10 Best Keystone All Air Conditioners
for May 2022

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1
9.8
SCORE
Keystone 8,000 BTU 115V Through-The-Wall Air Conditioner | 4,200 BTU Supplemental Heating | LCD Remote Control | Sleep Mode | 24H Timer | AC for Rooms up to 350 Sq. Ft. | KSTAT08-1HC

Keystone 8,000 BTU 115V Through-The-Wall Air Conditioner

4,200 BTU Supplemental Heating, LCD Remote Control, Sleep Mode, 24H Timer, AC for Rooms up to 350 Sq. Ft., KSTAT08-1HC

by Keystone
What We like

SUPERIOR COOLING AND HEATING: With a 9.6 energy efficiency ratio (EER), this 8,000 BTU through the wall air conditioner can effectively cool rooms up to 350 sq. ft and dehumidify up to 2.1 pints per hour. (Product is not suitable for window installation). Integrated electric heater provides supplemental heating of 4,200 BTUs. Perfect for bedrooms, dens, studies, or home offices.

more infoarrow_drop_down

Product Features

  • TEMPERATURE SENSING FOLLOW ME REMOTE CONTROL: With a thermostat built into the remote control, say good-bye to uneven room temperatures. The remote makes it easier to control the unit from anywhere in the room and its integrated thermostat signals the AC to cool or heat the space based on where you are.
  • FRONT-ACCESS FILTER: Lets face it. Filters collect dust. With our front-access design, cleaning that dusty filter is a piece of cake. Simply pull it out, vacuum or rinse and dry, and slide back into place. No hassle and no disassembly required.
  • ENERGY-CONSCIOUS OPTIONS: While there are 3 cooling modes, heating mode, and 3 fan speeds pre-programmed, you have flexibility. The Auto option will automatically ramp up and down the fan speed to keep youre pre-set temperature constant. The Energy-saver mode conserves energy and saves you money by turning off the compressor once your desired temperature is reached.

Temperature sensing follow me remote control: with a thermostat built into the remote control, say good-bye to uneven room temperatures. the remote makes it easier to control the unit from anywhere in the room and its integrated thermostat signals the ac to cool or heat the space based on where you are. Front-access filter: lets face it. filters collect dust. with our front-access design, cleaning that dusty filter is a piece of cake. simply pull it out, vacuum or rinse and dry, and slide back into place. no hassle and no disassembly required. Energy-conscious options: while there are 3 cooling modes, heating mode, and 3 fan speeds pre-programmed, you have flexibility. the auto option will automatically ramp up and down the fan speed to keep youre pre-set temperature constant. the energy-saver mode conserves energy and saves you money by turning off the compressor once your desired temperature is reached.

2
9.5
SCORE
Keystone Capability 8,000 115V Window Wall Air Conditioner | 3,500 BTU Supplemental Heating | Sleep Mode | 24H Timer | AC for Rooms up to 350 Sq. Ft | KSTHW08A, 8000, White

Keystone Capability 8,000 115V Window Wall Air Conditioner

3,500 BTU Supplemental Heating, Sleep Mode, 24H Timer, AC for Rooms up to 350 Sq. Ft, KSTHW08A, 8000, White

by Keystone
What We like

FUNCTIONALITY: Designed for a room up to 350 sq. ft. with dehumidification up to 1.9 pints per hour. Has an adjustable 4-way air flow direction allows you to easily control the direction of the cool air!

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Product Features

  • Special 230-volt/25-amp electrical outlet required (Unit will not work with a standard 115V outlet).
  • POWERFUL HEATING OPTION: Supplemental heat capability provides an additional heat source to your main heat source when outdoor temperatures are above 45F for your convenience. The unit has 3 cooling speeds, 3 fan speeds, and 1 heat speed for multi-seasonal use.
  • EASY TO INSALL: with removable chassis for easy window and wall installation.
  • HEAT/COOL AIR CONDITIONER: 8,000 BTU cooling capacity / 3,500 BTU supplemental heating capacity to effectively cool or heat your apartment, bedroom, living room, or home to the temperature that is right for you.

Easy to insall: with removable chassis for easy window and wall installation. Special 230-volt/25-amp electrical outlet required (unit will not work with a standard 115v outlet). Heat/cool air conditioner: 8,000 btu cooling capacity / 3,500 btu supplemental heating capacity to effectively cool or heat your apartment, bedroom, living room, or home to the temperature that is right for you. Powerful heating option: supplemental heat capability provides an additional heat source to your main heat source when outdoor temperatures are above 45f for your convenience. the unit has 3 cooling speeds, 3 fan speeds, and 1 heat speed for multi-seasonal use.

