Keystone New 8,000 BTU 350 Sq Ft Window Air Conditioner with 3,500 BTU Supplemental Heat, White price history and forecast - Keystone KSTHW08B
Keystone New 8,000 BTU 350 Sq Ft Window Air Conditioner with 3,500 BTU Supplemental Heat, White

Keystone New 8,000 BTU 350 Sq Ft Window Air Conditioner with 3,500 BTU Supplemental Heat, White

Brand:
Keystone
Model Number:
KSTHW08B
UPC:
840148726758
EAN:
0840148726758
Best Buy SKU:
6585664
Walmart SKU:
5123281509

Third-Party Seller Summary

Third-Party Seller Price History Summary
Price Type Price Date
Highest Price
$429.99
Lowest Price
$365.00
Most Recent Price
$429.99
Average Price
$397.50
First Tracked
Last Update

Walmart.com Summary

No price history available for Walmart.com

Price Analysis

Price history data is not available for this product at the moment.

Current Trend: No Walmart.com pricing data available for analysis.

Customer Insights: Rated 4.2/5 from 93 reviews.

Customer Reviews

93 reviews

Customer Reviews

4.2
Based on 93 reviews
5
64
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8
3
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12
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Showing 10 of 93 reviews

Second Purchase

pamela April 30, 2026

I bought this exact same unit a little over five years ago and paid about half of this. I was disappointed that the price had increased so much but it still worked well to heat and especially cool my guest house for the past five years. I live in Phoenix so the temperatures can sometimes exceed 115 degrees. I had the guest house rented for the past five years and the tenants said that it kept it cool. The times I went in there to clean I noticed how quickly it brought the temperature down. It's considered a portable or wall unit, so it's not meant to last forever but it did well for the past five years and I'm hoping to get at least that long from this new one.

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Keystone 8000 BTU air conditioner with heat

Paula June 22, 2026

Well, worth the money if you need an air conditioner I'm sure you're gonna need a heater as well. I'm using the air conditioner right now. I'm not so sure about the heater part. I'm still learning well worth the money Nice quality the compressor and the motor looks really nice on the backside of the air conditioner

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good buy!

Katherine March 21, 2026

don't be the usual guy... READ THE INSTRUCTIONS. Save yourself some time and aggravation. Cools really well. Haven't tried the heat yet. Love the features it offers as well! and great savings!

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Excellent product.

john October 31, 2025

Relatively quiet and works well. Love that there's no water dripping from the evaporator.

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Don’t go by measurements given for this unit

monica January 28, 2024

The measurements given online were not correct and we did not find that out until we cut a bigger hole in my house for this unit.needless to say when we measured this unit it was the exact same size as my old unit, so extra work had to be done to fix the issue. Don’t trust there measurements , measure your unit before cutting to fit what was supposed to be the measurements

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Came damaged. Mailing box not damaged

Richard March 27, 2026

A/c unit came damaged. The housing has a big dent in it. It's heavy to return.

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michelle November 28, 2025

the heat did not work and it was too noisy

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Timothy November 21, 2025

does not work will not come on

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return defect product.

anonymous May 29, 2026

it does not work how do i return this and get my money back?

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Mary February 3, 2026

Damaged %26 no response from anyone.

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Price History

Historical price data graph for Keystone New 8,000 BTU 350 Sq Ft Window Air Conditioner with 3,500 BTU Supplemental Heat, White

Recent Price Changes

Detailed price history for the past 90 days

Walmart.com Pricing

0 records

No Walmart.com pricing data available for analysis.

No Walmart price history available in the past 90 days

Third-Party Seller Pricing

6 records

Third-Party Sellers prices have ranged from $365.00 (Jul 7) to $429.99 (Jul 16) over the past 90 days. Current price is close to the 90-day average of $397.50.

Third-party seller price history for Keystone New 8,000 BTU 350 Sq Ft Window Air Conditioner with 3,500 BTU Supplemental Heat, White showing recent price changes
Date Price Change % Change
$429.99 $+64.99 +17.8%
$365.00 $+0.00 +0.0%
$365.00 $+0.00 +0.0%
$365.00 $-64.99 -15.1%
$429.99 $+0.00 +0.0%
$429.99

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