As always, you're SO inspiring with your "can do" attitude and lightheartedness. Thank you!

Why would anyone give this a thumbs down!?? Great job, April. I'm a female woodworker myself, albeit on a much, much smaller scale, and I find your videos articulate, to-the-point and very informative. Thank you and be blessed!

Honestly, this was great to see. My wife and I currently live in Japan and had to buy two units for our current home, but when we get back we were planning on installing them in the house we have stateside. Luckily, the ones here in Japan are powered from inside the house so we just have to plug them in. Great and informative video. Thank you!

I installed a Mr. Cool in my studio a couple of years ago....LOVE it! I have a 2 car detached garage that is half music studio and half workshop. I can open the door between the studio and workshop and it cools the workshop in the hot/humid SC summers.

Great job, April. Excellent install video showing off your carpentry, A/C and electrical skills. Absolutely beautiful shed. Inspiring. Keep up the great work.

Great job, looks awesome and love that shed! That’s the nicest ‘shed’ I’ve ever seen to just put ‘stuff’. The inspector bought into that! Don’t forget to strap down the electrical at least 12” from any connector. Great job!

LOVE women that can do things themselves. That's why I married to lady I am married to for 40 yrs. We are a TEAM and that comes in handy when you have a small farm too. Thanks for the info. and the GREAT video. All Information and no Fluff or BS. Good going girl, you ROCK.

You my dear are a TRUE MASTER CRAFTSMAN and delight to watch. As a contractor/carpenter...You are OUTSTANDING!

April, I’ve been watching your channel from the beginning. I can hardly believe you have almost 1 million subscribers! Your videos and the effort you put into all of them is to be envied. Thank you for all that you do for the hobby, the community and our hands-on daughters.

Perfect time to see the full install on this thanks April! It looks like a great unit and even thou it's snowing in Chicago today - haha - the heat is right around the corner and I need that humidity control for finishing! :)

You are certainly the prettiest electrician I've ever come across

Another great video! I have no idea how you are so productive, while maintaining your quality. One of the best channels on YT! Thank you!

On the cheap, you can buy aluminum gutter to cover the line set, all the same turns, ends and strapping available off the shelf. Great vid.

As it's Texas and glass bay door maybe consider low-e window tint. this will help on heat/sun you all have for most of the year. I worked on a high end condo unit and while working they came in with low-e glass tint immediate lowering of temp it was amazing, in the long run cheaper than electricity on A/C units. But good for all those brilliant solar radiation bright days, especially with a huge glass window like that bay door window, even so what a great little guest home. Sweet! blessings David

Just found you today! I'm in the process of building a "guest outbuilding" for the new main house right now so this is super helpful! Thanks for sharing the knowledge!!!

My wife and I have just been talking about installing one of these. It looks like you and your Mom nailed it pretty easily.

It's always a pleasure to see you make these projects so easy. Thank you for another great video!

You should block that metal cover where the line set comes out at the end with some small wire to prevent mice or rats getting into your living space. You did a nice job.

That shed! So nice!! - Keith Rucker happened to post a video installing a Mr. Cool unit in his shop - just went up the same day as yours. BUT - he DID have a hole saw large enough to drill the 3 1/2” hole. April! It just about kicked his butt trying to hold that thing as he drilled the holes through plywood on both inside and out. He’s a big strong guy, and it like to snap his wrists. I’m actually very glad you didn’t try to do the same! Thanks for sharing your vid, I really enjoy watching you work!

You’re a very capable young lady who really knows what is what. Excellent video with no wasted words and your smile makes it way better, overall. Two thumbs up!

Well. Did it work? You left us hanging!!!

April I'm a DIY and im amazed of all your wonderful work on this channel keep up the great work, but AC is a very simple thing to learn especially with smart person like you all you need is a vacuum pump, a set of cheap AC gages and if you want some cheap flaring tool to cut your pipes to the desired length, and I've installed over 10 units of split air conditioning with different sizes and brands and they all share the same basic principles.