3
9.3
SCORE
Keystone 10,000 BTU 230V Through-The-Wall Air Conditioner | 10,600 BTU Supplemental Heating | LCD Remote Control | Sleep Mode | 24H Timer | AC for Rooms up to 450 Sq. Ft. | KSTAT10-2HC

Keystone 10,000 BTU 230V Through-The-Wall Air Conditioner

10,600 BTU Supplemental Heating, LCD Remote Control, Sleep Mode, 24H Timer, AC for Rooms up to 450 Sq. Ft., KSTAT10-2HC

by Keystone
What We like

SUPERIOR COOLING AND HEATING: With a 9.5 energy efficiency ratio (EER), this 12,000 BTU through the wall air conditioner can effectively cool rooms up to 550 sq. ft and dehumidify up to 2.5 pints per hour. (Product is not suitable for window installation). Integrated electric heater provides supplemental heating of 10,600 BTUs.

more infoarrow_drop_down

Product Features

  • TEMPERATURE SENSING FOLLOW ME REMOTE CONTROL: With a thermostat built into the remote control, say good-bye to uneven room temperatures. The remote makes it easier to control the unit from anywhere in the room and its integrated thermostat signals the AC to cool the space based on where you are.
  • FRONT-ACCESS FILTER: Lets face it. Filters collect dust. With our front-access design, cleaning that dusty filter is a piece of cake. Simply pull it out, vacuum or rinse and dry, and slide back into place. No hassle and no disassembly required.
  • 230-VOLT/20-AMP ELECTRICAL OUTLET REQUIRED: This air conditioner has a 6.5ft power cord with a NEMA 6-20P grounding plug that will not fit a standard 115V electrical outlet.

230-volt/20-amp electrical outlet required: this air conditioner has a 6.5ft power cord with a nema 6-20p grounding plug that will not fit a standard 115v electrical outlet. Front-access filter: lets face it. filters collect dust. with our front-access design, cleaning that dusty filter is a piece of cake. simply pull it out, vacuum or rinse and dry, and slide back into place. no hassle and no disassembly required. Temperature sensing follow me remote control: with a thermostat built into the remote control, say good-bye to uneven room temperatures. the remote makes it easier to control the unit from anywhere in the room and its integrated thermostat signals the ac to cool the space based on where you are.

4
9.1
SCORE
KEYSTONE 25,000/24,700 LCD 25,000 BTU 230V Window Wall Air Conditioner Star | Follow Me Remote Control | Energy Saver Sleep Mode | Auto-Restart | AC for Rooms up to 1500 Sq. Ft | KSTAW25C, White

KEYSTONE 25,000/24,700 LCD 25,000 BTU 230V Window Wall Air Conditioner Star

Follow Me Remote Control, Energy Saver Sleep Mode, Auto-Restart, AC for Rooms up to 1500 Sq. Ft, KSTAW25C, White

by Keystone
What We like

QUICK TO COOL: The 25,000 BTU air conditioner for window-mounted installation is what you need to efficiently cool your apartment, bedroom, living room, or any environment!

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Product Features

  • TEMPERATURE SENSING FOLLOW ME REMOTE CONTROL: With a thermostat built into the remote control, say good-bye to uneven room temperatures. The remote makes it easier to control the unit from anywhere in the room and its integrated thermostat signals the AC to cool the space based on where you are.
  • ENERGY STAR RATED COOLING: Energy Star efficiency saves you money on your electric bill (12.1 EER).
  • Special 230-volt/20-amp electrical outlet required (Unit will not work with a standard 115V outlet).
  • FUNCTIONALITY: Cools a room up to 1,500 sq. ft. with dehumidification up to 5.7 pints per hour.

Energy star rated cooling: energy star efficiency saves you money on your electric bill (12.1 eer). Temperature sensing follow me remote control: with a thermostat built into the remote control, say good-bye to uneven room temperatures. the remote makes it easier to control the unit from anywhere in the room and its integrated thermostat signals the ac to cool the space based on where you are. Special 230-volt/20-amp electrical outlet required (unit will not work with a standard 115v outlet). Functionality: cools a room up to 1,500 sq. ft. with dehumidification up to 5.7 pints per hour.

