COSTWAY 18,000 BTU Mini Split Air Conditioner, Energy Star

Bought the 12,000 btu in January for a renovated 460 sq ft garage apartment. It’s May and still going. Be sure and clean the filter frequently. Super quiet. Works like a champ! My a/c guy originally said to get Mr. Cool, but has changed his tune. Now prefers these a lot. Charged us $400 to put it in. We already had the electrical in place because my son’s an electrician. Very affordable home improvement. Simple to operate. We bought two more, one for the 385 sq ft master bedroom, same BTU’s cause it’s the west side of an older home, and a 9,000 BTU for our 160 sq foot music shed. That one arrived without a filter cover. Called Costway customer service. Kathy was friendly even while sick. They sent cover. Took about 10 days. Finally got to turn on the shed’s mini split. Then after a week it wasn’t cooling. A/C guy came and charged the line. May have a leak in the line set. Not sure yet. Should know before too long. They didn’t find one. He said Costway would send another unit if it stops cooling again. It might be in the blower area the a/c man said. Even with the inconvenience, it’s been relatively painless overall considering the cost of the mini splits. Highly recommend.

This has been the best investment! We have natural gas and this mini split. When temps got to freezing, we ran this and the wall furnace and it kept us warm. This summer has been nice and cool in an old house with very little insulation and old windows. It’s quiet, our electric bill has lowered, and it was easy for my husband to install. Just clean the filter weekly and make sure you keep the outside cleaned up and it’ll run perfect!

Works flawlessly, rapidly cools 20'X40' w/12' ceiling bedroom and maintains temp with no problem. I seldom run it below 73F but tested down to 69F. Texas hasn't gotten over a 100F yet this year, but not expecting it to struggle to maintain temp. Well packaged, well reinforced internally to prevent damage -- zero shipping damage -- this is extremely important. Purchased another brand (starts and ends with T) that was very poorly packaged/fell apart and missing parts, worried if it was going to work. Can't hear outside unit when in use, indoor unit could be a little quieter but still very quiet (I'm looking for absolute silence when sleeping). Came with everything you need to install. This is an unsolicited review -- I absolutely hate Vine reviews.

When I first got this mini split hooked up, I rushed here to write a glowing review. I was overly impressed with it, and how well it worked in my application. But that's where the good things stop. about a week later, the vanes that move side to side, stopped working. I looked into it, and the arm that moves them, came disconnected. I snapped them back together, but within the first couple movements, they disconnected again. Clearly an issue. Especially for something I didn't have very long. I contacted Cost Way through their Facebook page, and got a response from them. I explained the issue, and I was told to record a video, documenting the issue. So, I did. It was clear as day, that the cheap plastic arm, failed. Whomever I was speaking to, said they would make a ticket for the issue and someone would contact me on how to move forward. low and behold... Here I am a month later, and no one has contacted me. now, I'll be the first to admit that the unit still works. However. If there is ZERO support for something so minor... What do you think you will get when something major happens? After initial purchase, parts, labor to have it installed, it cost me just over $1800 bucks. After all that money spent, I have a unit that won't move air side to side, after one week. That's absurd. It just goes to show, that saving a few bucks isn't always the best route to take. I don't expect that I'll hear anything from them, and that right there tells me that once they have your money, they don't care. So, my advice is.... Stay away from them. For me, at least my unit still cools. But for the next person that has a much bigger issue... They will be in trouble. It's just not worth it to do business with a company that flat out doesn't care. They could have made minimal effort, corrected the issue.. And my glowing review would still be here. But now we know what happens when you have an issue.

Bought this in August of 2024. Have used it steadily for 1.5 years now. Cools and heats a 900sqft open shop. It does a good job. I have not had any issues with it what-so ever. Installation was not too hard. The Install direction are just okay - but I managed. My unit is 208-240V. For the cost - it was really a bargain. I would recommend to anyone that is a DIY type person. Having a HVAC tech install it would have really upped the affordability. So far - it has been a good unit. My thanks to the supplier/vendor for the reasonable price and quick shipping.

