3 ms·

Canadian (Toronto) here, pretty much every air conditioner I've seen uses the same forced-air vent system as the furnace, and thus has outputs to every room of

• thrdbndndn 5y ago
  In my country (and most of East Asian countries I have been, like China, Japan, etc.) residential ACs are mostly in individual rooms (like this: https://moderndiplomacy.eu/wp-content/uploads/2020/08/air-condition-repair.jpg https://moderndiplomacy.eu/wp-content/uploads/2020/08/air-co... ) . You would have one for the living room, one for each bedroom, etc. Central HVAC exists, but 90%+ homes don't have them. It's not as convenient and comfortable (one common problem older houses have is that there is no AC in kitchen) but the energy cost difference compared to the norm in the North America is night and day (the houses are significantly smaller here too).
• stephen_g 5y ago
  From what I've read and seen in videos about it, that seems to be the case in much of the US as well. In Australia you can get ducted systems, but at the residential scale it's both more expensive and less efficient than split systems. So houses will often have larger split units (5 - 10kW heat/cool capacity) in the main living areas and then smaller ones (2.5 - 3.5kW capacity) in all the bedrooms. Sometimes you have a multi-head system with one outdoor compressor unit and two or three indoor units. This is even the case for large apartment buildings (often have a separate AC compressor for each unit), but most office and commercial buildings have central AC.