DELLA Vario 9000 BTU Mini Split Air Conditioner Work with Alexa 19 SEER2 Cools Up to 400 Sq.Ft Energy Efficient Ductless Inverter System, Heat Pump Pre-Charged and 16.4ft Installation Kits

Very easy to install. We installed in the dining area which was an add on. It has a high ceiling and the heat seamed to get trapped keeping the area hot during the summer months in South Louisiana. Once installed there was an instant change and the area stayed cooled. We set the temperature to match the thermostat for the main home AC. Works great and highly recommend this product.Room Size is about 200 SFThe walls are white and it looks great in the room.Very quiet.

Quality is outstanding on these units. They are super quiet, This is now my 3rd one. These are very energy efficient, Easy to install, just install as directed, vacuum the lines and turn it on. It will heat and cool great. I have it on rooms around 350 square feet and it will freeze you out.

Third time turns out to be a charm. First system I purchased (different brand) was delivered without the inside unit. Amazon never located the missing carton so it had to be returned. Second system (also a different brand) appeared to be low on freon. When I opened the freon valves, no sound of moving freon and no change in pressure on my manifold gauge. Outside unit would not come on. I emailed the manufacturers customer support and the next morning submitted a request via their website. That was last week. Still no response from them. So, the second system was returned.I chose Della this last time because they advertise their customer support. The installation went exactly as it should have and the unit is working flawlessly so far. As others have said, it is quiet both inside and out. Easy to sleep with it running on quiet setting. It is fully featured with the swing capability for air flow both horizontally and vertically. Air is cold in cool mode and quite warm in heat mode. I especially like the app. If I wake up cool or hot in the middle of the night, I can adjust any settings without having to get out of bed and find the remote.As with other systems, installation requires a vacuum pump and manifold gauges or a vacuum gauge. (Lots of videos on YT for the entire process). My manifold gauges were old and designed for 134a in cars, so I purchase an inexpensive set and an inexpensive vacuum pump on Amazon. Both worked great. I also did not like the extra line length laying around outside, so I purchased a inexpensive flaring kit (on Amazon) and shortened the lines. It was easy to do and I am pleased with the end result. If you want to do the same and have no experience with copper tube flaring, suggest you cut the lines a bit longer than you need so that you can make more than one attempt. My first attempt was not good but second time was perfect (or close enough). Lots of videos on YT on how to properly flare a copper line. One thing I did not pick up on YT was the proper technique for reaming the line after cutting (with the proper tool). I was much too aggressive in my first attempt. Very little pressure is required.A finale humorous note: these Chinese companies seem to use the same printer for their instructions - with different covers for different brands. Both the second system and this Della had the exact same instructions - down to the grammatical errors.

Great product for an amazing price. This is my second purchase. We renovated 2 small houses. The first was completed a little over a year ago and the one I bought for it is still working perfectly. It's really quiet and it heats and cools the small 2 bed, 1 bath house really well. The remote is super simple to use and batteries last forever. It was really simple to install, but as recommended in the listing, a professional is needed for installation. Our house is in city limits and the city requires a permit for installation. Check with your city and get the appropriate permit before installation to save yourself the fines of getting the permit after the fact. If I end up needing to purchase another air conditioner, this will definitely be the first thing I consider.

Della had a good product but ruined it with senseless feature removals from their app. I bought two of these heat pumps for different rooms and enjoyed them quite a bit, until Della ruined both of them with """updates""" (really more like downgrades) to their app which I never had the opportunity to decline.You used to be able to set up two types of events: scheduled and tap-to-run. Scheduled could take place when specific conditions, like temperature or time of day, were met. Great feature right? I thought so too. But I guess Della didn't agree, because for some reason, they completely broke "tap-to-run" events.You used to be able to set your heat pump to blow upward, mostly up, ahead, mostly down, or straight down. You used to be able to set your heat pump to blow left, straight, right. Nice to have such finite control over your device right? I thought so too, but Della disagreed, and removed the ability to control it in any way besides altering toggle.You used to be able to set your heat pump to "Generator Mode" so it could consume either 30%, 50%, or 80% of its usual electricity. Great feature right, especially for those days where it's just a little warm and you want to save energy without running it on full-blast? I thought so too, but Della disagreed, and removed the ability to toggle generator mode.Those are just a few examples. The app had tons and tons of useful functionality. They removed it all and now literally your only options are "Oscillate Left and Right" and "Oscillate Up and Down". They completely ruined their own device because they couldn't stop themselves from over-simplifying their own app into uselessness.Buy from any other company. Preferably one that actually knows how to develop an app properly.