We were very disappointed in the delivery. There was some sort of mix up and it showed delivered when it was not. When we tried to contact them we could not get any help from the company or Amazon support. It was scheduled to be here on a Friday. Both boxes showed up Saturday evening late... very late. That said, we worked on the install in the evenings during the week and finished it on the morning of July 4th. The install was simple and straight forward. In face, it was easier than I imagined. All totaled, it took about 8 hours. That includes running a new 230volt circuit from the other side of the house. Actual A/C installation, including vacuum time was about 4 hours. The temp outside was approximately 91 degrees when we turned it on. The room temp was near 80 degrees. In less than 1 hour, the room temp was at 70 degrees. This unit cools very quickly. The remote control is very handy since we mounted it relatively high on the wall. The remote allows you to controll all of the functions easily without having to geylt up. The most impressive thing is how quiet this unit runs. It made less noise than our ceiling fan. Waaay quieter than a window unit. It made a huge difference. I give the unit five stars, the ease of installation five stars and the quietness of the unit five stars. However, I am not impressed with the customer service at all so I only gave them four stars. Things you should know: It does not come with a wall mount bracket. For the 12000 BTU, the outside unit only weighs 15 pounds so the small bracket will work fine. The lines come filled with an inert gas that you will release and then you must vacuum down to -1. This will require a vacuum pump and guages but it is easy and quick to do. You will need to install an electrical disconnect next to the unit if it is out of sight of the breaker. This disconnect can be useless or fuseable. I used a fuseable disconnect and 10A fuses as recommended in the manual. *Important* The unit comes recharged with freon. Once you pull the vacuum, you will have to open the valves (requires a number 5 metric Allen wrench) to allow the freon to circulate. *Note* The installation requires an adjustable wrench torque tool. Be sure to purchase one of these before hand to torque the flare fittings. They are not too expensive. The torque was more than I initially thought and I am happy that I purchased the tool. These fittings have to be fairly tight. Overall, the install is easy, the look is clean and they provide the materials to make it look professional. The unit, inside and out, is very quiet. I am not sure about the lifespan but we shall see. Install completed on July 4th 2025.

Have been using thru summer my area has been very humid what a great test working great and my install of this product was pretty easy if you have some knowledge of electrical and HVAC for vacuuming line set I installed a Mr cool diy 1st which is great also except no line set vacuuming which taught me how to install this item cost was a factor thanks costway

Cools well Low noise

Excellent product!!

I'm speaking on two units I just installed over the past two weeks so this isn't a full "reliability over time" review. As described, the units arrived in two boxes each (the indoor unit with it's bits in one box and the other bits in the outdoor box). Since the units are economically priced and the performance ratings seem quite good, and I only need heat in the shoulder seasons before I switch to full on wood heat (vs the $$$ electric forced air), they seemed to fit the bill. The heating comment is based on the notes that these will work down to -10C (14F). I don't know if that means the units will cease to work or if they will lose efficiency, time will tell. With all that, I decided to do the install myself. Here is where you learn about vacuum pumps, gauges and oil (another ~$200), electrical cutoffs, codes, etc. Did my research before I ordered and the work involved seemed to be straight forward, including running 12/2 wire and conduit (and a new breaker / etc). Following various install videos and a chat with an HVAC buddy of mine, I quickly determined the best approach and took it, and here's what I learned: - the 2" hole required is going to be a tight fit, so when wrapping with the vinyl, make it tight. If one goes larger than 2", note that the wall cap cover isn't going to fit (as it's 2") and the larger hole will require more filling. - the drain hole in the bottom of the outdoor unit is 25 mm, and if you cannot drain directly out, you will need some extras for it (note the size). I installed my units onto a wood deck so I didn't want the water just running wherever so I did this bit of extra, and here is where you need to know the size, which is in the manual - One has to remove all the plastic protective shipping covering from the indoor head to get the tape off, which has to be done to install the com wire. Make sure to take care when handling afterwards to not mark up the plastic. Once the connections were made, line sets torqued to spec, vacuumed for 15 minutes and vacuum leak checked via gauge, everything in place and electrics connected, only then I opened the valves to release the R32 gas and pressure checked all the fittings again for leaks ( with a 50/50 soapy water solution). Verifying no leaks, time to throw the power. LEDs lit up and with some batteries in the remote, I had the unit pumping out heat within minutes of turning on the main power. The units so far work as planned. The heat stability in the house is better than ever (haven't had to cool with them yet, may update after next summer). They are very quiet, even the outdoor units are near impossible to hear inside, and outside it's mostly a whirring fan sound. Now, why the support comment? One outdoor unit arrived in a damaged box, which I didn't notice until after the delivery guy was long gone. When I opened the box, I noticed that the unit had a considerable dent on the business end (connectors / electrics / control unit). I contacted Costway via the Amazon contact process, complete with explanation and photos of the box and the unit, and in less than 24 hours they had a new outdoor unit on it's way. If I could complain about anything it would be the nearly two weeks to wait for the new unit (same time to get the original one). However as I was not intending to install them right away (and I had one good unit to install currently) and Costway DID CHECK to see if the time to receive it was OK, and it was so I'm not faulting anyone. So far so good, and time will tell. At this stage I'm recommending my friends and family to consider these units as I now know what is involved for the install, and they work well (they are quiet and throws heat, cooling shouldn't be an issue, and reasonable to install with what's provided).

Tres satisfait, rapport qualité prix , et me donne un bon rendement

Very easily installed myself bought 2 24000 and one 12000 these are very good heat pumps

We got this installed in our new house, we have the same units in our apartment rentals and they work well! It says it can heat, but it has to be over 0 degrees in order for the heat to actually work. As for the AC it works perfectly, and we did buy it again! We had to have it installed, so I would plan that ahead and ask for pricing. The unit itself is at a great price!