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PerfectAire

Perfect Aire 10,000 BTU Casement Window Air Conditioner– Cools 450 Sq. Ft. Remote with Follow Me, Digital LED Display, Timer, Sliding/Crank-Out Window H: 23.5 Inch x W: 14.75 Inch x D: 21 Inch

  • Based on 337 reviews
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Availability: In Stock.
Fulfilled by MaxWarehouse
Arrives Friday, Jul 24
Order within 22 hours and 52 minutes
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Color: White


Features

  • POWERFUL COOLING: 10,000 BTU casement window air conditioner quickly cools rooms up to 450 sq. ft., perfect for bedrooms, living rooms, and home offices with sliding or crank-out windows.
  • EASY INSTALLATION KIT: Includes expandable mounting kit includeds expandable accordion pannels, top rail, harware, window seal foam that will accommodate horizontal sliding or crank-out casement windows with a 1512/1614 (min./max.) window width and a 2114/3912 (min./max.) window height
  • PERSONALIZED CONFORT SETTINGS Adjustable thermostat (6886F), three cooling & fan speeds, full-range air direction, Sleep mode, and 24-hour programmable timer for day-and-night comfort.
  • FOLLOW ME REMOTE + LED DISPLAYS: Smart remote doubles as a portable thermostat (26 ft. range), sensing the temperature where you are; soft-touch digital controls with LED screen make operation effortless.
  • IMPORTANT: To ensure the proper functioning of your new air conditioner, please allow the unit to stand in an upright for position for at least 24 hours before operating. If you do not sit your unit in the upright position for 24 hours before operation, this could seriously affect the capability of the compressor and ultimately the production of cold air.

Description

Standard window ACs don’t work with sliding or casement-style windows—but this one does. Perfect Aire’s vertical chassis is made to fit narrow openings like side-by-side sliders. No expensive workarounds—just cooling that fits your home the way it is. Start by calculating the square footage of your room. Multiply the length by the width to get an accurate measurement for sizing. Use your room size to choose the right BTU rating. This model is best for rooms around 400–450 sq. ft.—ideal for medium spaces. Increase BTUs for sunny rooms, kitchens, or multiple occupants. Always round up if unsure. Measure both width and height of your window and check against the model’s requirements before purchasing. This unit fits windows 15.5" to 16.25" wide and 21.25" to 39.5" high. The vertical chassis design is ideal for narrow openings—like sliding or casement-style windows. Always measure before you buy to ensure a proper seal and stable installation. The included Follow-Me remote doesn’t just control the unit, it acts as a portable thermostat. It senses the temperature around the remote and adjusts cooling to match, so you stay comfortable no matter where you are in the room. Fine-tune your comfort with three cooling and fan speeds, so the air feels just right. Then use the adjustable vents to direct cool air exactly where you need it: across the room, up high, or right by your side. Electronic controls and an easy-read LED display make it simple to adjust your settings. Set your temperature, fan speed, and mode with just a few taps. This unit includes a full mounting kit, support bracket, and foam seal, plus an illustrated manual to guide setup. Just grab your toolbox and go.

Brand: PerfectAire


Capacity: 74 Pounds


Cooling Power: 10000 British Thermal Units


Special Feature: 4 Way Swing


Product Dimensions: 21"D x 14.75"W x 23.5"H


Seasonal Energy Efficiency Ratio (SEER): 12


Color: White


Voltage: 115 Volts


Noise Level: 61 Decibels


Refrigerant: R-32


Cooling Power: 10000 British Thermal Units


Additional Features: 4 Way Swing


Color: White


Noise: 61 Decibels


Refrigerant: R-32


Filter Type: Reusable Filter


Inverter Type: No Inverter


Installation Type: Window


Compressor Type: reciprocating


Is Outdoor Unit Required: No


Air Conditioner Application: Residential


Voltage: 115 Volts


Power Source: Corded Electric


Wattage: 961 watts


Seasonal Energy Efficiency Ratio (SEER): 12


Annual Energy Consumption: 1000 Kilowatt Hours


Control Method: Remote


Controller Type: Remote Control


Warranty Type: Limited


Form Factor: Window


Brand Name: PerfectAire


Model Name: 10,000 BTU Casement Slider Window Air Conditioner with Remote Control


Model Number: 4PASC10000


Included Components: Installation Kit


UPC: 842149000530


Manufacturer: Perfect Aire


Unit Count: 1.0 Count


Warranty Description: NO-HASSLE 1-YEAR WARRANTY We've got your back with Perfect Aire's comprehensive product warranty. Comfort...built to last!


