Kaizen
Well-known member
They all ****. Biannual cleaning is several hours for the first time. I disassembled mine and cleaned outside. They make kits you can do it in place. Search you tube to see process.
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Top tier mini split manufacturers?
- Thread starter gatorgrabber
- Start date
They all ****. Biannual cleaning is several hours for the first time. I disassembled mine and cleaned outside. They make kits you can do it in place. Search you tube to see process.
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**** I typed out a long response and it disappeared! Short version, good minis modulate, start low and work up to needed btu. They also vary in btu produced, depending on manufacturer a 9k will put out as low as 2000 btu and as high as 11,000 btu. Had I understood this when buying my one 12k unit would be a 9k unit and if I had deep pockets my 2 9k units would be 6k. It would be a smaller unit but not undersized and far more efficient.
I live in FL, I live in a swamp, I threw in the towel on keeping humidity down.
There is a lot of misunderstanding when it comes to the operation of the multi head units. In most cases the best way to size them is to have more BTU's in the heads. The multi units are best went all are running -- the ideal is to keep the compressor it it's sweat spot. With singles -- since almost everybody oversizes (mistake mistake) they are only working in the best range 70-80% ... on design days. So you never see the max efficiencies.
No --- you don't want to buy a multi with extra space with the idea you will have a spot .... unless -- some how the base is met and the extra head is 6k. But-- even then I don't think it will fit the tables.
You don't want a multi where one head is always off.
No --- you don't want to buy a multi with extra space with the idea you will have a spot .... unless -- some how the base is met and the extra head is 6k. But-- even then I don't think it will fit the tables.
You don't want a multi where one head is always off.
A real grey area with lots of misunderstanding and confusion, had me baffled. I used 3 outside and inside units. I like the redundancy and line sets were a piece of cake, instead of snaking them all over the place.
There are places where the multi make the most sense -- and other times where they don't. I'm not in the redundant camp .... it's just more to go wrong.
Mitsubishi has tables where you can see the exact setup. Example: in one house I have 2x 12k ceiling units and 1 12k head unit on a 30k compressor. You can find that exact configuration and see the head output range. It's not the same as having 3 separate units.
It's better to have 3 heads running and the compressor at 65% .. vs having 3 units all running at 25%.
My new build requires three heads. It's a converted church and I ended up with three rooms that can't be handled with the ducted system. Unfortunately -- one is the kitchen ... the most logical combination with that units compressor is a loft far up in the building. The loft will not be used all the time. You don't link a unit that's going to be used all the time to one that is not unless you have to -- especially with a long line set to the one that will be off. I ended up with three units.
Whenever you see 3 heads of 12k connected to a 36 compressor .... it's typically because the installer did not do a load on the building and review the tables. Some wit when you see the compressor larger then the heads --- people think they have reserve. You don't ..
theoldwizard1
Well-known member
Bills Tools
Well-known member
Mitsubishi is the most reliable advoid lg. We use to be an lg dealer so many burned out compressors. Almost no problems with Mitsubishi, Fujitsu makes a solid unit. Stay away from the cheap units or you will just toss them in garbage when they break. Daiken is ok. I was working on a bunch of Daikens in a school. 75 indoor heads and 15 condensers. Yet I am a diamond dealer
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Seal all the windows and door and never go out !
That does not work either!
I don't know about Mitsu being the most reliable; it certainly has the most parts, and history being the first, but not necessarily reliable.
I just installed an LG Artcool (the black mirror finish) and the HVAC guy who I hired to install it who has been also doing this for over 20 years has not installed this level of LG before and noticed that the outside unit was all copper as opposed to mixed metal. He was impressed.
His only advice was to stay away from Mr. Cool.
So, I am not sure what an N of 1 means on either side, but wirecutter has a nice article on this:
www,nytimes,com/wirecutter/reviews/the-best-ductless-mini-split-air-conditioner/#how-wed-pick-a-brand
Stupid rule btw to not post links, especially when lurking for 6 years. (Yes, I run a much bigger automotive board, I get the logic, but still)
I just installed an LG Artcool (the black mirror finish) and the HVAC guy who I hired to install it who has been also doing this for over 20 years has not installed this level of LG before and noticed that the outside unit was all copper as opposed to mixed metal. He was impressed.
His only advice was to stay away from Mr. Cool.
So, I am not sure what an N of 1 means on either side, but wirecutter has a nice article on this:
www,nytimes,com/wirecutter/reviews/the-best-ductless-mini-split-air-conditioner/#how-wed-pick-a-brand
Stupid rule btw to not post links, especially when lurking for 6 years. (Yes, I run a much bigger automotive board, I get the logic, but still)
bruce_taylor
Member
looking at some of the rebranded units, have good reviews, anybody have good luck with any of the cheaper rebranded units?
56Mark
Well-known member
So who is the best online seller to buy these from? When I google reviews on a lot of the online places they are horrible as far as customer service if you have a problem. I am looking to install a 9K in my sunroom and a 12-18K in my basement shop. I recently installed a Blueridge 12K mini in a den in a house I am flipping. It has been running great for nearly a month now and really impressed with it, but was looking for a better brand for my house. I am not looking for a completely DIY system. I can install it, an HVAC tech friend will pull the vac and check and startup for the cost of a nice dinner.
Installation quality weighs over everything else.
You can buy the best unit out there and if the guy is a hack you will not be happy. You could buy some cheap, no name and have a quality install and it will work better than anything else out there.
You can buy the best unit out there and if the guy is a hack you will not be happy. You could buy some cheap, no name and have a quality install and it will work better than anything else out there.