[jyl]

Just for fun, I asked Bard (Google’s AI)

“do I need a return in a room with a mini-split?”

and it replied

“No, you do not need a return in a room with a mini-split. Mini-splits work by drawing air from the room, cooling or heating it, and then returning it to the room. The air is not exhausted to the outside, so there is no need for a return. However, if you want to improve the air quality in the room, you can install an air purifier or humidifier.

Here are some of the benefits of not having a return in a room with a mini-split:

It saves space. A return takes up valuable space in a room. Without a return, you can use the space for other things, such as furniture or storage.
It is easier to install. A return requires more installation work than a mini-split without a return. This can make the installation more expensive.
It is more efficient. A mini-split without a return is more efficient than a mini-split with a return. This is because the air is not exhausted to the outside, so the mini-split does not have to work as hard to cool or heat the room.
If you are considering installing a mini-split, you should weigh the pros and cons of having a return. If you do not need a return, you can save money and space by installing a mini-split without a return.“

How do you think Bard did?