That little shed/workout room is freaking bad ass!

When we install those instead of split systems or package units I consider it almost like a day off lol. Great job!

Damn, your mom did a hell of a job!! I’m referring to the many years past getting to this point... You da bomb young lady!! ✌️❤️😁

👍 "Another great video. I wish more of the others who make these style videos had your gift of video production and narrative skill."

Great job! Just an FYI you can unhook and move the unit without needing anything. Work in reverse and the lines are fine. I have moved units between my businesses in the past and have had no issues.

What a very "cool" video. Your shed is really nice. I love the roll-up door. If you have a guest with a motorcycle, they can just roll it inside! Love it!

Hope you enjoy it. I put in a mini-split in my workshop a few years ago and I love it!

HOLY COW!!! This is EXACTLY the video I needed! Was going to pay 5k to an installer. Thanks April!

Thank you! I just finished installing a 24k 3rd gen Mr. Cool in my workshop yesterday, and this video helped a lot. I would also recommend people check out Abom79's longer video for the extra details. And the manufacturer video is good too, but it's too fast and doesn't really show you enough information. What I appreciated about this video in particular was the problem of having the air blower mounting holes only go into one stud, and not properly distanced for the next stud. I'm grateful this video existed as a resource.

WOW that was easy ..good Job ..your Mom is pretty helpful..& its nice you let her help you..👍👍 from PGH PA.✌

You should look into installing a solar panel for that shed

Consider using nylog blue on the connections to prevent possible leaks. Also, worth mentioning that the passthrough hole should be angled downwards a bit so the condensate drains ok. Great video. Keep em coming.

That's the most beautiful shed/guest quarter I've ever seen. Would love to have that in my garden 👍

Excellent video April.I use PVC pipe (suitable diameter) cut in half or less depending on what I'm trying to hide, then pilot screw it to the walls and caulk to hide any imperfections. That always works and I don't have to purchase anything special or kiss some wholesalers butt for a purchase. Just some movie magic. Well done April. Thank you for the security tip.

this is AMAZING, saved me 3500$ and I got to do everything myself!

I would add a can of spray foam prior to capping the chase for plumbing through wall...avoid yellow jacket nests in future!!!

I installed the 18000 btu unit by myself. Four day project. Day 1 pour the slab. Day two hang the air handler. Day 3 hook up refrigerant lines and build the conduit box around it. Day 4 hook up electrical charge the lines check for leaks and test unit. Very impressed with results!

Didn't think about using the sleeve for the template until you were finished I bet. I would do something like that. You did very good anyway. 👍Oh and I have the same security. 👍

Outside hole should be angled slightly lower than inside hole for proper drainage.

Mr cool has since revamped the install to eliminate the awkwardness of fishing a 25 ft line set thru the wall by just including a separate sealed line set on Gen 3 models. They also offer a 16 ft linseed to reduce the need for excessive coiling. Gen3 units boost SEER rating to 20-22 from 16. One of the disadvantages of being an early adopter but you guys buying now have it pretty good.

The terrain and trees look a lot like what I see when I'm out around Helotes and Bandera, beautiful hill country and scenery, but tough land to build on. Great video.

We just put a Mr. Cool in our garage apt ourselves about the same time as you. We had electricians do the electric since it's a new build and part of the gig. It's August now and it's nasty dirty. It has an herbaceous smell. I'm now purchasing the whole cleaning system with the wacky water collection into a bucket. I'm amazed at how dirty it's gotten in such a short period of time.

Great video April. Tip 1, installing my AC, it was said to drill the hole from the inside to the outside in a small angle downwards. This way water will not enter the building, and any water present, will flow to the outside. Tip 2, Leave a space (30 cm or 12 inches) behind the outside unit, so it can draw cool(er) air. Ideal would be to place the outside unit so, that you need the whole line and don't have to store the extra behind thd unit. Tip 3, If possible place the outside so that it has shadow on the hottest time of the day. This makes the unit more efficient and cheaper (less power costs). Tip 4, Check with soapwater your connections for leaks (no bubbles). Tip 5, check manual, with some units you need to ooen the lines with an allen key (on outside unit).

