilation, and air conditioning - Wikipedia

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

   Central, "all-air" air-conditioning systems (or package systems) with a combined outdoor condenser/evaporator unit are often installed in North American residences, offices, and public buildings, but are difficult to retrofit (install in a building that was not designed to receive it) because of the bulky air ducts required. [32] (Minisplit ...

5. Air conditioning - Wikipedia

   en.wikipedia.org/wiki/Air_conditioning

   A portable system has an indoor unit on wheels connected to an outdoor unit via flexible pipes, similar to a permanently fixed installed unit (such as a ductless split air conditioner). Hose systems, which can be monoblock or air-to-air, are vented to the outside via air ducts.

6. Heating seasonal performance factor - Wikipedia

   en.wikipedia.org/wiki/Heating_seasonal...

   HSPF is specifically used to measure the efficiency of air source heat pumps. HSPF is defined as the ratio of heat output (measured in BTUs) over the heating season to electricity used (measured in watt-hours). [1] [2] It therefore has units of BTU/watt-hr. The higher the HSPF rating of a unit, the more energy efficient it is.

7. Split-system air conditioner - Wikipedia

   en.wikipedia.org/?title=Split-system_air...

   Retrieved from "https://en.wikipedia.org/w/index.php?title=Split-system_air_conditioner&oldid=752199363"