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Mr Cool DIY Mini Split (1 Year Review)
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- čas přidán 28. 01. 2024
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I installed one of these on the rear of a 34' motorhome. Previously, I was running the roof unit and a portable cooler that couldn't keep the vehicle cool when the temperature outside hit above about 85. The Mr. Cool, by itself was able to keep my motorhome at 70 degrees, while it was over 100 degrees outside. Plus, it cooled all the way to the front. Heating was awesome too. It kept a nice consistent temp all night. Both the inside and outside unit were very quiet. You could walk in during the middle of summer and not hear the units. Oh, I forgot to add that my electric bill for the RV spot dropped by over 1/2 when I installed this thing.
Those rv ac's are loud and don't work worth a crap. I don't know why these aren't standard equipment on some models.
I put one in my garage a couple years back. Love it. Worth every penny.
I did too in my pole barn. Works great.
I’m thinking about installing one in my garage as well. Did you notice a significant increase on your electric bill? I wonder how much it costs to run.
I purchased the PerfectAire DIY from HVAC Direct because it was quite a bit cheaper than Mr. Cool and still had a 1 year full and 7 year compressor warranty. I also researched the sizing guide very carefully and wish I had bought the smaller unit. The head unit is quite a bit smaller, and this thing freezes out the room in just a couple of minutes. There is no way I needed the 18,000.
its better to be to big in the winter though ..it will heat a lot better .I installed a 36k 4 zone and it works great even when its 20 below outside which shocked me..I am glad I oversized..Its a pioneer.
@@daveyboy8907@daveyboy8907 that's good advice. I wish I knew that because, in my particular application, I am only using it for AC. I did test it one time when it got down to 14 degrees here in Atlanta and it worked well.
These units are great! They are inverter drive units so they only consume the energy needed for the cooling or heating needed. You can replace any part of the system individually as long as it is still in production or available.
I'm planning on finishing off part of an attic or basement in a home I'm purchasing to make way for a studio, and considered putting one of these Mr. Cool systems in, so thanks for the 1-year review.
On a side note, many of these mini split systems have variable speed inverter motors that are logic controlled and they use multiple temperature inputs on indoor, outdoor, subcooling, superheat, set point, etc. so they can adjust blower and compressor speeds for max efficiency. The indoor header runs continuously to circulate air for a constant room temp reading that's accurate (vs. stagnant air inside the unit if the blower is off). The whole system is constantly calculating, even between cycles, and adjusts capacity based on that one key temperature (which is, of course, the only temperature the actual customer feels).
At 2:43 we can see you have coiled up the excess lines in a vertical manner. As mentioned in the installation manual, you MUST lay that coil horizontally! The compressor can be damaged when line set coils are not laid out properly. Great video!
I have two mr cool units, one is 24k and one is 12k. Only issue i have is finding people to work on it. I was having a frost issue on my 24k and could not get anyone out to service it. I ended up finding a recharge kit with sealant and added to the system. Working great again. I installed it in 2017.
My experience with Mr Cool is the line set and threaded connections failing and dumping out the charge. Once that happens, chances are the compressor is shot. Now gotta change out compressor with exact one or similar and probably new line set from Mr Cool or make one and then charging the unit to spec. Time labour parts to fix is higher compared to new unit with a better warranty along with installers warranty and the insurance covering it.
if you havent fixed the leaky connections, it will happen again. the gas is very bad for the environment.
@@ptso7580 Yes, all true, but hundreds of thousands of MrCool owners did NOT have any problems. My local HVAC company wants $7,000 just for the labor on a 12K minisplit install, a one day job. I can install my own for $3,000, about 1/3 the cost. Yes, the MrCool warranty is poor, but at least the MrCool lineup is affordable. For me, hiring the local HVAC company is out of the question, and we cannot be without air conditioning any longer.
