12,000 BTU Smart Inverter Air Conditioner Window Unit with Heat and Dehumidifier – Cools up to 550 Sq. Ft., Energy Star Rated, Quiet Operation, Electronic Controls, Remote Control, White

This is not the top-rated U-shaped Midea model, which is in low supply, one of which I bought in 2023. (So I now have both the U-shaped and the traditionally shaped 12,000 BTU Midea AC window units.) Background: 2 years ago I installed the U-shaped model in the kitchen of our 1910 Sears & Roebuck kit house, a fixer upper, while we lived on just the first floor (600 sqft), and it kept the entire first floor ~72 or cooler (depending on setting) nearly all the time. May have been a day or two it struggled to keep up, but we felt no need for a second unit for the 1st floor. It was SUPER quiet; as quiet as the fridge or ceiling fan, unless cranked up, and most of the sound was the fan. So the U-shaped model was what I wanted for the second floor, but couldn't find it anywhere (within $300 of what I paid before). We finally moved into the second floor bedrooms (last fall), so (mid May) we bought this traditional window box unit (not U-shape), but same capacity hoping to similarly service the 600 sqft second floor. (Yes the second floor was carefully reinsulated during the re-do, and it has efficient vinyl clad windows and thermal blinds. Only about 16' of insulation above ceiling, will see if we need more for summer, but it was fine for winter.) This unit included the heat inverter for heating at temps >41 degrees. It WAS significantly simpler & easier to install than the U-shape as there was no need for an external bracket and bracing, and less complex weather stripping. In retrospect, this model may have been better for the second floor since we could easily do the entire installation from the inside of the house. Took a second pair of hands for the 30 seconds of setting the unit in place in the opening (I'm 71). While this 12,000 BTU unit is perhaps not quite as quiet as the U-shaped 12,000 unit, it is comfortably quiet. We still haven't hit the peak heat of summer, but it seems as though it will keep the entire upstairs sleep-ably cool at night at least so long as the doors are left open. For now it cools fine in the heat of the day up to mid 80's and perhaps more (it hasn't yet exceeded 86 outside). We installed the unit in the SSE facing largest room, and it kicks on about when I wake and morning sun starts to warm my room, and during the day is keeping the upstairs from ever getting within 15 degrees of the daytime summer temps upstairs the past two summers. The heat inverter was nice to use without turning on the furnace for a few nights this past week where it dropped from 80's back to 40's in Madison WI. You many want to supplement the adhesive weather stripping for the two slide out panels, where they abut the inside of the window opening and leave a fine crack (I haven't yet sealed it; the crack is too fine for insects so far), and at a couple places under the unit that did need the provided weather-stripping. I think this is a good buy, assuming it endures. These two units (<$1000 total, 2 hours installation total) appear to suffice in place of the 3 quotes of $10,000 - $15,000 for contractor installed central air in this old radiant hot water heated house with no prior air duct engineering. (Can send my kid to school another year instead!)

After central heating and air went completely out of service last summer, I have been forced to look for alternatives because replacing the outrageously expensive central A/C is financially impossible at the moment. So, I have bought Frigidaire, Soleus and now Midea window heat pumps/AC to match or exceed BTU rating of broken central unit. The Frigidaire is the normal (non-inverter) style compressor heat pump. Works FANTASTIC even in sub-zero temps with defrost cycles but is really loud. The Soleus is an inverter heat pump and VERY quiet. It also works extremely well in very cold temps with excellent defrost function. The Midea is extremely quiet would be easily the best of all three but for one fatal flaw. No defrost cycle. It will not work below 41 degrees F outside. If your outside temps never go below 41 degrees overnight in the winter, you may not need a heater at all. This unit would be perfect and by FAR the best window heater/AC on the market if it could only defrost. What were they thinking? They snatched defeat from the jaws of victory here. Update: Sometime this winter Midea did a software update on this unit over WiFi since I have connected to the internet. They MUST have installed a defrost cycle. Because one day it just started defrosting when it was FAR below 40 degrees F. It formerly would give a low temp error code. This means it was software limited to not operate below 40. But now, it worked great even in the mid 20 degree F nights I had this winter. So, I bought another one while I could. Update#2. I did get another one as stated above. The newer one has different firmware, that I cannot update/change from the app for some reason, than the other one and DOES NOT work as well when it goes below 40 degrees F. So it is definitely something about the firmware involved. I have two identical units in the same house with different firmware and one continues working and defrosting LONG after the other shuts down and shows "Lo" error code.

Amazing AC. I had my doubts that this would cool the whole first floor of a 1500 sqft house at 12,000 BTU, but it does. And it uses very little electricity while doing it! I just left it on all summer and since it's an inverter AC, it turns to a low setting automatically to conserve power to maintain the temperature.