Item Dimensions D x W x H: 21"D x 14.75"W x 23.5"H


Item Weight: 74 Pounds


Window Opening Maximum Width: 16.25 Inches


Window Opening Minimum Height: 53.98 Centimeters


Window Opening Minimum Width: 393.7 Millimeters


Window Opening Maximum Height: 39.5 Inches


Capacity: 74 Pounds


Floor Area: 450 Square Feet


Room Type: Apartment, Bedroom, Dorm Room, Family Room, Living Room


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Jul 24

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

    • Best alternative to portable AC for side sliding windows
Color: Gray
Had to do some slight window sill modification and the unit didn't seem to have a drain hole for the pan but a hole here and some trimming of the sill and a whole lotta heavy duty gorilla tape sealing it all off and ta-da! This thing works perfectly and cools my ancient little apartment that has absolutely zero insulation fantastically! Wish I had found this 4 years earlier as I have struggled with those horrible portable ac units with their gigantic hoses and miserable heat disapation. I've spent about $2,000 on portable AC over the last 4 years and this unit is beyond any of them! There's a near constant stream of water coming from my makeshift drain hole as the compressor sure builds up water but other than that I have no concerns! Best bang for you buck if you have a drill and sharp bit on hand, maybe a dremel would work too for the sill if you need. Will add photos soon ... show more
Reviewed in the United States on June 19, 2026 by PierceBank
    • Really really good
Color: Gray
This has saved our lives this past summer. It was kind of hard to install, mainly cause we had no clue what we were doing, but we have had zero issues with it and it has cooled down not only our room but it seems like our whole apartment as well.
Reviewed in the United States on October 1, 2025 by Spencer H.
    • Minor shipping damage but unit works perfetly. It's a keeper.
Color: Gray
Arrived with minor damage that I'm not too upset about but did take that one star away. Otherwise, this unit is excellent. It's quieter than our last one and cools just as well. The price I paid convinced me quickly that some cracked plastic on a bottom corner isn't a big enough problem to send it back and risk it being out of stock and therefore ending up paying ~200 dollars more for another one with a different logo on the case. All of these casement units no matter what brand name are on them are all made by the same manufacturer (I forgot their name) So it doesn't matter if it says LG, or Whirlpool, Frigidaire, or Perfect Aire or any one of a dozen other names that might be on the case. All of the casement style ones are made in the same place. Your current choices are 8k btu and 10k btu and you might find old stock of 12k btu, but they aren't currently being made. ... So, figure out if 8k btu or 10k btu is right for your needs and then find the one with the best number on the price tag and buy it. The seller went above and beyond to get it to me on time. Not sure what slowed the process down but the day before it was due to arrive prime shipping, I got a notice they were overnighting it to me. That had to cost a fortune, but they did it. I'm impressed that they took their promise of 3 day shipping so seriously that they paid overnight on an 85lb package to get it to me on time. I mentioned some shipping damage. The plastic on one corner is busted up a bit. I would have preferred no damage, but it isn't so bad that I want to go through the hassle of sending it back. Also, it looks like someone's knee flattened out a knee-sized section of the fins in the back of the unit. I'll take a plastic shim in between the flattened fins and spread them apart one of these days to make sure air can move between them. Also not a really big deal. I'd have rathered it arrived in perfect condition, but considering the price and the sellers willingness to do what they said they'd do... I don't mind too much. I'm capable of fixing that myself. I mentioned that this unit is quieter than our last one and I also mentioned that all of these are manufactured by the same company no matter whose logo ends up on them. The old unit got loud during its 3rd year in service. As they age, they develop some rattles and the fan starts getting choked up by dirt and debris (easily fixed with a pressure nozzle on a garden hose if you just hose it out at the end of every season) But, no matter what, as the compressor ages, it will get noisy. One could pull the case off after each season and lubricate mechanical parts like the fan etc and tighten up all screws that have worked loose from constant vibration, but this unit will be louder and louder the longer it remains in service. Some of that can be mitigated by general maintenance and care, but even with proper care, the more hours it runs, the louder it will get. I'm pleased with how this unit functions. And, I'm pleased that the seller was willing to go the extra mile to make sure I got it on time. All in all, this was an excellent purchase experience sans the damaged plastic corner and flattened fins I already mentioned. ... show more
Reviewed in the United States on June 6, 2018 by six
    • A great 5 star window AC for the price
Color: Gray
Delivery 5 stars, ease of installation 5 stars, overall performance since being installed 5 stars. Far above my 3 yr old Frigidaire that died a sudden death after only 3 to 4 years. My older unit lasted 12 years and I cleaned and serviced it well and it had a good compressor versus the newer unit which they made cheaper and less reliable. ... show more
