• Keystone 10000 BTU Window Air Conditioner for 450 Square Feet with Remote Included
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Keystone 10000 BTU Window Air Conditioner for 450 Square Feet with Remote Included

$734.08
$429.99
Save $304

Reviewers mentioned

See 23 reviews
Noisy
Height
20.87 in
Depth
23.5 in
Width
14.57 in
Length
23.5 in
Number of Zones
450
Keystone 10000 BTU Window Air Conditioner for 450 Square Feet with Remote Included

Reviewers mentioned

See 23 reviews
Noisy

Keystone 10000 BTU Window Air Conditioner for 450 Square Feet with Remote Included

$734.08
$429.99
Save $304
Found at 8 stores ·Prices updated 4 days ago 
Store
Wayfair
Keystone 10000 BTU Window Air Conditioner for 450 Square Feet with Remote Included
$429.99 
Walmart
Keystone 10,000 BTU 115-Volt 450 Sq. ft Casement Window Air Conditioner, White, KSTSW10B
$429.99 
Lowe's
$429.99 
Home Depot
10,000 BTU 115V Window Air Conditioner Cools 460 Sq. Ft. in White
$429.99 
Nebraska Furniture Mart
$429.99 
Page 1 of 2
Height
20.87 in
Depth
23.5 in
Width
14.57 in
Length
23.5 in
Number of Zones
450

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Noisy
100% negative
5 reviews

Reviews

NOISEY

Very noisey, clicks all the time

CHERYL · Review provided by Walmart
October 06, 2024

Quiet operating.

We ordered it online and it was delivered in two days. It is quiet and cools a fairly big room very efficiently.

Berg · Review provided by Lowe's
September 04, 2024

Contents Damaged

Unit arrived damaged

Michael · Review provided by Walmart
August 30, 2024

Would not buy again

Not a lot of options for casement ac. I used a portable unit before but thought this would be an upgrade. At least it doesn't take floorspace. It's loud. Don't expect to use it in a quiet environment like an office or bedroom. ac doesn't cycle enough. It just blows air and the fans most of the time. The only way to get it to turn on the ac regularly is to power it off. Power it back on and turn off the energy save mode and put it on cool. That works for a short while. Auto doesn't work.

Alibaba · Review provided by Home Depot
August 04, 2024

Antarctica Kind of Cold!

Great value for the money; I got the 10k BTU unit and it really cools the room quickly. My only complaint is that it is VERY loud and that is why I only give it 4 stars. Otherwise I’m happy with the performance.

PoconoGma · Review provided by Home Depot
August 03, 2024

Very powerful with a full compliment of settings. Only downside is that it's a bit loud. Still a great a/c!

DAVID · Review provided by Home Depot
July 31, 2024

Not happy

My air conditioner has not been installed, they canceled first appointment supposed to come today, tried to call but haven’t heard from anyone

Patrice · Review provided by Walmart
July 19, 2024

Good Air Conditioner

We used this pretty constantly last year in a 350 sq.ft. area. It was very hot here last summer, and it never had any difficulty keeping up. In fact we really never needed it on high. We just reinstalled it, and hopefully it will last for many more years.

Theresa · Review provided by Walmart
May 30, 2024

[Rewarded Review] Sliding window air conditioner

Works amazing. Very easy install. Would definitely recommend it to anyone.

TammyE · Review provided by Best Buy
April 12, 2024

Designed for slider windows

Heavy, damaged, fair instructions, missing part

Review provided by Lowe's
March 29, 2024

[Rewarded Review] Good a/c but front panel stopped working!

This air conditioner works well enough, but after two months of use, the front panel display stopped working, which give me no confidence in its long-term performance.

SusanH · Review provided by Best Buy
March 12, 2024

[Rewarded Review] casement window air conditioner

my central air broke and I can't afford to replace it this year. I bought this and it cools 4 rooms when I keep it on high. The part of the house I use. It's a little pricey as the casement air conditioners are but it does the job.

SusanneS · Review provided by Best Buy
July 08, 2023

Excellent solutioin for a sliding window. (I had formerly had an air conditioner that was situated on the floor with a large hose up to the window.) This is a much better solution. I bought a separate exterior mounting bracket for stability. My only complaint is that it runs a bit loud - the lowest fan setting is quite robust and a bit noisy.

Linda · Review provided by Home Depot
July 06, 2023

[Rewarded Review] it’s cold in here

I installed this window air conditioner in a 400 square-foot motorhome window, I decided to get a window air instead of a portable because it’s cheaper to run this air conditioner works perfect and cools off my area and today it was 98° and beautifully cool inside

Googleit · Review provided by Best Buy
July 01, 2023

[Rewarded Review] Vertical AC

Fits,well great quick delivery. All good! Not many options in this style works great.

user663984 · Review provided by Best Buy
June 24, 2023

[Rewarded Review]

Damaged, not replaced in a timy manner

Review provided by Walmart
June 14, 2023

[Rewarded Review] It was what i was looking for.

Needed an AC unit to fit an attractive, yet impractical horizontally opening window. The installation required a little adaptation, as the installation needed about another two feet vertically to closer of the window. Not a huge deal, except they are no out of the box solutions. I filled the gap with one inch insulating form project board, painted to camouflage it. It cools a relatively small room nicely, and that what we needed. Mentions of minor handling imperfections (dents and bent stuff) in other reviews are real, but not terribly blatant on the unit i received.

Jeff · Review provided by Best Buy
June 11, 2023

[Rewarded Review] Good deal!

Perfect for my office that only has slider window! Ice cold!’

JamesC · Review provided by Best Buy
June 10, 2023

Damaged product

The unit was damaged when I opened the box.

Review provided by Walmart
June 03, 2023

[Rewarded Review] Cool

Excellent Product. No problems what so ever and must have minimum characters

LestonC · Review provided by Best Buy
June 03, 2023
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Overview

We found this at eight stores including Walmart, Lowe's, and Home DepotThis product sells from $429.99 up to $734.08. Users can save 41% by shopping at Wayfair.

Prices are currently typical for this product, ranging from $400 to $555, and the lowest price we've seen is $322.49.

This product is also marketed as the 

Keystone 10000 BTU Window Air Conditioner for 450 Square Feet with Remote Included at Wayfair

,

Keystone 10,000 BTU 115-Volt 450 Sq. ft Casement Window Air Conditioner, White, KSTSW10B at Walmart

,

10,000 BTU 115V Window Air Conditioner Cools 460 Sq. Ft. in White at Home Depot

.

Description

Cool your space efficiently with the Keystone 10,000 BTU Casement Window Air Conditioner. Perfect for rooms up to 450 sq. ft., it features a remote, sleep mode, and energy-saving capabilities. Enjoy customizable comfort with 3 fan speeds and 4-way air direction.