• elucubra@sopuli.xyz
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      2 days ago

      OK, let me geek out for a bit:

      A/C is air conditioning. One way. They actually extract heat, not pump cold in.

      All mentioned systems are heat pumps.

      Systems that can pump in two directions are inverter reversible systems. Many, if not most modern AC systems are inverter reversible heat pumps. “Aerothermal” in English is called “Air source heat pump”.

      A heat pump is called an air source heat pump when the quantity of heat (or cold) moves exceeds the energy expended, so if you get 2 or more units of heat (or cold) per unit of energy, it’s considered “Aerothermal”, because it’s extracting that heat, in either direction, more efficiently than just burning or consuming the energy source, like gas, or electricity.

      Many air to air split systems today are “aerothermal”, and are not more expensive than traditional split A/C units. Look for SCOP values higher than 4. Some of the better ones, from top manufacturers like Mitsubishi, Daikin, LG, etc. have better than 5 SCOP. These are often considered renewable equivalent, and in many countries qualify for incentives and rebates.

      Obligatory Technology Connections video: https://www.youtube.com/watch?v=MFEHFsO-XSI

      • faintwhenfree@lemmus.org
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        2 days ago

        The phrase air conditioning doesn’t mean, one way. More common understood meaning is just cooling. However by definition conditioning to air from its existing condition to a more suitable condition is conditioning. No heating or cooling specified.

        Japan/Korea aircon means something that can do both. UK, US, other commonwealth. AC means just cooling.

      • ExLisper@lemmy.curiana.net
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        2 days ago

        Thanks, that clarified a lot of things for me. I checked the stats on my Panasonic heat pump and for the last 12 months its average COP was ~4.5. So pretty good.

    • Taleya@aussie.zone
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      1 day ago

      In Australian it’s called a “reverse cycle” (one that heats and cools). our uses a heat pump as well. Heat pump hot water systems are also a thing, the name “aerothermics” for them is awesome.

    • inari@piefed.zipOP
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      2 days ago

      That’s correct. A “heat pump” is just an AC that goes both ways. They’re the most common kind of AC here in Japan too, and are just referred to as “aircons”.

      • elucubra@sopuli.xyz
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        2 days ago

        Not really. All are heat pumps. if they go both ways they are inverter reversible heat pumps.

        • DirtPuddleMisfortune@feddit.org
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          2 days ago

          This is not correct. An inverter heat pump can adjust its output, unlike an on-off heat pump. The latter always runs at full power and regulates its output by constantly turning on and off.

    • Gonzako@lemmy.world
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      2 days ago

      Tu andas por la península? Aquí en las islas el aire acondicionado es menos común