
In our new apartment we've only recently begun to use a new feature, one that we'd never encountered before, a Mr. Slim split-ductless AC system. Not totally attractive at first because these bulbous things are mounted high on the walls, we've been blown away lately at how damn powerful, efficient and quiet they are...

Made by Mitsubishi (Japan) and used widely in Europe and Asia, these units are newly showing up in the states and perfect for "new additions, retrofits, finished basements, and sunrooms" as the noisy condensing unit sits outside the home and only the air controller is inside. This means that when you turn it on, you hear NO MOTOR or anything, just the quiet flow of cool air. It's sort of weird.

We have one unit in each of the three rooms of our apartment (we're renters, the landlord installed these), and we use them in varying combinations with absolute glee, as they instantly pour cool air into each room and can easily be adjusted (with a remote) to regulate each room separately. This saves energy and allows us to keep our windows free of large noisy objects.
We tracked down all the information here: >> MrSlim.com

Had these in Japan - they work very well and you don't end up with ductwork that fills with dust or mould.
view bepsf's profile
Like you said, these are everywhere in Asia. I've always wondered why you don't see them more in the US.
In our house, the bedroom units were usually mounted over the bed. That way, you effectively cool the area that needs it the most (i.e. the bed while you sleep) and deter mosquitoes from biting you at night (i.e. they're blown away by the air flow).
view ami's profile
Maxwell--where is your roll down shade from? the one behind your carlisle drapes!
view laure's profile
Lots of them here in Montreal-they work great
view montreal modern's profile
ami--
We probably don't have more of them in the US since energy has been traditionally cheap, so running AC throughout the house has not been considered unnecessarily expensive.
Plus, I doubt many Americans will like the way these things look.
view bepsf's profile
These things practically saved my life during a summer in Japan last year!
view Ironsides's profile
We just got 3 to install in the 50 year old house we're renovating. It's a combo AC and heating unit. Hooray!
view JLEbean's profile
Marriott is starting to install these in newer hotels where appropriate: First floor rooms and fitness rooms. They have put day time motion sensors on them to keep them turned off when their is no activity in the room (I think they have to sense it every half - hour). At night they revert to the thermostat setting.
Point is - very quiet, effective and efficient.
view Chris - Annapolis's profile
@ bepsf...
they can hide behind custom cabinets with metal or wood grilles (so the units have somewhere to pump the air through)- they disappear right into bookshelves, cubbies, etc.
have used these in multiple high end residences in NYC
there's also another bonus- the condensors (that sit outside of the apartment/home) can be purchased with an extra coil for heating. thus giving the unit heating and cooling options.
as forced air can be very dry its best that you install a humidifier into the system as well.
view kpetuck's profile
Hey! we have these in our apartment in Madrid. I wasn't sure of the brand, but I just looked now. It's Mitsubishi, as well (don't know the model). Love it.
A lot of older buildings weren't build with central air, so it's usually these sorts of models that you'll see hanging off the window or tucked into those little mini-balconies. I gather that not all older buildings are allowed them, because the condensing unit outside the window can spoil the looks of a historic/vintage building.
view randomname's profile
We installed mini-splits in our Eichler last year. It was a last-minute, unbudgeted expense, but after spending July and August living in 100 degree temps with no AC we decided it was a necessity. We installed these units by LG:
http://www.lge.com/products/model/detail/as-h126pbl2.jhtml
We preferred the more boxy, slimmer look to the Mitsubishi models. They provide cooling and heating which is nice. We used the heating this winter to supplement our radiant floor heating system. We've just started using the AC as it has started getting warmer and it has been wonderful.
You can see some installation photos here:
http://redneckmodern.typepad.com/redneckmodern/2007/09/ac-install-day-.html
view casiep's profile
You can't install these easily, that's why we don't use them here. You have to have a *place* to put the outside unit. What apartment dweller has that kind of complete decision-making ability. Most landlords and coop boards would laugh at a tenant/member who inquired.
view kushkush's profile
I've got a similar-looking Fujitsu model in my living room and, as kushkush said, there is an outside unit. They also are essentially "space coolers" and not central air. Most places in the U.S. have central air so that all of the house can be covered.
I'm guessing these models may actually be less energy efficient on a square foot basis, but I could be wrong.
view Orchid64's profile
I'm a big fan of Mr. Slim. I enjoyed being able to turn on the AC from bed.
view charlenemcbride's profile
I have a similar one, but it is made by Samsung. I love it most of the time and it is perfect for my studio apartment. However, it has been broken since Tuesday, so I am not loving it right now. The A/C repair people seem to have no idea how it works!
view CarrieLouise's profile
Needs a cozy!
view quiltmaster's profile
Maxwell,
Where is the outdoor part of the unit in your apartment? I live in a landmark (NYC) building on the second floor and we can't do a "through the wall" a/c - odd b/c they're less ugly than window units. I wonder if the split unit would be OK.
Stacey
view SDH's profile
im so happy to hear that these are starting to appear in the us! these are everywhere in korea, and also europe (working as cooling/heating units)...its so much better than the hideous window a/c units that you see sticking out of peoples apartments year round (since there isnt enough closet space to store them!)
ive also long wondered why they hadnt become popular here...guess its because people are spoiled by central air...
view lemonyc's profile
How are the two units connected? Through the walls? I live in an apartment and doubt my landlord would install this for us... we have an itty bitty deck with barely enough room for 2 folding chairs. Are these easy to uninstall if say you move? Or are they kinda permanent?
view Lafferteezy's profile
I have one too. Makes all the difference in a 500SF flat.
It is quiet, throws off enough air and requires minimal maintenance. (If it is the same model), the filter is permanent and you just need to pull it out 1 -2x/year and clean it under running water. No trips to the hardware store trying to find the right size filter.
view suziwest7's profile