Reviewed in the United States on August 31, 2025 by Jack C
    • IF YOU RETURN IT, THEY WILL CHEAT YOU OUT OF YOUR MONEY
Color: Gray
I can't provide a "Product" review because I never opened the package. What i am going to review is the customer service of DIEGO at MAX WAREHOUSE. I ordered this unit on june 10th for 576.00 including tax. I received it on June 11th, so I can say delivery was spot on! This unit was dropped off at my door and my camera caught the delivery. The package was intact with no visible damage to the box. I didnt need it any longer because my central air unit was able to be replaced. I returned this unit the next day. I never opened it, it was put on my back seat of my suv. I took it to the UPS store and had a worker take it out of my suv and scanned it in as a return. Now when I initiated the return I received a message that 72.14 would be deducted from my overall purchase amount. I was ok with the 504.19. I waited patiently and received a refund of 369.00!!! I immediately sent a message to max warehouse but also sent a message to amazon customer service , who deserves a praise, NOT Max warehouse. Anyway, Diego at Max replied telling me that there was a 25% restocking fee added because of the condition of the package and some crap about it being opened. That pissed me off because it delivered and immediately put in my suv. Never even took the packing slip off the package. I have pictures of how I returned it and Diego had the audacity to reply saying IT CLEARLY STATES A RESTOCK STOCK FEE WILL BE ADDED IF THE ITEM HAD DAMAGES ETC. I told him that was a total lie, I have pictures of the unit as it was delivered and how I returned it. This #$$$%^^_ repeated his same spill but started with AGAIN! smh He ended his spill by saying as a courtesy we will provide u a full refund. I still didnt get the full refund, only the 504.19. Im ok with that since I returned the unit and was aware of me paying for returning the product, but to lie and say it was returned damaged etc is RIDICULOUS especially after i said I have proof/pictures. So be careful if you have to return the unit because they will TRY to get over on you!!!! And keep your money. Thank you Amazon customer service for immediately returning my 134.66 that Max warehouse tried to keep. ... show more
Reviewed in the United States on June 26, 2026 by Armeir j. Our prime
    • Altho it's for sliding & crank windows, it can be placed in narrow double-hung windows too!
Color: Gray
I absolutely love this air conditioner! Back when my home was built in the 1920's, all but the front window are quite narrow, how they were all used back then. Growing up the only air conditioners that fit in the dining room window was a 5,000btu. For the size of the house that size didn't do much good. Over the years companies started making all different size/shape/style air conditioners. Last summer the portable one I had blew out so I started researching the newer models for this summer. I saw this one advertised for a great price, measured my window & asked my brother if I'd be able to use this in a double hung window since it's labeled for a sliding or crank window. We measured the sq ft of the 1st floor, read all the info listed for this & he said it wouldn't be a problem. I had no problem ordering it & delivery was quick. The only issue was the top has a small dent in it. It took my brother about 20 mins to have the rack set, the air conditioner in, locked in place & winterized sealed. It works great! This is the best air conditioner the house has ever had. I HIGHLY recommend it. ... show more
Reviewed in the United States on August 25, 2020 by Gina
    • Happy with it
Color: Gray
I installed this today a d am very happy with it. It cooled down my hot living room quickly and I like the remote control and features (auto temp, manual, etc). I also appreciate that they included the brace with it because it would have been a hassle to have to buy that separately. My only criticism is that the installation instructions weren't good. Now that I've done it it would be easy to do again but it took unnecessarily long because the instructions stunk. Still giving it five stars because it performs great and was delivered early. ... show more
Reviewed in the United States on July 15, 2024 by Amazon Customer
    • Comes with its own support bracket!! Comes with its own support bracket!!
Color: Gray
Review Image by Jo Jo Bean
Review Image by Jo Jo Bean
Husband installed this last night in our tiny attic windows. This area is a studio, workplace for me so it gets super hot pretty quickly. We are currently having a cool spell so I cant speak on how fast it takes to cool down aprox. 400 sq ft. just yet. Wanted to speak specifically on it being shipped with its own support bracket! I was pleasantly surprised it had one (must have missed it in the description). He needed to rig a couple of boards to make it fit our sills, however this will work! Time from unpacking to install/power was just about 1.5 hrs. This even included him cutting a few boards to fit our sills. Thankful I ran across this casement AC as the only other unit that would possibly fit these window would be a swamp cooler. Who wants to carry dehumidifier water up and down steep attic stairs... not this girl! As with any window unit, it is not the quietest, but nothing you cant get used to. Its a window unit... not a whole house unit! ... show more
Reviewed in the United States on June 4, 2019 Reviewed in the United States on June 4, 2019 by Jo Jo Bean

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