5
8.7
SCORE
Keystone 8,000 BTU 115V Through-The-Wall Air Conditioner | Energy Star | Follow Me LCD Remote Control | Dehumidifier | Sleep Mode | 24H Timer | AC for Rooms up to 350 Sq. Ft. | KSTAT08-1C

Keystone 8,000 BTU 115V Through-The-Wall Air Conditioner

Energy Star, Follow Me LCD Remote Control, Dehumidifier, Sleep Mode, 24H Timer, AC for Rooms up to 350 Sq. Ft., KSTAT08-1C

by Keystone
What We like

FRONT-ACCESS FILTER: Lets face it. Filters collect dust. With our front-access design, cleaning that dusty filter is a piece of cake. Simply pull it out, vacuum or rinse and dry, and slide back into place for a reliable clean. No hassle and no disassembly required.

more infoarrow_drop_down

Product Features

  • ENERGY STAR-RATED COOLING: With a 10. 6 energy efficiency ratio (EER), this 8, 000 BTU through the wall air conditioner can effectively cool rooms up to 350 sq. ft. and dehumidify up to 2.1 pints per hour. (Product is not suitable for window installation).
  • TEMPERATURE SENSING FOLLOW ME REMOTE CONTROL: With a thermostat built into the remote control, say good-bye to uneven room temperatures. The remote makes it easier to control the unit from anywhere in the room and its integrated thermostat signals the AC to cool the space based on where you are.
  • ENERGY-CONSCIOUS OPTIONS: For climate control in your home, apartment, bedroom, or living room. While there are 3 cooling modes and 3 fan speeds pre-programmed, you have flexibility. The Auto option will automatically ramp up and down the fan speed to keep youre pre-set temperature constant. The Energy-saver mode conserves energy and saves you money by turning off the compressor once your desired temperature is reached.

Energy star-rated cooling: with a 10. 6 energy efficiency ratio (eer), this 8, 000 btu through the wall air conditioner can effectively cool rooms up to 350 sq. ft. and dehumidify up to 2.1 pints per hour. (product is not suitable for window installation). Energy-conscious options: for climate control in your home, apartment, bedroom, or living room. while there are 3 cooling modes and 3 fan speeds pre-programmed, you have flexibility. the auto option will automatically ramp up and down the fan speed to keep youre pre-set temperature constant. the energy-saver mode conserves energy and saves you money by turning off the compressor once your desired temperature is reached. Temperature sensing follow me remote control: with a thermostat built into the remote control, say good-bye to uneven room temperatures. the remote makes it easier to control the unit from anywhere in the room and its integrated thermostat signals the ac to cool the space based on where you are.

6
8.6
SCORE
KEYSTONE 12,000 BTU 115V Through-The-Wall Air Conditioner | Energy Star | Follow Me LCD Remote Control | Dehumidifier | Sleep Mode | 24H Timer | AC for Rooms up to 550 Sq. Ft. | KSTAT12-1C

KEYSTONE 12,000 BTU 115V Through-The-Wall Air Conditioner

Energy Star, Follow Me LCD Remote Control, Dehumidifier, Sleep Mode, 24H Timer, AC for Rooms up to 550 Sq. Ft., KSTAT12-1C

by Keystone
What We like

FRONT-ACCESS FILTER: Lets face it. Filters collect dust. With our front-access design, cleaning that dusty filter is a piece of cake. Simply pull it out, vacuum or rinse and dry, and slide back into place. No hassle and no disassembly required.

more infoarrow_drop_down

Product Features

  • ENERGY STAR-RATED COOLING: With a 10.5 energy efficiency ratio (EER), this 12,000 BTU through the wall air conditioner can effectively cool rooms up to 550 sq. ft and dehumidify up to 2.5 pints per hour. (Product is not suitable for window installation).
  • ENERGY-CONSCIOUS OPTIONS: While there are 3 cooling modes and 3 fan speeds pre-programmed, you have flexibility. The Auto option will automatically ramp up and down the fan speed to keep youre pre-set temperature constant. The Energy-saver mode conserves energy and saves you money by turning off the compressor once your desired temperature is reached.
  • TEMPERATURE SENSING FOLLOW ME REMOTE CONTROL: With a thermostat built into the remote control, say good-bye to uneven room temperatures. The remote makes it easier to control the unit from anywhere in the room and its integrated thermostat signals the AC to cool the space based on where you are.

Energy star-rated cooling: with a 10.5 energy efficiency ratio (eer), this 12,000 btu through the wall air conditioner can effectively cool rooms up to 550 sq. ft and dehumidify up to 2.5 pints per hour. (product is not suitable for window installation). Temperature sensing follow me remote control: with a thermostat built into the remote control, say good-bye to uneven room temperatures. the remote makes it easier to control the unit from anywhere in the room and its integrated thermostat signals the ac to cool the space based on where you are. Energy-conscious options: while there are 3 cooling modes and 3 fan speeds pre-programmed, you have flexibility. the auto option will automatically ramp up and down the fan speed to keep youre pre-set temperature constant. the energy-saver mode conserves energy and saves you money by turning off the compressor once your desired temperature is reached.

