Everything for Back to School — and then someShop now

Skip to contentGo to Product Search
Main Content

Keystone - 12,000 BTU 550 Sq. Ft. 230V Through-the-Wall Air Conditioner with 10,600 BTU Supplemental Heat Function - White

Model: KSTAT12-2HD
SKU: 6587487
Sold byBest Buy

About this product

With reliable air conditioning units, Keystone produces consistent cooling to keep you comfortable, even on the hottest days. Installed easily through-the-wall, this 12,000 BTU / 10,600 BTU supplemental heating capacity air conditioning unit can effectively cool rooms up to 550 square feet with dehumidification up to 2.5 pints per hour to remove moisture from the air. Perfect for medium-sized living spaces like apartments, living rooms, and much more. The unit features a unique remote with a thermostat built in to sense the temperature of the room, displays it on the remote's LCD screen, and sends a signal to your AC unit every 3 minutes for accurate cooling. Money saving features include energy saver mode, sleep mode, and a programmable 24-hour timer. You'll know when it's time to easily remove and clean the mesh filter with the Check Filter alert. Keystone not only provides a 1-year warranty but ensures that you stay cool and comfortable at a cost-conscious price.

Features
  • Reliable AC with Supplemental Heat

    Our powerful 12,000 BTU cooling capacity / 10,600 BTU supplemental heating capacity wall ac can efficiently provide comfort all year long for any small to medium room in your home up to 550 Sq.Ft.

  • Versatile Cooling and Heating Capacity

    Enjoy 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

  • Space Saving Design

    Keep your window view and floor space with this wall heater ac; Easy installation with interior trim kit; This unit requires a special 230-volt/20-amp electrical outlet

  • Smart Remote Control

    The remote takes the temperature of the room you are in, displays it on the LCD screen and sends a signal to your heating ac every 3 minutes for accurate cooling

  • Energy Saving Comfort

    Our air conditioning and heater unit will give your electric bill a break by using the 'Energy Saver' or Sleep' mode

  • Voltage Requirement

    This unit requires a special 230V electrical outlet and will not operate with a standard 115V outlet

See all features
Specifications
  • Recommended Room Size
    550 square feet
    BTU Cooling Rating
    12000 british thermal units
    Number of Cool Settings
    3
    Number of Fan Speeds
    3
    Airflow Rate
    300 cubic feet per minute
    Remote Control
    Yes
Sponsored

Reviews

Rating 1 out of 5 stars with 1 review

1 star rating. 1 review
0% would recommend to a friend

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 1 out of 5 stars

    Stay away from Keystone

    Thie Keystone brand is a terrible product. I bought this 4 years ago and it died. It was the second one, as first didn't work. Ordered a replacement last week. It didn't blow cold. Now I have to return this 70 lb monster since neither mfr nor best buy will send ups to pick up. I'm buying a different brand and not from best buy s their service was non existent

    Posted by SueW

Compare similar products

Keystone - 12,000 BTU 550 Sq. Ft. 230V Through-the-Wall Air Conditioner with 10,600 BTU Supplemental Heat Function - White
Keystone - 12,000 BTU 550 Sq. Ft. 230V Through-the-Wall Air Conditioner with 10,600 BTU Supplemental Heat Function - White
1.0(1)

With reliable air conditioning units, Keystone produces consistent cooling to keep you comfortable, even on the hottest days. Installed easily through-the-wall, this 12,000 BTU / 10,600 BTU supplemental heating capacity air conditioning unit can effectively cool rooms up to 550 square feet with dehumidification up to 2.5 pints per hour to remove moisture from the air. Perfect for medium-sized living spaces like apartments, living rooms, and much more. The unit features a unique remote with a thermostat built in to sense the temperature of the room, displays it on the remote's LCD screen, and sends a signal to your AC unit every 3 minutes for accurate cooling. Money saving features include energy saver mode, sleep mode, and a programmable 24-hour timer. You'll know when it's time to easily remove and clean the mesh filter with the Check Filter alert. Keystone not only provides a 1-year warranty but ensures that you stay cool and comfortable at a cost-conscious price.

Keystone - 700 Sq. Ft. 14,000 BTU 230V Through-the-Wall Air Conditioner with Remote Control - White
3.5(4)

With reliable air conditioning units, Keystone produces consistent cooling to keep you comfortable, even on the hottest days. Installed easily through-the-wall, this 14,000 BTU air conditioner can effectively cool rooms up to 700 square feet with dehumidification up to 2.5 pints per hour to remove moisture from the air. Perfect for large sized living spaces like apartments, living rooms, and much more. The unit features a unique remote with a thermostat built in to sense the temperature of where you are in the room and adjusts as needed automatically. Money saving features include energy saver mode, sleep mode, and a programmable 24-hour timer. You'll know when it's time to easily remove and clean the mesh filter with the Check Filter alert. Keystone not only provides a 1-year warranty but ensures that you stay cool and comfortable at a cost-conscious price.

Keystone - 250 Sq. Ft. 6,000 BTU 115V Window Air Conditioner with Remote - White

With reliable, window-mounted air conditioning, Keystone produces consistent cooling to keep you comfortable, even on the hottest days. This 6,000 BTU window-mounted air conditioner can effectively cool rooms up to 250 square feet with dehumidification up to 1.5 pints per hour to remove moisture from the air. Perfect for smaller-sized living spaces like apartments, dorm rooms, sheds, and much more. The unit features a unique remote with a thermostat built in to sense the temperature of where you are in the room and adjusts as needed automatically. Engineered with 3 cooling and fan speeds for flexibility and quiet operation (51.9 dBA on low), the unit ensures that you can get a good night's sleep, watch TV peacefully, or work without distraction. You'll know when it's time to easily remove and clean the mesh filter with the Check Filter alert. Keystone not only provides a 1-year warranty but ensures that you stay cool and comfortable at a cost-conscious price.

Frigidaire - 115V 12,000 BTU 550 Sq. Ft. In Wall Air Conditioner - White

Upgrade your home comfort with this powerful Window Air Conditioner designed to efficiently cool medium to large rooms with precision and convenience. Ideal for living rooms, primary bedrooms, apartments, and open-concept spaces, it provides consistent cooling while maintaining energy-conscious operation.

Specs

Questions & Answers
  • What is the air conditioner's combined energy efficiency ratio (CEER)?

    The air conditioner's combined energy efficiency ratio (CEER) is 9.5.

    This question and answer was generated by AI based on customer and product data.
  • Does the air conditioner have a sleep mode?

    This air conditioner does have a sleep mode.

    This question and answer was generated by AI based on customer and product data.
  • What is the maximum room size that this air conditioner can cool?

    This air conditioner can cool a room up to 550 square feet.

    This question and answer was generated by AI based on customer and product data.
  • What is the air conditioner's cord length?

    The cord length of the air conditioner is 78 inches.

    This question and answer was generated by AI based on customer and product data.
  • How many fan speeds does the air conditioner have?

    This air conditioner model has three fan speeds.

    This question and answer was generated by AI based on customer and product data.
Ask a question
No content
Sponsored
Ask BlueAI

Finance Options

My Best Buy® Credit Card
Choose a benefit:Or
Buy Now, Pay Later
Lease to own

Finance Options

My Best Buy® Credit Card
Choose a benefit:Or
Buy Now, Pay Later
Lease to own