Excellent video. I will try this mini split for sure. Just in time for the oppressive heat we get where I live. Nice work as always!! BTW, So glad your video has no music. DIY videos with music are intolerable for me! All too many DIY videos by OTHER youtubers think they are making music videos rather than DIY learning vids. I hate that!!

Wow!!! That’s is an amazing looking shed!!!! I’ve been looking for something like this for heating and cooling. Thanks for the great ideas! 👍🏼👍🏼👍🏼👍🏼

That's a very low power unit. That is really efficient. Might work with solar and battery setup but that depends on how often/you use it to be a good idea. Thanks for the post.

Ok, I have a lot of comments. Here in Greece, mini splits is the norm. Even if you try, you won't find a house without at least one, that being said, I have a bit of experience in these things. Let's go to the comments. All mini splits come with the refrigerant pre-charged. All the mini splits have that refrigerant stored in the outside unit as it is more robust than the inside. It really shocked me that yours has it in the inside unit. Second (and most important comment) is that having such a long coil of refrigerant lines between the indoor and outdoor unit, means GREAT losses in performance. Trust me, been there. Bring a professional and cut the lines to the minimum length that serves your needs. And if you bring a professional to shorten the lines, tell him to empty the lines with a vacuum pump before charging it again. Mini splits are very sensitive to moisture in the atmosphere and by leaving (even a little bit of) air inside the refrigerant loop, you drop the AC's performance and you are causing it's insides to rot that much quicker due to the moisture. To sum up, remember two important things for installing mini splits, keep the refrigerant lines as short as possible and empty the lines with a vacuum pump to ensure no moisture gets trapped inside. Other than that, greeting from Greece, love your videos and I watch you all the time.

NEVER coil the extra line set in a vertical loop, it will cause an oil trap that will hold the compressor oil and can damage the compressor. Coil must be looped horizontally to allow the oil to easier return to the compressor.

Great job - it is that simple - installed one myself last year

Thanks for sharing this video ,April ! Great video and installation of the Mr Cool split. Thanks again

April, I need to know, how is that unit holding up? How is the maintenance on it? Tka for the video

I'd be really interested to know how the system has held up over the year and any pain points you've learned from?

Cut the lines, flare connections and connect the tubing , pressurize with dry nitro, check for leaks, vacuum, then open refrigerant valves. Cool DIY video!

Great work! Thanks for taking the time to make, film, edit and share.

I recommend you coil the lineset in the alcove where your fuse box is located. That way it is not restricting airflow in the back of the unit. It's too bad you didn't make a hole for the lineset to go thru the wall where the fuse box is.

Just so you know, the line can be cut to length, you just need a flare tool. The refrigerant is kept in the compressor.

I put one of these in my garage last year. Install was not too bad. Honestly one of the best decisions I have made. Works so well. Quiet, efficient and effective. I ended up cutting my extra long copper tubing. Although I am not sure of the validity of this but I read somewhere that looping the extra length is not the best for the system. Probably doesn’t really matter.

Best install of a mini split that answered all my questions.

Nicely done. But no insulation in those walls?

I work for a wholesale company that sells ductless units. One of the most important things that you have overlooked is a surge protector. That condenser has 3 computer boards in it and if it takes a power surge, say from a generator coming on or lightning, you will probably need to repair that unit. Also, if you bought that unit online when you try to warranty a part you will have to go through the online company for the warranty, unless you can find a very nice local mechanic willing to help you out.

I'm so glad that someone has come up with a DIY mini split, because simply put, I love to Do Things Myself! Awesome video April, it makes me consider buying one of these units myself. Thanks for the Mr. Cool links. That makes it so much easier to explore my options.