The reason you can't find anyone to service it is becuase you installed it. If you want service you have to buy it and have it installed by a company, then they will service it.
just noticed the lineset, the way you have it looped like that creates a trap for oil. if you lay it flat it will be fine but im sure it was pre charged lines
According to mrcool the fan continues to run for 2 reasons. 1, constant motion is easier on the motor vs constant stop and starts. 2, the thermostat is in the air flow next to the coils and needs the air moving to get a proper temp reading
Howdy, everything looks pretty good, the only problem I foresee is the condenser on the ground. As that unit goes thru defrost, it sheds up to a gallon of water. And if the condenser is on the ground, the water has no place to drain. It will refreeze and rupture the coils. Hopefully you've put that up on a bracket at the mfg recommend hight for the snow line of the area your in. I've dealt with ruptured coils, it's a new condenser for the customer Everytime.
On my unit, different brand, as well as that one, they talk about the filters which are easy to change. The squirrel cage fan on my unit was full of fungus and stopped the air flow. I think people should know that it should also be looked at every 3-4 years...
Take a shot every time he says, "as you can see."
Just kidding. Great review.
Shots shots shots! 🥃 🤣 I have alot of word whiskers I’ve noticed that I didn’t seem to have before lol
@diyhvacguy You really did inspire me to get one for my basement.
I have electric baseboard heat down there and my power bill is through the roof.
Dumb question, but how much has your light bill increased since you had it?
the fans have to run continuous to keep the air space at a normal temperature throughout the living space.
I have a 2400 sq ft home, 3 bedrooms, 2 baths, family room, and kitchen area.
IF, I let the fan turn OFF, part of the house gets hot, other parts stay cold.
I keep the HVAC Fan in ON Mode all the time, it is a 2 speed fan, it idles down to a low speed, and the home stays at a consistent Temperature throughout the house.
Which unit did you buy?
Will you do power consumption video of both A/C and Heat? Thanks.
I thought that leaving the coils like that behind the condenser was not a good idea because oil will collect in the bottom of those lines.
Went back and looked for the install video, cant find it. Really interested in this unit so the 1 year review helps but would like to see the install video to see if I am able to do it.
So to put in perspective, I live next to the Mojave Desert and I have a 1400sq ft house. Only regret is not getting the 24000btu system the 18000btu system I have is fine but when i have a bunch of people over you can tell it doesn't keep up as well when its 115f+ outside. if you can always get the bigger system.
So you have one for the whole house?
@@johnnyboii47 yes
We love ours! Had it three years and it heats and cools our house perfectly. I have installed 4 units for other people since we got ours.
Thank you for following up on your previous videos. I really like your DIY instaruction videos. Please keep posting more!
Whenever my AC is on, I always have an oscillating fan to circulate air and making it more efficient.
I like how there’s a spool of line set coiled up behind the condenser lol
If the pipe is super hot, you may want to put a pipe insulator around it.
I have looked at a bunch of models and "manufacturers" and found that the basic single cassette systems are made by the same company. MR Cool says they are US made but they seem to source all of their parts from the company that makes all the others? I don't know but they look identical at that level. They seem to be a good product but I personally use primarily Senville. I do all my own repairs so it works out well for me but the majority of HVAC companies will not service them unless they installed them and most will not use Mr Cool or Senville and focus on Mitsubishi at 10 times the cost. DIY if you can but know that you may be replacing it if you start having issues outside of your warranty period because few will work on them.
MrCool is NOT U.S. made, even though the company hints that it is. Like most HVAC products, they come out of China. However, so do iPhones. So far, looking worldwide and not just in the U.S., consumers seem happy with Chinese HVAC products. They certainly are affordable.
I got some estimates on mini split installs and they were ridiculously high.
I can replace the Mr Cool 2 times and still not reach the point of the hvac installers price. The trades people, whatever one it is, is getting too greedy and too lazy. They only want easy clear-cut jobs and anything out of the ordinary they tend to avoid.
After a lot of reading, I decided to go with the "Pioneer" brand. Yes, it requires a vacuum pump, but that's a small price to pay for the better support and reliability.
The de-humidify and A/C functions are insane. It is super quiet. The heat, I probably need to upgrade to a two zone unit. I mounted my outdoor unit two feet off the ground on cement pylons..