7
8.5
SCORE
Keystone 10,000 BTU 230V Through-The-Wall Air Conditioner | Energy Star | Follow Me LCD Remote Control | Dehumidifier | Sleep Mode | 24H Timer | AC for Rooms up to 450 Sq. Ft. | KSTAT10-2C

Keystone 10,000 BTU 230V Through-The-Wall Air Conditioner

Energy Star, Follow Me LCD Remote Control, Dehumidifier, Sleep Mode, 24H Timer, AC for Rooms up to 450 Sq. Ft., KSTAT10-2C

by Keystone
What We like

ENERGY STAR-RATED COOLING: With a 10.6 energy efficiency ratio (EER), this 10,000 BTU through the wall air conditioner can effectively cool rooms up to 450 sq. ft and dehumidify up to 2.3 pints per hour. (Product is not suitable for window installation). Perfect for large bedrooms, living rooms, or family rooms.

more infoarrow_drop_down

Product Features

  • FRONT-ACCESS FILTER: Lets face it. Filters collect dust. With our front-access design, cleaning that dusty filter is a piece of cake. Simply pull it out, vacuum or rinse and dry, and slide back into place. No hassle and no disassembly required.
  • TEMPERATURE SENSING FOLLOW ME REMOTE CONTROL: With a thermostat built into the remote control, say good-bye to uneven room temperatures. The remote makes it easier to control the unit from anywhere in the room and its integrated thermostat signals the AC to cool the space based on where you are.
  • 230-VOLT/20-AMP ELECTRICAL OUTLET REQUIRED: This air conditioner has a 6.5ft power cord with a NEMA 6-15P grounding plug that will not fit a standard 115V electrical outlet.

230-volt/20-amp electrical outlet required: this air conditioner has a 6.5ft power cord with a nema 6-15p grounding plug that will not fit a standard 115v electrical outlet. Temperature sensing follow me remote control: with a thermostat built into the remote control, say good-bye to uneven room temperatures. the remote makes it easier to control the unit from anywhere in the room and its integrated thermostat signals the ac to cool the space based on where you are. Front-access filter: lets face it. filters collect dust. with our front-access design, cleaning that dusty filter is a piece of cake. simply pull it out, vacuum or rinse and dry, and slide back into place. no hassle and no disassembly required.

8
8.5
SCORE
Keystone 12,000 BTU 230V Through-The-Wall Air Conditioner | 10,600 BTU Supplemental Heating | LCD Remote Control | Sleep Mode | 24H Timer | AC for Rooms up to 550 Sq. Ft. | KSTAT12-2HC

Keystone 12,000 BTU 230V Through-The-Wall Air Conditioner

10,600 BTU Supplemental Heating, LCD Remote Control, Sleep Mode, 24H Timer, AC for Rooms up to 550 Sq. Ft., KSTAT12-2HC

by Keystone
What We like

FRONT-ACCESS FILTER: Lets face it. Filters collect dust. With our front-access design, cleaning that dusty filter is a piece of cake. Simply pull it out, vacuum or rinse and dry, and slide back into place. No hassle and no disassembly required.

more infoarrow_drop_down

Product Features

  • TEMPERATURE SENSING FOLLOW ME REMOTE CONTROL: With a thermostat built into the remote control, say good-bye to uneven room temperatures. The remote makes it easier to control the unit from anywhere in the room and its integrated thermostat signals the AC to cool the space based on where you are.
  • SUPERIOR COOLING AND HEATING: With a 9.5 energy efficiency ratio (EER), this 12,000 BTU through the wall air conditioner can effectively cool rooms up to 550 sq. ft and dehumidify up to 2.5 pints per hour. (Product is not suitable for window installation)
  • 230-VOLT/20-AMP ELECTRICAL OUTLET REQUIRED: This air conditioner has a 6.5ft power cord with a NEMA 6-20P grounding plug that will not fit a standard 115V electrical outlet.