INTRO I am a Midea fan , and have thoroughly enjoyed my U shaped Midea 10K BTU model, so I was curious about upgrading to this unit which includes heat. The mold recall for me was a bonus, as I thoroughly clean my unit monthly using a spray bottle with bleach and water, followed by a flush of fresh water from another spray bottle. At the end of summer season I store the unit in a garage, and I also remove the exterior cover and blow out the accumulated debris with compressed air. These simple steps have kept my unit running clean and great for three years. I highly recommend Midea U- shaped window AC’s DAMAGE - As others have noted, my unit arrived slightly damaged, even though the box was not noticeably damaged. The bottom exterior side frame was pushed in slightly - maybe 1/4 inch - see pictures. Amazon was very generous and refunded $130 for this damage. For me , that made up for what seems to be a prevalent issue that they could correct by simply shipping the boxed unit in another box. Even though they made it right with a generous refund , I deducted a star because of this recurring issue. HEAT MODE- I have run the unit in both heat and cooling modes , and it seems fine . While I haven’t had the opportunity to test it in a cold house yet, I did turn it on on a chilly North Carolina morning for early September. The heat output is adequate. It delivered a maximum of 114 degree air with a medium fan setting and an outside temp of 59 degrees and an inside temp of 72 degrees. In heat mode , the unit initially drew 1100 -1200 watts of power , but after about 10 minutes , ramped down to about 750 watts , where it put out about 105 degree heat. I am off grid using solar power so this efficiency is important to me and seems better than my ceramic heaters rated at 1200 watts. NOISE LEVEL Some who have had the U shaped Midea units noted higher noise levels with this unit. I would agree, but the difference is not very big to me . My U shaped Midea AC is is a 10K BTU unit, while this is a 12K BTU unit, so I would assume it should be louder anyway. DRAFTS Some have noticed that the unit when installed , allowed a noticeable draft of outside air into the home. I did too. I am guessing that the styrofoam ducting that most window units employ is poorly sealed inside this unit allowing the flow of outside air to permeate . It is rather noticeable , especially when the wind is blowing. It also allows a slightly noticeable amount of noise to enter the house as well, compared to just the window being closed. I made a box to seal it off when not in use. CONCLUSION To me, this unit seems to operate normally and is an improvement over my U shaped unit because of the heat feature. The drafts though are a serious concern to me. I turn the unit off at night , so the room it’s in will lose a lot of heat overnight. Without a box to seal it off, this would make the overall efficiency much lower . Most do not have tools and the ability to construct a box to do this, so the unit lost a star. Overall, I would recommend this model based on what I have seen so far. I hope this helps others who are looking at this model. UPDATE (10/16/2025 ) After now having the unit for over a month, and using it during a few cold mornings, I have found that the heat mode works reliably down to outside temperatures of 41°. This is what they advertise. At that temperature outside , I found that the unit would output temperatures over 100° ( 100 to 110 degrees F ) depending on the room temperature at the time. It does take it a while to get to that temperature though. Power consumption ranges between 1200 W and 500 W , which based on my experience with resistance heaters is extremely efficient for the amount of heat it’s putting out. CONCLUSION Overall - well done, Midea ! I’m extremely pleased with this unit. It’s relatively quiet, produces comfortable heat efficiently, and seems to be a decent price for what you get. All of this will be null and void if it blows up next year, but for now, it’s humming along nicely as I type this - so fingers crossed. Finally , I purchased a second unit because of the experience this one and my previous Madea U-shaped unit has given so far. If both units run well through the winter, I might add another star next year. Time will tell! UPDATE #2 November 12, 2025 I have since purchased a second unit as the first unit has performed very well. I have had multiple days below 41 degrees , with nightly lows in the low 30’s. The unit will not heat below 38 degrees on average. I’ve seen it continue to run as low as 36 degrees , but usually at 38 it gives up the fight. The heat it makes at those temps is pretty weak as well. It also does not come back on once the outdoor temps rise back above 41 degrees immediately. The unit being cold soaked in the morning, it usually takes about 45 minute to an hour of above 41 degree temps to thaw and reset . One other thing to note is that the lowest you can set it to is 60 degrees. That would be fine , but the average temp it keeps when set to 60 is about 65 to 68. Also when set to 60, it seems to either be “on” or “off”, instead of ramping up and down smoothly at warmer settings. It’s a bit annoying to sleep with for me as I like the bedroom to be about 60 to 65 degrees for sleeping, and the “on and off “ is quite repetitive sometimes ( on for 5 minutes , off for 10 minutes ) . Get annoying. On a more positive note, what I can definitely say now about this unit is that compared to a traditional resistance based heater, it is EXTREMELY efficient . I would say 30 to 40 percent more efficient, which is HUGE when you run it daily for 10 to 20 hours. Overall, I do recommend it for those on solar power looking to maximize their system’s performance. The batteries and inverter are working so much less for a constant 750 watt average load . If this unit will perform for 10 years, it’s a home run. We will see … UPDATE… Well, I liked the first one so much (and I still do ) that I ordered a second one. It arrived with some light damage , which Amazon allowed another re-imbursement for. I installed it and within a day of using it I realized it had a knocking noise when it started up. It was very noticeable and totally different from my first unit which hums along so smoothly. Amazon was extremely good about letting me return it so no harm no foul? I didn’t worry too much about it and just ordered another one. This would now be my third one…. Number 3 arrived damage free, and the startup was nice and smooth . I was so happy that my third one was going to be the charm, but….the vibrations and noises it made in its low power settings were TERRIBLE. I tried shimming the unit with foam, but no success. The compressor simply was out of balance . Badly out of balance. So, again I contacted Amazon and again, Amazon was great about honoring their return policy. So… I am now believing that I simply got lucky with my first unit. It is still humming along perfectly, but the overall experience with Midea’s quality has been very disappointing . Because of that, I’m reducing the star count down to 2 out of 5. Sorry Midea, I tried to like it …