I wish you had the model # in your description. And a link to your install video.
The always on fan design is two fold. First to recirculate air and second that fan running to make sure NO moisture builds on the coils so it can block any potential for mold.
Some nice rigs you got on that shelf 👀
Ok so it’s quiet and blows hot air. How about some performance testing for COP, cost vs gas furnace etc?
COP is listed on the manufacturers website. Google it.
Great info brother. trying to justify a 24k btu mitsubishi for my 870 sq ft pole barn, but it's looking like Mr Cool could be a better value.
If you can install it yourself... yes. Way cheaper. Just as good
How many watts does it use in turbo mode heating and cooling? I have a similar heat pump made locally here in egypt tho.. its a sharp 18k btu inverter ac its a t1 unit cuz the climate rarely gets over 38c and never below 7c.. electricity cuts for 2-3 hours a day and im looking at some options.. mainly car batteries and an inverter to run it
Can a garage and a house run off the same unit? They are not attached but within 10 feet of each other House is under 900 sq ft and garage is 700 sq ft
Great information for us consumers, thank you!
I'm in South LA. I am considering a mini split for my 20x20 garage. I will literally NEVER use this as a heater, need cold AC only. Given that I don't need the heat, which mini split would you say would be best for my needs? So many on the market, they all claim to be the best- kinda confusing.
I'm in SE Texas where's it's almost always hot. I have a 4,100 house with a lot of open space and my master bedroom is downstairs. It has its own covered porch with 2 windows and a door. The Mrs and I like it cold at night and are wondering if a window unit would be economical for keeping us cool at 71/72 while the rest of the house is 74/75. Any thoughts on that?
Check their bbb ratings, totally in the toilet. Seems like the senville or aciq is the way to go. I did a ducted setup from hvac direct, duel fuel. I didn't need a mini-split.
we have about 1700 sq ft. Do not expect one of these to cool your whole house. They are great helpers and very efficient.
you can buy systems that have one outside unit and up to 4 inside units which would help with that
Yea, we’ve done whole home mini split systems that work fantastic. I actually just did a video of a Daikin whole home mini split and it keeps the home comfortable all the time, can’t even hear the thing running.
What’s your opinion on LG or Mitsubishi mini splits ? 2 zone units
Does it also run the fan constantly when using the AC? You usually get a musty smell from ACs that run the fan when the compressor is off. That has been my experience anyways when using my RV's AC. The fan runs even when the compressor is off and then give out a musty/humid air. Luckily it has an option to turn off the fan when the compressor is off and that fixed it.
Yes all mrcool units run the fan constantly. They never shut off and it confuses a lot of people. Dumb I know..
mouldy smell comes from mould. you gotta clean it.
Dude, thanks for the update. And thanks for sharing info. You Da Bomb!
Our kitchen has no HVAC, as our house's HVAC is concentrated in the bedroom / bathroom part of the house and the windows won't support a window unit (very long shape). I was considering a minisplit for just the kitchen area, but an HVAC person I know talked me out of it, saying that the parts for the unit are so small that it would be tough to find someone to want to work on it.
Still thinking about it, though.
Really? He must be old school. They have a great warranty and a lot of companies work on them. But they are very reliable machines. And there are plenty of diy install videos should you choose to do it yourself 👍🏼 we also offer remote support over at Patreon.com/diyhvac if you need some help during your install!
Cheers
Fair warning. Those USB wifi dongles will become a vulnerability for your network if they are not already. We recently installed a 36k unit with 3 air exchangers and decided to not use any of the wifi dongles. Certainly, the firmware for the wifi dongles will not be updated to patch vulnerabilities. The R&D department doesn't have the resources to stay on top of exploits and vulnerabilities or even care about them. The good news is that each wifi dongle comes with an ESP-12F which you can write your own code for to secure them or even remove the ESP-12F package and use it for your own little projects.
Wow ,you are a pro yet you mounted the outdoor unit on the ground..It needs to be elevated because of snow..I installed mine on a stand that pioneer makes..You better keep it shoveled around it on heavy snow days.take care these really are nice units although I prefer pioneer inverters.