230-volt/20-amp electrical outlet required: this air conditioner has a 6.5ft power cord with a nema 6-20p grounding plug that will not fit a standard 115v electrical outlet. Temperature sensing follow me remote control: with a thermostat built into the remote control, say good-bye to uneven room temperatures. the remote makes it easier to control the unit from anywhere in the room and its integrated thermostat signals the ac to cool the space based on where you are. Superior cooling and heating: with a 9.5 energy efficiency ratio (eer), this 12,000 btu through the wall air conditioner can effectively cool rooms up to 550 sq. ft and dehumidify up to 2.5 pints per hour. (product is not suitable for window installation)

9
8.5
SCORE
Keystone 12,000 BTU 230V Through-The-Wall Air Conditioner | Energy Star | Follow Me LCD Remote Control | Dehumidifier | Sleep Mode | 24H Timer | AC for Rooms up to 550 Sq. Ft. | KSTAT12-2C

Keystone 12,000 BTU 230V Through-The-Wall Air Conditioner

Energy Star, Follow Me LCD Remote Control, Dehumidifier, Sleep Mode, 24H Timer, AC for Rooms up to 550 Sq. Ft., KSTAT12-2C

by Keystone
What We like

FRONT-ACCESS FILTER: Lets face it. Filters collect dust. With our front-access design, cleaning that dusty filter is a piece of cake. Simply pull it out, vacuum or rinse and dry, and slide back into place. No hassle and no disassembly required.

more infoarrow_drop_down

Product Features

  • TEMPERATURE SENSING FOLLOW ME REMOTE CONTROL: With a thermostat built into the remote control, say good-bye to uneven room temperatures. The remote makes it easier to control the unit from anywhere in the room and its integrated thermostat signals the AC to cool the space based on where you are.
  • 230-VOLT/20-AMP ELECTRICAL OUTLET REQUIRED: This air conditioner has a 6.5ft power cord with a NEMA 6-15P grounding plug that will not fit a standard 115V electrical outlet.
  • ENERGY STAR-RATED COOLING: With a 10.5 energy efficiency ratio (EER), this 12,000 BTU through the wall air conditioner can effectively cool rooms up to 550 sq. ft and dehumidify up to 2.5 pints per hour. (Product is not suitable for window installation)

230-volt/20-amp electrical outlet required: this air conditioner has a 6.5ft power cord with a nema 6-15p grounding plug that will not fit a standard 115v electrical outlet. Temperature sensing follow me remote control: with a thermostat built into the remote control, say good-bye to uneven room temperatures. the remote makes it easier to control the unit from anywhere in the room and its integrated thermostat signals the ac to cool the space based on where you are. Energy star-rated cooling: with a 10.5 energy efficiency ratio (eer), this 12,000 btu through the wall air conditioner can effectively cool rooms up to 550 sq. ft and dehumidify up to 2.5 pints per hour. (product is not suitable for window installation)

10
8.3
SCORE
Keystone 14,000 BTU 230V Through-The-Wall Air Conditioner | Follow Me LCD Remote Control | Sleep Mode | Auto-Restart | 24H Timer | LED Display | AC for Rooms up to 700 Sq. Ft. | KSTAT14-2C

Keystone 14,000 BTU 230V Through-The-Wall Air Conditioner

Follow Me LCD Remote Control, Sleep Mode, Auto-Restart, 24H Timer, LED Display, AC for Rooms up to 700 Sq. Ft., KSTAT14-2C

by Keystone
What We like

FRONT-ACCESS FILTER: Lets face it. Filters collect dust. With our front-access design, cleaning that dusty filter is a piece of cake. Simply pull it out, vacuum or rinse and dry, and slide back into place. No hassle and no disassembly required.

more infoarrow_drop_down

Product Features

  • TEMPERATURE SENSING FOLLOW ME REMOTE CONTROL: With a thermostat built into the remote control, say good-bye to uneven room temperatures. The remote makes it easier to control the unit from anywhere in the room and its integrated thermostat signals the AC to cool the space based on where you are.
  • 230-VOLT/20-AMP ELECTRICAL OUTLET REQUIRED: This air conditioner has a 6.5ft power cord with a NEMA 6-15P grounding plug that will not fit a standard 115V electrical outlet.
  • LARGE-SCALE COOLING: With a 9.5 energy efficiency ratio (EER), this 14,000 BTU through the wall air conditioner can effectively cool rooms up to 700 sq. ft and dehumidify up to 2.9 pints per hour. (Product is not suitable for window installation)

Large-scale cooling: with a 9.5 energy efficiency ratio (eer), this 14,000 btu through the wall air conditioner can effectively cool rooms up to 700 sq. ft and dehumidify up to 2.9 pints per hour. (product is not suitable for window installation) 230-volt/20-amp electrical outlet required: this air conditioner has a 6.5ft power cord with a nema 6-15p grounding plug that will not fit a standard 115v electrical outlet. Temperature sensing follow me remote control: with a thermostat built into the remote control, say good-bye to uneven room temperatures. the remote makes it easier to control the unit from anywhere in the room and its integrated thermostat signals the ac to cool the space based on where you are.

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