HOT ! Keystone - 10, 000 BTU Through the Wall Heat/Cool, R32 - KSTAT10-2HD

Keystone - 10, 000 BTU Through the Wall Heat/Cool, R32 -  KSTAT10-2HD

The Keystone 10,000 BTU 230V through-the-wall air conditioner with 10,600 BTU Supplemental Heat Capability is perfect for rooms up to 450 square feet. In addition to cooling, this versatile unit also offers supplemental heat capability, providing you with an additional heat source to your main heat source when outdoor temperatures are above 23 degrees Fahrenheit. It has electronic controls with LED display and a temperature sensing LCD remote control allowing you to conveniently see, set and maintain the room temperature from across the room. Money saving features include energy saver mode, sleep mode and a programmable 24-hour timer. This unit is designed for through-the-wall installation and is not designed for standard window installation (WALL SLEEVE SOLD SEPARATELY). This unit also requires a special 230-volt/20-amp electrical outlet and will not operate with a standard 115V household electrical outlet.

Features

• 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.


• 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.


• FRONT-ACCESS FILTER: Let’s 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.


• GUARANTEED FIT: This air conditioner will fit in your existing 24.5” to 27” sleeve. We guarantee it. At 20.3” D x 24.2” W x 14.5” H, we provide the foam seals and installation kit necessary to retrofit your existing sleeve. If you don’t have a sleeve, the matching Keystone KSTSLV1 is also available for purchase (sold separately).


• 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 you’re 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.


• Through-the-wall installation (Not suitable for window installation)


• Standard, universal interior trim kit for existing wall sleeve included (New wall sleeve sold separately: KSTSLV1)


• Special 230-volt/20-amp electrical outlet required (Unit will not work with a standard 115V outlet)


• 10,000 BTU cooling capacity / 10,600 BTU supplemental heating capacity


• Supplemental heat capability provides an additional heat source to your main heat source when outdoor temperatures are above 23°F


• Designed for a room up to 450 sq. ft.


• Dehumidification up to 2.3 pints per hour


• Electronic controls with LED display allows you to easily select options with the touch of a button


• Temperature sensing LCD remote control allows you control the temperature from across the room


• Auto-restart saves your settings for when power is restored to the unit


• Adjustable 4-way air flow direction allows you to easily control the direction of the cool air


• 3 cooling speeds, 3 fan speeds, and 1 heat speed


• Auto function determines the fan speed depending on the set temperature


• Programmable 24-hour on/off timer cools on your schedule


• Energy-saver mode conserves energy and saves you money


• Sleep mode gradually increases room temperature after being activated


• Easy-clean mesh filter with Check Filter alert on the unit


• 6.5 ft. power cord with NEMA 6-15P grounding plug makes extension cords unnecessary


• U.L. safety listing

Specifications

Downloads & Manual

• Specification Sheet


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  Product Manual
  


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  Warranty Guide
  


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  Energy Guide
  


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  CA Prop 65 Warning Label
  


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  CA Prop 65 Retail POP
  


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  Product Video
  


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  Custom Spec Sheet
  

What our Experts Think

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  All‑Season Comfort: Built‑in heat & cool functions maximize usability year‑round — strong relevance for through‑the‑wall heat/cool AC searches.

  
  


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  Right‑Sized 10,000 BTU: Perfect for small to medium rooms (~350 sq ft), matching buyer intent like 10,000 BTU wall AC.

  
  


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  Eco‑Friendly R32 Refrigerant: Modern low‑GWP refrigerant enhances efficiency and appeals to eco‑friendly air conditioner queries.

  
  


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  Energy‑Efficient Design: Helps keep utility costs down — key for efficient through‑the‑wall AC SEO.

  
  


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  Quiet & Reliable Operation: Smooth, low‑noise performance aligns with popular quiet wall AC search terms.

  
  


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  Space‑Saving Installation: Through‑the‑wall fit preserves window space and supports space‑saving AC interests.

  
  

Q&A

Q: What does this unit do?A: The Keystone KSTAT10‑2HD is a through‑the‑wall air conditioner with supplemental heat, offering both 10,000 BTU cooling and 10,600 BTU heating for year‑round comfort.

Q: What space can it cool or heat?A: It’s designed to cool and heat rooms up to ~450 sq ft, ideal for medium bedrooms, living areas, or home offices.

Q: What installation and power requirements are needed?A: This unit requires through‑the‑wall installation (not for windows) and a 230 V/20 A dedicated outlet, not compatible with standard 115 V household outlets.

Q: Does it include a remote control?A: Yes — it comes with a temperature‑sensing LCD remote that measures and maintains comfort where you are in the room.

Q: What features help efficiency and comfort?A: It has energy saver mode, sleep mode, programmable 24‑hour timer, auto‑restart, dehumidification, and adjustable 4‑way airflow for tailored comfort.

Q: Is the heating mode a primary heat source?A: The heating is supplemental — it supports your main system at moderate temperatures but is not a primary home heat source.

Maintenance Tips

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  Clean the washable air filter every 30 days to maintain airflow and heating/cooling efficiency

  
  


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  Vacuum or gently brush evaporator and condenser coils seasonally to prevent dust buildup

  
  


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  Keep rear and side vents clear for optimal airflow

  
  


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  Ensure wall sleeve is properly sealed to prevent energy loss

  
  


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  Check and clear drainage openings to avoid water buildup during cooling

  
  


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  Unplug, clean, and cover the unit during off-season to extend lifespan