I would center it and make it part of a decor vignette. That will keep things balanced, even thought the units are pretty ugly. It would look worse if it was off to one side and your decor on the other.

Some items are for decor or appearance, others are for function. It will work better if centered on the wall. Its beauty is the HVAC function it performs, not its appearance.

If the wall color is close to the color of the unit it won't be as noticeable, and yes, sometimes function over form is the way to go. :-)

Were you planning to put some furniture against this wall? Perhaps you could use a floor-mounted unit and put furniture around it to make it less obvious. For example, you could install cabinetry around the Mitsubishi MFZ-KJ as long as it's at least 4" away and doesn't block the airflow upward. That unit is fairly small (e.g., 24" high) so you might be able to have a wall unit, console, or built-in that would completely disguise it.

Would a ceiling cassette unit be possible?

SR

My wall-mount Mitsubishi mini-split has an "eye" that follows me (or other occupants) around and heats/cools the air wherever I am. This is an energy efficiency feature. The air can go up, down, sideways.....

If you have a mini-split with the eye, you would want to plan accordingly. I would definitely not want to put a unit like that in any kind of cabinet; it would almost certainly block the air output. But it also should have clear sight lines around the room: plan for this.

I have never thought of my mini-split as ugly, and perhaps you will be admired for being "current" with global warming solutions. Display it, it talk about it, flaunt it: don't turn it into an elephant in the room.

Here are some ideas if looking at the mini split head bothers you.

5 Ways to Hide a Mini Split

I was concerned about the placement and looks of a walll unit so went with the floor unit. I couldn’t be happier. I t is much less obtrusive, doesn’t affect hanging art on the wall and it’s not in your face like a wall hung. Mine is Mitsubishi.

Why not on the same wall as the one you have now . I do not think thety can ever be a real design element . I assume there was no other choice . We have hot water heating with a boiler no way to add AC except mini split so we are not doing it we have 2 prtable AC units we use in the summer and then they go away.

@tangerinedoor: "My wall-mount Mitsubishi mini-split has an "eye" that follows me..."

I saw you sneaking those cookies last night.

The window unit you see now the builder put in temporary lease for a while they were working on drywall etc.

Americans are rookies when it comes to the aesthetics of mini-split heads, while accepting larger and arguably as unsightly old fashioned clunky radiators. Simply because they're more familiar.

The floor models olychik mentions do seem to be a bit more "normal" in appearance but perhaps again because of familiarity of shape and placement - like a wall furnace or the ubiquitous PTACs that are in most motel rooms.

A good friend who lives abroad bought a new home that has so-called "ductless" mini-split HVAC. They're really ducted but the ducts are small and run to disbursed small air handlers, each air handler taking care of several rooms only. The in-ceiling supply vents are small, round openings just a few inches in diameter and are in each room. It works great. I'm sure such an install is not cheap, this particular one is in an area without natural gas, so it was the most innocuous approach for new, up-market construction.

Surprise! We got dat here in the good ol' USA too!

The Unico System Supply Outlets are used to anchor the Supply Duct to the ceiling, floor, or wall and provide quiet delivery of high velocity air to the conditioned space. Unico round outlets come in both 2" and 2.5" and are available...The outlets also come in slotted (1/2"x8")...

I've heard of Unico, it has little or no presence in my area. I thought all it made was ducting and air handlers?

If a mini-split condenser is the operational heart of a Unico install, then it's not really an American product. The best ones are Japanese and Korean.

spacepak makes this type.

It's different than mini split --- it's a high velocity system that uses duct work.

Just another way of doing things. The ducts are small and slid thru the structure wall cavities.

The ducts are proprietary to the system, so you better have a local distributor. AFAIK they can be paired with normal HVAC condenser. But due to the nature of how this system operates a Bosch Inverter HP condenser wouldn't be a bad pairing option. (compressor modulation in 1% steps up and down)

From what I have read and heard about them the indoor air handlers are configured to the size you need. Similar in regards to what Bosch Inverters do.

BUT... without a local distributor? In an era of trying to find parts, that distributor relationship can't be taken for granted. (same thing for mini splits if you decide to go ductless, just buying something because it's cheap / posed to be better doesn't mean it is.) I doubt spacepak would be considered a cheap option. It's just another option...

They haven't made a product yet that doesn't require maintenance, repair and eventual replacement.

If you think you will make a distributor happy with buying one system every 20 years. guess again. This works by greasing hands and greasing them often.