I have read that in some places the local code requires it be mounted to a concrete pad. Something I would not want to do!
@InvisibleCitizen it's actually easy you just use a hammer drill and a few tapcon screws or bolts..You don't want it moving or getting bumped because of the fear of a flared fitting leak..Although concrete here in the Midwest moves in the winter with expansion and contraction.
Mini Split vs Convector wall unit , which consumes the least amount of electricity ?
Great review. Do you notice a little water leaking from the condenser?
I thought of two more questions, replacement parts and warranty? Have you got any experience with either of these and did you go through HVAC Direct or straight to Mr Cool?
Yes on their remote they should use an RF signal so that the unit can be changed without having to have a direct unobstructed view to the remote control. Personally, I believe all remotes should use RF technology vs. infrared.
I dont really know anything about this so Im going to ask a stupid question. I dont understand what the difference is between a 120 and a 240 unit and why would I want one or the other?
If I had to guess what you mean is the volts. 120 volts is your standard outlet. 240 volts is what a electric stove/oven uses. Or a washer/dryer.
@@mekrobar7872 no, my question was about the topic of the video
stick a little angled mirror on that wall above the remote, cant beleive these arent RF by now, I guess most have wifi
I remember when the Mr. Cool units came out it stated online they were built by Carrier or ICP. Is this still true? Amazing the output air temp with it being so cold outside!
I believe Midea manufactures HVAC systems for MrCool. Midea is in Guangdong, China and is an immense company, perhaps the biggest appliance/HVAC company on the planet.
@@paulmaxwell8851 Interesting! Thanks
I'm pretty much done installing apps or any device that requires an internet connection to control. Will the app on this unit work without an internet connection?
As far as running on and on the newer refrigerators work this way, my fridge rarely turns off, I assume for the same reasons, IDK
Yes, inverter drive systems pretty much always run though at a very low percentage of total capacity. More efficient that way
we installed solar last year and oversized our system by 25% so I'm essentially giving away 2 to 3 MWs per year back to my utility. Adding some Tesla Powerwalls in our garage so along with our Tesla Model Y it makes sense to HEAT/COOL my garage and use some of the excess electricity we are producing and keeping our Tesla batteries in their HAPPY ZONE.
Great video. Do you think the 12,000 btu is large enough for a 2 car garage?
I’d like to know as well.
how much insulation do you have for your garage?
Don't really like the huge holes that have to be made in the wall. Was leaning toward this but after I saw this video, does not look like it.
What’s up with that big coil of hose outside
Wonder how thier furnaces are. Available via big box stores
DId you have a video of how to clean those coils?
No but I will this spring!
An extra 1000 bucks to have the refrigerant in the lines versus in the outdoor unit, makes no sense to me.
Mr.Cool doesn't need to be vacuumed and or pressure tested?
There are a lot of DIY units out there. My Della DIY 6000 btu was only 600 bucks and works like a champ.
Mr cool had a thing going with the AC mod box, making a cooler with window AC was great.
Rebranding an existing product trying to capitalize on just the name isnt good for customers.
* that remote looks eeeily similar to the della remote.
"as you can see"🤣🤣
Is this inverter?
A few questions, how big is you shop? what size is your unit? I think I heard 18k, may have been on the install video, just want to be sure. What SEER rating is your unit? Thanks, nice job.
It’s probably 4-500 sq ft. I believe this one is a 20 Seer 18k Mr Cool.
I definitely need 2 possibly 3 of those. How much would it cost with installation?
Depends on the units and Mr Cool is DIY only. Hence their price point. You may find an installer that will put them in for you but you will find that there is ZERO warranty from them at that point.
Does it require you to drill a hole to stick the wires inside like in this video?
Yes, the line set has to be connected to the outdoor condenser.
Does the unit work if you place it in AUTO mode and set a temp set point? Or do you suggest selecting either HEAT or COOL?
