Most apartment buildings with HVAC have shared air intake and shared exhaust vents. So if my neighbor is running his A/C then he is actively exhausting hot air from his place which travels through the exhaust vents, some of it gets exhausted out the building and some of it gets recirculated. But the exhaust vents are shared, so if I’m not running my A/C then some of his hot air can end up in my place. In practice, is this a measurable effect?
In: Technology
I’m a little confused by your question, since if you have shared HVAC then, by definition, your neighbor does have “his A/C”…there’s just the building’s AC.
An apartment-HVAC should have a great big condenser on the roof (possibly in the alley out back) where the AC is dumping heat. If your neighbor has selected a colder temperature than you then he’s getting more cool air from the central AC but the heat rejection is happening at the AC condenser outside the building. Other than the fact that we’re all sharing the same atmosphere, none of “his hot air” should be coming back into your apartment.
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