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Keystone

Keystone - 8,000 BTU 115V Window Air Conditioner with 3,500 BTU Supplemental Heat Function - White

Model: KSTHW08B
SKU: 6585664
$429.99
or
$35.84/mo.
suggested payments with 12-Month Financing
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Recommended Room Size

350 square'

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What's includedTerms & Conditions
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Warranty Protection Plans
  • No Plan selected
    No Plan
  • 2-Year
    $54.99
    About $2.29/mo.
  • 4-Year
    $109.99
    About $2.29/mo.
Availability
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SponsoredGE Profile - ClearView 350 Sq. Ft. 8,300 BTU Smart Ultra Quiet Window Air Conditioner - White
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The price was $469.99
Specifications
  • Recommended Room Size
    350 square feet
    BTU Cooling Rating
    8000 british thermal units
    Number of Cool Settings
    3
    Number of Fan Speeds
    3
    Airflow Rate
    300 cubic feet per minute
    Remote Control
    Yes
  • Key Specs
    • Recommended Room Size: 350 square feet (The recommended area size in which the product is designed to operate and produce optimal results, such as the desired heating or cooling. Generally, running a unit too big or too small for the space will result in ineffective operation and wasted energy.)
    • BTU Cooling Rating: 8000 british thermal units (The amount of BTUs (British Thermal Units) per hour the unit uses to cool the air, also known as cooling capacity. For best results, the capacity of the unit should be based on the size of the area it is intended to cool. For example, a 5,000 BTU capacity works optimally for a 150 square foot room. In general, an oversized unit will not effectively remove humidity, and an undersized unit will not cool the space efficiently.)
    • Number of Cool Settings: 3
    • Number of Fan Speeds: 3
    • Airflow Rate: 300 cubic feet per minute
    • Remote Control: true
    • Integrated Heater: true
    • Sleep Mode: true (Enabling this mode sets the unit to first reach the desired temperature, then gradually increase the temperature over a period of time until it reaches a new set temperature, typically several degrees higher than the initial cool setting. This mode helps save energy while keeping the room comfortable.)
    • Timer: true
    • Auto Shut-Off: true (Feature automatically turns off the product.)
    • Combined Energy Efficiency Ratio (CEER): 10.9 (The standard used to measure energy efficiency in window and room air conditioners by the Department of Energy (DOE) as of June of 2014. CEER measures the ratio of output BTUs (British Thermal Units) to input electrical energy (watts) in standby mode and while the unit is operating. Generally, the higher the number, the more efficient the unit. Though higher efficiency units are typically more expensive upfront, they may offset the price in energy costs over time.)
    • App Compatible: false (The product can be connected to a program or software application on a mobile device, which then receives collected data from the product.)
    • Window Mounting Kit Included: true
    • Air Conditioner Type: Window
  • General
    • Brand: Keystone
    • Model Number: KSTHW08B
    • Product Name: Keystone 8,000 BTU 115V Window Air Conditioner with 3,500 BTU Supplemental Heat Function
    • Color: White
    • Air Conditioner Type: Window
  • Dimensions
    • Minimum Window Opening Height: 14.65 inches
    • Minimum Window Opening Width: 21.46 inches
    • Maximum Window Opening Height: 14.65 inches
    • Maximum Window Opening Width: 21.46 inches
    • Product Height: 14.65 inches (The out of box height of the item. Height is measured as the vertical distance from the bottom of the item to the top as it would be primarily used or placed.)
    • Product Width: 18.98 inches (The out of box width of the item. Width is measured as the horizontal distance from one side of the item to the other as it would be primarily used or placed.)
    • Product Depth: 21.46 inches (The out of box depth of the item. Depth is measured as the distance from the front of the item to the back as it would be primarily used or placed.)
    • Product Weight: 60.63 pounds (The out of box weight of the item.)
    • Cord Length: 78 inches
  • BTU Rating
    • Recommended Room Size: 350 square feet (The recommended area size in which the product is designed to operate and produce optimal results, such as the desired heating or cooling. Generally, running a unit too big or too small for the space will result in ineffective operation and wasted energy.)
    • BTU Cooling Rating: 8000 british thermal units (The amount of BTUs (British Thermal Units) per hour the unit uses to cool the air, also known as cooling capacity. For best results, the capacity of the unit should be based on the size of the area it is intended to cool. For example, a 5,000 BTU capacity works optimally for a 150 square foot room. In general, an oversized unit will not effectively remove humidity, and an undersized unit will not cool the space efficiently.)
    • BTU Heat Rating: 3500 british thermal units (The number of BTUs (British Thermal Units) per hour the unit produces to heat the air, also known as heating capacity. For best results, the capacity of the unit should be based on the size of the area it is intended to heat. The recommended capacity depends on several factors such as climate and level of insulation, but generally ranges from 30-60 BTUs per square foot.)
  • Features
    • Number of Cool Settings: 3
    • Number of Fan Speeds: 3
    • Airflow Rate: 300 cubic feet per minute
    • Maximum Noise Level: 60 decibels adjusted
    • Remote Control: true
    • Control Type: Button, Button, Button
    • Integrated Heater: true
    • Sleep Mode: true (Enabling this mode sets the unit to first reach the desired temperature, then gradually increase the temperature over a period of time until it reaches a new set temperature, typically several degrees higher than the initial cool setting. This mode helps save energy while keeping the room comfortable.)
    • Timer: true
    • Auto Shut-Off: true (Feature automatically turns off the product.)
  • Power
    • Combined Energy Efficiency Ratio (CEER): 10.9 (The standard used to measure energy efficiency in window and room air conditioners by the Department of Energy (DOE) as of June of 2014. CEER measures the ratio of output BTUs (British Thermal Units) to input electrical energy (watts) in standby mode and while the unit is operating. Generally, the higher the number, the more efficient the unit. Though higher efficiency units are typically more expensive upfront, they may offset the price in energy costs over time.)
    • Amperage: 8.9 amperes (Strength of electrical current.)
  • Certifications Listings & Approvals
    • ENERGY STAR Certified: false (Devices carrying the ENERGY STAR service mark, such as computer products and peripherals, kitchen appliances, and other products, generally use 20% to 30% less energy than required by federal standards.)
  • Compatibility
    • App Compatible: false (The product can be connected to a program or software application on a mobile device, which then receives collected data from the product.)
  • Included
    • Window Mounting Kit Included: true
  • Warranty
    • Warranty - Parts: 1 year
    • Warranty - Labor: 1 year
  • Other
    • UPC: 840148726758