It will work in auto but they tend to be within a 5 to 7 degree temp swing. I tend to only use heat or cool to get a close temp match.
@@TheGuruOfNothing thanks for confirming. I’ve done the same. Am running it at 77F, Cool mode, fan speed Auto in my insulated garage. Have seen others run fan in low (constant) but I’ve not done that.
Great info. I clean my interior filters every month and vacuum the fins very gently. How often should you clean the coils on the outside unit?
Just as needed. Am awesome feature these have is once every couple cycles they have a cleaning mode where the fan spins in reverse and pushes debri out the same direction it came in at. This keeps them from getting build up on the coils.
I have a 4 bedroom house with living room and kitchen that are open to each other, I'm curious, if I had a mini split in each bed room and one for the living room/Kitchen, if it would be more efficient than my central gas furnace A/C Unit. Would 5 mini splits use more or less power then what I currently have. My house was built in the 1950's with very little insulation, but I did have new windows installed 15 years ago and the central furnace/AC was installed in 1995. What do you think?
The point of mini splits is to he able to put a heat pump unit in a single space that doesn't have ducting for full forced air system. If you have forced air already, you are better off to have someone spec a new, more efficient inverter drive type system f9r whole house. Multiple units gets expensive really fast and with that many of them, it will not be cost effective energy wise. Besides, whole house air flow is better than room by room unless you absolutely require big temp differences between rooms... a room for an aging person Tha needs it to be 80 while rest of house is 70, kind.of thing
Run your central hvac unit on “fan on” mode, and that will distribute the air generated by mini split throughout the house
@@TheGuruOfNothing Thank you!
Do you need 220v at the condenser ?
I am just finishing up installing a DIY 18K Blueridge from Alpine for my workshop. Yes, I needed to run 220V to the condenser.
Why wouldn't you cut down your copper pipe?
Probly used the pre-charged lineset! I dont like them,they look like a hack installed them.Only takes a couple minutes to cut and flare,and about 5 minutes to evacuate a small sytem like that. They are made for diyers that dont own the proper tools!
Yes this was to demonstrate a DIY job and one thing that makes mr cool different is their precharged linsets. So no vacuum pump is needed. I thought about recovering the refrigerant and making it the proper length. Maybe this spring :) cheers
I put the same one in back in August and mounted it about 2’ off the ground. Works great. Do you know if it has an internal heater on the outside unit, to keep ice accumulating on the inside of the housing? Just curious. Thanks.
They do not. They rely on a thermistor on the coil to determine ice buildup. I have found they they are hit and miss as to whether they will de-ice properly.
You don't know how an IR remote works?
Hey....quick question. My understanding is that the Mr. Cool systems are precharged making it very DIY friendly. I imagine a premium price will be paid for that benefit. In your opinion, is Mr. Cool a premium product over others regardless of the easier install, or are they all more or less equal quality? I have a friend who bought all the equipment to install another mini-split, and he said he would be happy to help me, but considering you obviously have all equipment to install any unit you wanted, but still did a Mr. Cool. You must have had a reason. Am I making any sense with my question?
The reason is that Mr. Cool sent this to me for free and I wanted to demonstrate a true DIy install.
They are not all the same. Mr. Cool has a patent on the precharged lineset, making them super easy to install. The only downside is you end up with some coiled near the unit and it’s a little unsightly. So yes I recommend the precharged mrcool diy systems. If you get another brand one, you’ll have to do the vacuum process and everything.
If you do order one make sure and use our discount code in the video description at hvacdirect.com to save 3%! Cheers
@@diyhvacguy The precharged idea seems to be a great idea however, since they manufacture them and ship them, I would prefer they offer different lengths so that the installations do not have excess lineset. Some installs might only need 5 feet so if I'm correct a typical purchase will have 10 feet of excess. That definitely wouldn't work for us due to the visual appeal.
japanese inverters are premium products in this market. that is all, there is no one else deserving that label.
That code no longer works ☹
How cold was it outside when you took this video? Just curious.
About 25 degrees
Does Mr. Cool manufacture their own or do they rebrand another make?
