MRCOOL Advantage 5th Gen 9,000 BTU 21.5 SEER2 Ductless Mini Split Air Conditioner and Heat Pump - 115V

Works way better than any ac unit I ever gotten. Easy to install. Quiet as heck! My electric bill didnt spike up the fan speed was fast yet quiet. The size is perfect and energy efficient! Very good quality.

Really love this unit. It heats and cools our small space here in Florida and keeps the electric bill down too. The app controls it when away or at home although quirky. The remote control is great. It was fairly easy to install and doesn't take up much space. Lots of YouTube videos show you how to do it.You have an inside, small hang on the wall unit, and a small outside unit. Very quiet. We don't even know if it's running or not until we walk up to it and feel if air is blowing or not. Really can't hear it run.No problems with it and I would buy it again.

Update 1/11/21:Changing rating to 4 stars from 5.Heating is not nearly as efficient as cooling. Here in the Autin area it sometimes drops to the 30s and rarely to the 20s.I've noticed that when the temp falls below 40F it struggles to maintain 68 degrees in the garage.The garage has insulated doors with heated rooms above and on two sides.Yesterday, I noticed it went into defrost at least three times.All-in-all I am still happy, but I had hoped the heating function would have been a little better.Update 10/14: This thing is still going strong. Has run almost every day since June.This thing is awesome!!! Why did I wait so long?Quite as a mouse. Colder than a few hearts I know.Why I chose the Advantage unit over the DIY - Simply because you can't trim the line-set on the DIY. I called MR. Cool and told them I couldn't live with a bunch of coiled AC lines laying on the ground. They suggested the Advantage series. As long as you are comfortable cutting copper line, flaring copper line, running a vacuum and looking at a gauge, then you are set. There are a million YouTube videos showing you how to do it. The unit came with 16 feet of line-set and I only used 50 inches of it.I bought all parts on Amazon except for the conduit, main breaker, and 10 gauge power cable to the disconnect. I also had to purchase a short piece of 3.5" PVC as the supplied sleave for the line-set was too short for my wall.Below are the extra items I purchased on Amazon:3.5" hole saw for brick - tip - rent a nice roto hammer if you need to go through brick and don't own one. - https://www.amazon.com/gp/product/B07ZSRTFJH/ref=ppx_yo_dt_b_asin_title_o05_s00?ie=UTF8&psc=1Power Whiphttps://www.amazon.com/gp/product/B0756N989G/ref=ppx_yo_dt_b_asin_title_o07_s00?ie=UTF8&psc=1Disconnect -https://www.amazon.com/gp/product/B000LF42NK/ref=ppx_yo_dt_b_asin_title_o08_s00?ie=UTF8&psc=1410a Valve Core removal tool - I did not like this tool. Poor quality but ended up workinghttps://www.amazon.com/gp/product/B07MCWMQ97/ref=ppx_yo_dt_b_asin_title_o09_s00?ie=UTF8&psc=1Line-set cover -https://www.amazon.com/gp/product/B07SPL5RZD/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1Nylog -https://www.amazon.com/gp/product/B008HOSQQQ/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&psc=1Wall Mount for outdoor unit -https://www.amazon.com/gp/product/B00LDU9R2I/ref=ppx_yo_dt_b_asin_title_o02_s00?ie=UTF8&psc=1Delivery - Why buy at a big box hardware store when Amazon delivers to your door?Came on a lift-gate truck and they delivered it inside the garage. They took it off the pallet and took the pallet with them (which I preferred). The driver was extremely polite.Communication - They (the transport company) kept calling the number on the order, which was not my number. It was an Amazon number in San Antonio. I contacted the seller prior so I had the shipper number. I called the transport company and made arrangements for delivery. I gave them my direct number. However, the driver still had only the Amazon number. Luckily, he called dispatch and they texted me that he was on the way. Could have had the unit on Friday, but got it Monday. Regardless, I was fine with that.Lesson learned - contact the seller and get the transport company contact info and call them.Installation instructions -The manuals are written by someone who speaks English as a secondary language. Spell and grammar check were definitely not used on the install manual. I bought the 24K unit, but the manual is the same for all of them. On page 12 (fig 4.3) there is an itsey-bitsey, teeny-tiny diagram which is needed to mount the indoor unit bracket and locate the center of the hole needed for the line-set. I went online and downloaded the manual in PDF, blew up the diagram and printed it out full page. Note - there is no template with the Advantage Series.The diagram indicates that the vertical center-line for the hole is 151 mm from the center of the right leg of the bracket. There are no reference marks on the bracket to measure from. HOWEVER!!, there is stamped into the metal instructions to measure 120 mm from bracket edge to locate the center-line. So that is what I did.I then went to check my work and measured 151 mm from the center-line I just drew back to the bracket. It came no where near the center of the bracket. So I called tech support for a warm-and-fuzzy. He said to measure about 5 or so inches from edge of bracket. Since the diagram requires you to calculate the outside edge of the unit and then measure from this imaginary line, I asked him about the horizontal center-line for the hole using the bracket as the reference point and he said about an inch up from the bottom of the bracket. Since the hole is 3.5" in diameter I already knew I needed to be 1.75" up from the bottom of the bracket. I politely said goodbye and figured it out on my own.I prefer to work in metric since it is so much easier, but here are the measurements I ended up using to lovcat...

This item is NOT the Do-It-Yourself Model. Even though the guts are identical to the DIY, it takes more thought and effort to install. You need some special tools, like a vacuum pump, a good flare tool, tubing benders, and some beforehand practice with the flare tool to do it. If you take motors apart, build machinery from scratch, or are a plain dedicated do-yourselfer, you can do it. If you're not willing to invest the time studying up on it and practicing with the flare tool, you'd better forget it. Go with one of the DIY models.Mine works great. I have an 18,000 BTU model installed in a 700-square foot (insulated) garage.The temperature drop across it is about 38 degrees (if room air is 80F, output air will be about 42F). It has no problem at all cooling the place down quickly. It appears to be very smart, only putting out the temperature needed to maintain the setting. It may start out at 42, but after 20 minutes it might be doing 58. The fan is nearly silent.

I bought this because of a suggestion from a builder I work with frequently. He knew I like to do things myself. After investigating I decided on the 12k 240 volt system. I installed indoor and outdoor unit. I attempted to make the connections but stopped when I started to remove the caps on the inside unit, it started hissing, which I wasn’t expecting. I have a HVAC guy I know personally and requested one of his guys visit to complete the installation. The technician mentioned the hissing was just nitrogen in the unit. He completed the typical servicing they would do on mini splits, pressure test and pulling vacuum. I’ve run the system for a month and have no complaints. It works great and it’s super quiet. The WiFi module paperwork wasn’t updated for this new model but I figured it out.