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As a Midwesterner, it is absolutely bonkers to me how common it appears to be for HVAC systems to get installed in attics.

Don't do that. Stop doing that! WTF?

That's bad enough, but then you go and run the ducts up there, too?

Y'all.

If you keep the system and the ducts within the space you're trying to heat and cool, you don't have to account for any losses, now, do ya?

Put the air handler in a utility closet. Run ducts /below/ the ceiling. Enclose with soffiting if you must.

The end.

@TechConnectify I guess we got lucky then. I'm currently set up in Chicago and our place has the HVAC in a closet in the unit. The vents are all on the ceiling tho

@ADisorderlyFashion Is this an apartment/condo building? That's pretty common.

The thing there is you still don't have losses, really, unless you're on the top floor. You just end up heating/cooling your neighbors a bit and decreasing their load.

ADisorderlyFashion

@TechConnectify Apartment, but very small. It's 4 units total split between 4 floors

@ADisorderlyFashion Are the vents level with the rest of the ceiling or are they boxed in?

I'm just curious - there are always exceptions!

@TechConnectify As far as I can tell, they're level with the ceiling

@ADisorderlyFashion Interesting. Hopefully the ducts themselves are insulated, then.

@TechConnectify I assume so since that heat wave where we broke into tripple digit fahrenheight (40c iirc) didn't kill me. I'll know for sure this coming Winter