I think these are made by midea.
@@johnzach2057 Rebranded Gree.
@@Stevonoles1 Gree does NOT make the MrCool systems. Midea does. Gree and Midea are like Ford and Dodge, huge but completely different companies. Both out of China.
The fan goes really soon I bought 2 and they both needed fan after 2 years!!! too expensive and any other regular will do better!!!
Looking to install a unit with an (air handler) in my attic and connecting flex duct to ceiling defusers or registers (not blower units) my house is small under 900sqft
Ant suggestions would be appreciated
Where can you get parts?
Good luck with that. Easier to replace the whole thing. A lot less hassle to buy from a contractor who stocks the parts. Learned this the hard way.
Would not recommend as A HVAC Technician myself. Tech support is horrible, they are not designed to be repaired, and getting parts is a problem. To my knowledge they only offer a 5 year warranty. Get yourself a Fujitsu and a platinum installation team. Will get you a 12 year warranty on parts. Also highly recommend Mitsubishi.
Agreed, but what is the cost? A one ton MrCool installed by the homeowner vs a professionally installed Fujitsu or Mitsubishi? Here in Vancouver, B.C. Canada we had over 600 deaths due to extreme heat in the summer of 2022. Almost all were low-income seniors who could not afford air conditioning. The HVAC industry must stop charging such outrageous hourly rates so average folks can afford their services. Around here, doing a little mental arithmetic, and based on local installs I know of, I figure they're charging around $700 an hour.
Duh, it’s an infrared remote. It won’t work if it can’t see the unit.
When it’s in its holster thing, it SHOULD being as there is nothing between it and the unit. But I have to take it out and point it at it. Seems like you should be able to control it on the wall without having to do that but it’s not a big deal.
@@diyhvacguy mount it horizontally on the wall.
Doing coils of your line set as you did on the mr cool leaves a possibility of creating an oil trap, no?
I really appreciate all your videos and hope you know i am truely curious my friend.
Recently, i did that on a job and was told about my error or "error" =b
Ill be happy if not. Great content.
Your thumbnail says you don't like it.
Made ya look 🤣
Nice product but nobody wants to service them.
You’re right, it’s rare to find a professional company that will touch them. I have a 3 zone unit and had to learn and do it all myself. I had a leak recently and it was a journey / learning experience.
@@Johnnybgood8 You have to find a professional privately that does work on their own time.
True unless you spend the extra for something like a Mitsubishi. If you stick to the smaller 12,000 BTU running on 120v, costs $1,000 to replace the entire unit. The smaller units run off cheap generators too.
Good to know! Helps me greatly on my decision making.
They're not bad to service them whatsoever. Done it many times. They have some leak issues but usually due to improper installation or not using anything on threads
No body wants to work on a DIY UNIT’S.
A COMPANY DIDN'T INSTALL IT ,SO THEY DON'T KNOW IT'S INSTALLED RIGHT IS WHY.!!!
I literally have never walked up to a system and been like I won’t work on this because it’s diy. Any good tech can work on equipment regardless of who installed it.
Hard to work on them when the parts are not available, and no training on them is offered.
1. wait, you had this thing at 130 degrees , did i hear that right? 130 degrees???????????????
2. these do it yourself minisplits are not do it yourself for the average person. you need some skills.
Well, knowing your track record of urging homeowners to buy junk online, I would say ofcourse you would promote this junk. 😂
So basically you were paid to give this review...
That's true of the majority of CZcams, it's a moneymaker for anyone who will take the time to do the work and get a sponsor and/or promote their business.
This guy doesn't even answer questions.
Cut your lineset down that's a big problem all coiled up that's a oil trap learn yourself before you try to educate.
You can’t genius, maybe your the one that needs to learn
Use a flaring tool you tool of a genius.
@@David_Bellows flare tool genius
@@frydoggo you physically can yes, but it voids your warranty, and is not recommended by the manufacturer
@@frydoggo it’s also precharged with nitrogen so the second you cut it you’d ruin the seal and it would need to be put under vacuum to be used again