Thank you for taking the time and making this video 👍🙏❤️

That's quite a shed. The first pictures looked more like an architect's rendering than a real picture! Nice job.

I would get spray in foam insulation or blow in insulation in your walls as they did not seem to have any insulation at all!

Excellent. You explained the whole process simple enough for non-techies to understand. Thank you!

You are so cool. Love the way you did everything on your own.

I installed one of these (24k model) last fall, love it! Because its a heat pump too, it kept the garage warm the winter even in temps of 15 degrees Fahrenheit. I found the 24k to be a perfect size for a well insulated 24 x 25 garage.

Looking good. The mini split and you.

Thanks April !! I have my 30x30 garage with a un-finished attic space that will be an extension of my shop from the main floor (once the attic space is finished). I have been looking for options for cooling it during our hot Minnesota Summers. Thanks again, this was helpful.

Very nice video! I'm too particular to have those lines coiled up behind the unit but I get the idea. Nice job!

Get a garden hose wall hanger thing and install it above the unit to keep the lines away from the heat exchange. They look like a V and you just attach with screws.

Best diy project that I have done! They are awesome

Easy, breezy, beautiful! Thank you.

Hi you are amazing I feel happy when I see you working

I seen thst shed in a magizine of family handyman

I wonder if Mr. Cool could find it in their economics to sell variable length line sets? 10'-15'-20, DIY is awesome! even better if the final solution makes it hard to tell.

those split units work awesome.

That looked like a real fun project.

With that much excess line provided , I could potentially mount the outside unit in another zip code :)

That unit needs all the air flow in the back, I recommend you to have a professional to cut the Excess tubing.....that is Hot Air that touches your excess tubing.....We uses does units in Central America, everywhere.

Great Job! I've watched 4-5 of your DIY videos and your amazing!

I put one of them in down in Kentucky in a attic remodel and it keeps it super cold up there during the summer it truly is an amazing air conditioner I would highly recommend it to anyone

Amazing, usually stud finders point to me... great diy AC install. I’m buying the same unit for my cabin...

I think you need a screen at the end of the drain line to keep bugs and bees out...

Great Video. I did not know a DIY version was available. I plan to install one in my shop. Good info. Love the Sawmill TOO...

Hi April..... It would be beneficial for you to put some solar reflective film on your garage door/glass panes, it will keep it a lot cooler and less work for the A/C......Keep up the great vids.

Just make sure that the compressor unit is mounted on rubber pads and bolted down so it can't 'walk away' due to vibration!!

Every set of instructions I have ever seen tells you to cut the outside hole lower than the inside hole to allow for a downward pitch in the condensate drain line.

Una instalación práctica vs prolijidad profesional. Espero que perfecciones otras técnicas de instalaciones, un gran abrazo!

Mini splits are the norm in Spain where I live off grid now and most houses use them. For some DIY models there is a choice of refrigerant line length. Yours is very long and this will make the unit very inefficient. Of course it also depends on the insulation your shed has but with so much glass that unit will be working overtime! Great vid as usual April! Love everything you do! Come visit Spain and bring your tools!

Did you mount the outside unit to the concrete?

Is it possible to cut the excess off? Store it more neatly? Im a neat freak and wouldn’t be satisfied with the excess just bunched up like that.

Great Job Hen ! lol, gave me the bottle to give it a go haha. Only thing no Mr Coolmunits in good ole Scotland ! Lovely Wee Set up there, God Bless xx

Thanks for the instructions.

There is enough tubing to put the Outdoor Unit in Canada to keep it cooler hehehehe

Installation by the professional will likely quadruple the cost of that a/c. But you still have know or ask for proper way to do it.

Great Job . You are right sometimes the Hvac companies don't wannna sell the unlicensed person, I used a 4" down spout or leader I purchased from home depot.

Nice and neatly done. Great job April.