HOT ! Keystone - 8, 000 BTU Through the Wall Heat/Cool, R32 - KSTAT08-1HD

Keystone - 8, 000 BTU Through the Wall Heat/Cool, R32  -  KSTAT08-1HD

The Keystone 10,000 BTU 115V through-the-wall air conditioner with Follow Me remote control is perfect for cooling a room up to 450 square feet. 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).

Features

• 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.


• 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 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.


• 2016 Energy Star: 10.6 Energy Efficiency Ratio (EER)


• 10,000 BTU air conditioner for 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)


• 7-ft. LCDI power cord with NEMA 5-15P plug uses standard 115V electrical outlet


• Cools a room up to 450 sq. ft. with 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, plus Auto Cool for cooling flexibility


• 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


• U.L. safety listing

Specifications

Downloads & Manual

• Specification Sheet


• 
  Product Manual
  


• 
  Installation Guide
  


• 
  Warranty Guide
  


• 
  Energy Guide
  


• 
  CA Prop 65 Warning Label
  


• 
  CA Prop 65 Retail POP
  


• 
  Product Video
  


• 
  Custom Spec Sheet
  

What our Experts Think

• 
  

  All‑Season Comfort: Heat and cool capability makes this unit versatile year‑round — strong SEO for heat/cool through‑the‑wall AC.

  
  


• 
  

  Right‑Sized 8,000 BTU: Ideal for small rooms (~250–350 sq ft), aligning with search intent like 8,000 BTU wall AC.

  
  


• 
  

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

  
  


• 
  

  Energy‑Efficient Design: Helps reduce utility costs — a key term for energy‑saving wall AC.

  
  


• 
  

  Quiet, Reliable Operation: Smooth performance with minimal noise supports quiet through‑the‑wall AC interest.

  
  


• 
  

  Space‑Saving Installation: Through‑the‑wall fit preserves window space and boosts relevance for space‑saving AC unit searches.

  
  

Q&A

Q: What is the Keystone KSTAT08‑1HD designed for?A: The Keystone KSTAT08‑1HD is a through‑the‑wall air conditioner with supplemental heat, engineered for permanent wall installation (not for windows).

Q: What performance does it deliver?A: It provides 8,000 BTU cooling and 4,200 BTU supplemental heating, ideal for rooms up to ~350 sq ft such as bedrooms, small living rooms, or home offices.

Q: What convenience and control features are included?A: This unit includes electronic controls with LED display, temperature‑sensing LCD remote control, auto‑restart, programmable 24‑hour timer, energy saver and sleep modes, and adjustable 4‑way airflow.

Q: Is the heating mode a primary heat source?A: No — the heat function is supplemental and supports your primary heating system when outdoor temps are moderate.

Q: How does it help with comfort beyond cooling and heat?A: It dehumidifies up to ~2.1 pints per hour, improving indoor comfort in humid conditions.

Q: What power requirements are needed?A: It runs on a 115 V outlet with a 7‑ft. LCDI power cord and NEMA 5‑15P plug, so no special wiring is required.

Q: How easy is maintenance?A: A washable mesh filter with Check‑Filter alert makes upkeep simple.

Maintenance Tips

• 
  

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

  
  


• 
  

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

  
  


• 
  

  Keep rear and side vents clear for optimal airflow

  
  


• 
  

  Ensure wall sleeve is properly sealed to minimize energy loss

  
  


• 
  

  Check and clear drainage openings to avoid water buildup during cooling

  
  


• 
  

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