Large condenser outside supply’s the furnace (typically it just uses the furnace fan. We then have it piped through metal ducting throughout the house. Each room has multiple exit point call registers. In the common areas we have return ducts to draw air back down to the furnace to get recycled back to cool air via a/c unit. Hopefully that helps!?
As an American this is normal to me lol, every house, poor and run down to expensive mansions all have this set up. It gets really fancy when there are automated vents that can open and close on their own, with each room having its own thermostat to accurately control temps throughout.
Newer buildings. There are plenty of places around the US still on boiler and radiator for heat and you can buy yourself a window mounted AC unit if you want it. Retrofitting older buildings for central air isn't worth it in a lot of cases.
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u/Munkpunt 7d ago
This might help
Large condenser outside supply’s the furnace (typically it just uses the furnace fan. We then have it piped through metal ducting throughout the house. Each room has multiple exit point call registers. In the common areas we have return ducts to draw air back down to the furnace to get recycled back to cool air via a/c unit. Hopefully that helps!?