At Keystone, we prioritize your family's comfort. Our budget-friendly heat/cool 115V window air conditioner is designed to meet your needs. This versatile AC unit not only provides efficient cooling but also offers supplemental heat capability. It serves as an additional heat source when outdoor temperatures rise above 23 degrees Fahrenheit, complementing your main heat source. Please note that this mode is meant to supplement, not replace, your primary heat source. You'll find plenty of money-saving features in this multi-seasonal unit. Take advantage of the energy saver mode, sleep mode, and programmable 24-hour timer to customize your cooling and heating preferences according to your schedule. Additionally, our Follow Me LCD remote control ensures total convenience, allowing everyone to relax in blissful comfort.

  • Reliable Window Unit Air Conditioners: Our powerful 8,000 BTU cooling capacity / 3,500 BTU supplemental heating capacity window air conditioner with remote control can efficiently provide comfort all year long in any large space up to 350 Sq.Ft.
  • All in One Window Air Conditioner: Enjoy powerful cooling, supplemental heating, dehumidification, and fan circulation; Supplemental Heating mode is meant to be operated when temperatures outside are between 23 and 76 degrees; Mode is supplemental and NOT meant as primary heat source
  • Smart Remote: The I Sense remote takes the temperature of the room you are in, displays it on the remote's LCD screen and sends a signal to your air conditioner window unit every 3 minutes for accurate cooling
  • Powerful Cooling on a Budget: Our High Efficiency air conditioner for windows will give your electric bill a break by using the 'Energy Saver' or 'Sleep' mode
  • Space Saving Design: Save your floor space with this window ac unit; Window installation kit included
Whats Included
  • air conditioner, remote control, 2 AAA batteries, mesh air filter, window installation kit, manual, warranty
Documents
  • Energy_Guide_PDF

Q: What is the maximum room size recommended for this air conditioner?

A: This air conditioner is designed for rooms up to 350 sq. ft.

Q: Does this air conditioner have a heating function?

A: Yes, this air conditioner has a supplemental heating capability of 3,500 BTUs.

Q: What happens to the settings if the power goes out?

A: The auto-restart feature saves your settings, so they will be restored when the power comes back on.

Q: What is the cooling capacity of this Keystone air conditioner?

A: This Keystone air conditioner has a cooling capacity of 8,000 BTUs.

Q: Does this air conditioner come with a remote control?

A: Yes, it includes a temperature-sensing LCD remote control.

Q: How is the airflow direction controlled on this unit?

A: The airflow direction can be adjusted in 4 ways.

Q: How many fan speeds does the air conditioner have?

A: It has three fan speeds.

Q: what does supplemental heat mean?

A: A supplemental heater is specifically designed to be a booster or helper for your main heating system. It is not meant to function as the primary heat source for an entire room, as this will lead to inefficiency and inconsistent comfort.

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Pros for Keystone - 8,000 BTU 115V Window Air Conditioner with 3,500 BTU Supplemental Heat Function - White
There were no pros for this product—There were no pros for this product—There were no pros for this product—Cooling Performance, Noise Level, Installation Ease, Size, Remote Control

Specs

Reviews

The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.

  • Rated 5 out of 5 stars

    Great Quality Wall Air Conditioner

    Great air conditioner for small studio. Easy wall installation. Quiet and effective. Fast delivery.

    MARJORIEO Posted

  • Rated 5 out of 5 stars

    Ac/heater

    Great investment. Worth the price. Used it for small bedroom.

    Janis Posted

  • Rated 3 out of 5 stars

    MS

    It works fine but it is a little noisy thought. it heats too.

    JuanY Posted

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