These are must haves for landlord rental units. If you don't have Central AC/heat and have voucher tenants, portable heaters are no longer qualified as a heat source! The new Biden administration rules want a "permanent" source and a wall-mounted gas brick heater is also no longer qualified. In fact, they made us remove a brand new one installed a year earlier. But this baby DOES qualify!!! It will get you through inspection and you can still supplement with space heaters when temps fall into the 30s, as heat pumps don't work at lower temps. Bonus, your tenant will thank you because they are SO much more energy efficient, their electric bill in the summer is a little more than half of the cost of traditional window units.

Purchase of the year! I split my time between the West Texas desert and my DFW home. I put this unit in my camper because the smaller one it came with couldn’t keep up with the HOT and COLD West Texas climate. This AC keeps my camper cold even in 118 degree heat. The heater function is a life saver too because I don’t have to use propane to heat my camper all winter. I save thousands of dollars just in that alone. It says the heater won’t work below 41 degrees, but I can tell you it certainly does and keeps freezing nights in West Texas quite cozy. I used a temperature tracking thermometer until I could trust the auto functions of this unit, and I can tell you the temperature regulation is spot on.

This is the second window air conditioner I bought for this application -- same make and model. I am using it to cool and heat a 12 x 24 foot uninsulated garage. The first one I bought was defective. Would not blow air colder than 68F. Probably needed more Freon, but I was not going to get it serviced. I tried to get in contact with the manufacturer first, like they beg you to do if you have an issue, but their chat and helpline were both down. So I contacted Amazon and they arranged to have the unit picked up at my home address. I dismounted the A/C, repackaged it, and left it out in my driveway. I happened to be there when the Amazon driver arrived. I had it ratchet-strapped to a handcart, so the driver used that to take it to his truck and then returned the equipment. It was probably one of the best customer services I have ever experienced. Amazon refunded my money in full a couple of days later, after the return shipment was received. I had to purchase the second unit as a new, separate transaction. I decided that it was worth my time to try again -- same make and model. I am told Consumer Reports had top-rated that specific machine so I had reason to believe my first one was a fluke, and the issue would not be repeated. I had help installing the first one, but I removed it and installed the second one by myself. It was a heavy lift, but I managed. I was able to make the second installation without any issues. I had taken the time to review the owner's manual, just to see if I had made a boneheaded mistake on the first installation. But no, I had done everything by the book. The manual tells you to do the first run set for 60F. I am doing that now. The machine seems to be working perfectly, blowing cool air out the front and hot air out the back. I'm just going to let it run all day and see where the room temperature settles. I'll report back with my findings. I have not tried any of the advanced programming features yet. I may never. If it just cools and heats my garage that'll be just fine. Update: I have used it as an air conditioner a couple of times now. It did make things comfortable. I have yet to try it as a heater. That's next.

When this unit arrived, I inspected it and I immediately noticed damage to the back of the unit and the inside evaporator coils protected behind the filter and removable grill cover. The box had no signs of visible damage, and none of the plastic on the pull-out filter grill was damaged. I requested a replacement and had to go to UPS to return the original unit. The 2nd unit also arrived with no damage to the box or the front of the unit, but also had damage to the evaporator coil behind the front grill and the removable filter. This leaves me to conclude these units are leaving the factory in this condition. Once the unit was put in the window, I noticed the foldable panels don't hug the sides of the unit and leaves rather large gaps. I used foam insulation board to block the foldable panels and cover a majority of the gaps. As for cooling, this past summer of 2025 was noticeably hotter than past years and this unit held up through all the days of high 90 degree weeather an over 100 degrees. I didn't notice the heat wave inside my home. My electric bill was also slightly lower than anticipated. On most days it was rather quiet but not completelly silent. I like to mask the street noise outside, so I wasn't bothered by it not being silent. There were a few times the AC would kick on and vibrate the entire wall and become rather loud, prompting me to shut the entire unit off. It would stay on for multiple days, nonstop and the inside temperature using an independent digital thermometer was always consistent with the desired setting. Over night using the dehumidifier mode would drop the room temperature below the desired setting, however, I didn't mind. Over all its a good unit that provides constant tempreature monitoring dispite the item arriving in less than perfect conditin from the facttory. It's not loud but not silent. It's pretty energy efficent considering how hot this season was ans how often it was used when compared to my electtric bill. I am not disappointed with my purchase. I also appreciate the payment option Amazon made available, so I didn't have to drop $500 in 1 payment since I don't use credit cards