I had a Mitsubishi Mr. Slim 30K BTU heat pump in my last house with 3 wall units that I installed myself. When I first fired it up I thought that I did something wrong because the compressor was so quiet, couldn't even hear it run with one unit on unless you were right up next to it. Even with 3 units on high it was whisper quiet. It was able to pull good heat at 25 degrees F outside, and there are newer units that go much lower. And yes, they do make units that are AC only. Overall I was extremely impressed with the variable speed technology and the unit's quality. Just remember that they have dust screens that need to be serviced regularly or the drains will clog with lint.
Energy Efficient Wall Mount AC Units
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Panasonic make excellent split inverter units. And extremely quiet compared to all others I heard before buying.I have recently installed them throughout the house and power savings are about 60% over the previous units.. and they were at retirement only 5 yrs old..
Despite Sunkings saying ALL window units are not efficient just shows his lack of knowledge on them.. Toshiba make inverter window units very close to split unit efficiency.
Carrier also make excellent split units but usually at about double the price of most other quality units..Comment
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Lots China made mini splits were good and afforadable. I got my 12000BTU 23 SEER for $800 which I think it has great value. It cool the room fast and very quiet.Attached FilesComment
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Edit. Rolled EER and SEER numbers.MSEE, PEComment
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In the USA market there is no such thing as an energy efficient Window Shaker. Non listed in EnergyStar.gov. Some might quality, but non has listed. 10 to 11.5 EER is as about as good as it gets with a Window Shaker.
But if the OP wants to know the 5 most efficient Window Shakers in the USA are found here. Don't strain your eyes but the highest EER of the 5 is 11.0 EER. Here is another list from 2015. 11.2 is the highest. Nothing efficient about 11.2. Meets the minimum government requirement for portable and window cooling of 9.8 EER. But well short of 13 which is the minimum requirement for central units where all Splits are located. Minimums here.MSEE, PEComment
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Since you didn't ask about a EER, this is about as good as it gets right now for high SEER splits. Mitsubishi MZ-FE09NA 9,000 BTU 26 SEER Ductless Mini Split Hyper Heat.Comment
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What about the newer model that's not 6 years old?
http://usa.mylinkdrive.com/uploads/d..._Submittal.pdfComment
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Maybe I will start a new thread for the question I have on this topic.
My mom's house is ~2800 square feet, and is located in San Diego East County. (It gets hot!) It has open beam cathedral ceilings. The roof has thick composition tiles with a layer of that insulation board that looks like styrofoam sandwiched between two layers of tin foil, basically.
If I put a mini-ductless split inverter system in her house (4 bedroom, 3 bath, 2 largish living rooms, dining room), how much additional electric usage can I expect to have per month/year ? I mean using the A/C liberally.
I anticipate going with a mid-range efficiency system, like in the 16 - 18 range just due to cost considerations. This is off the top of my head since the last time I looked at the systems online.
Can anyone give me an idea on this?
Thanks!Comment
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I have a fujitsu 12,000 btu 29.3 seer. This is the last model by fujitsu. I pay $1600 including installation. My setting is 74°F low fan. The first 2 hour use 1.2A to 1.7A, later use 0.6A to 0.8AComment
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Thank you Zeus.
Wow 29SEER ? ! ? That's amazing, considering the DIY units I'm looking at are only in the 14-15 range.
I was thinking I'd save some money by buying one for around $1000 and having my own contractor install it, but it sounds like you had yours done for not much more than that and probably got a better unit with a better install and a better warranty as well.
I see that you are in Puerto Rico, and I am wondering if this type of unit is common down there. Up here in the US proper, they are uncommon and the quotes for installation are exorbitant.
How did you get such specific readings on the current draw from your unit ? It is a single unit I take it ?
And thanks again for your reply !
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Thank you Zeus.
Wow 29SEER ? ! ? That's amazing, considering the DIY units I'm looking at are only in the 14-15 range.
I was thinking I'd save some money by buying one for around $1000 and having my own contractor install it, but it sounds like you had yours done for not much more than that and probably got a better unit with a better install and a better warranty as well.
I see that you are in Puerto Rico, and I am wondering if this type of unit is common down there. Up here in the US proper, they are uncommon and the quotes for installation are exorbitant.
How did you get such specific readings on the current draw from your unit ? It is a single unit I take it ?
And thanks again for your reply !
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