easier to warm up than cool down imo
Clothes-wise sure, we put it 100W at rest, we need only capture that.
I really don’t get why you can still buy cooling-only air conditioners when any heat pump can work just as well in either direction
Every aircon should heat or cool the indoor space as required
Then it becomes easy to cool or warm at ~400% efficiency
As s far as window units go, one of the biggest losses is in insulation around the window.
Those that have window units do so because there’s really no alternative.
Would bi-directional window-mount ACs be effective heaters, given how much loss a window unit sees through drafts?