Keystone - Core 115V 400 Sq. Ft. 9,000 BTU Smart Mini Split Air Conditioner 10,000 BTU Heater - White
The Keystone Core 9,000 BTU Mini Split AC and Heating System delivers quiet, energy-efficient comfort for bedrooms, offices, and other spaces up to 400 sq. ft. This 115V Energy Star-certified ductless system includes indoor and outdoor units and is designed for professional installation to help ensure proper setup, optimized performance, and reliable long-term use. With up to 20 SEER2 efficiency, advanced inverter technology, and an optimized R32 refrigerant system, it continuously adjusts output to help reduce energy use while maintaining steady indoor comfort without bulky ductwork. Built for dependable year-round performance, this mini split operates in outdoor temperatures ranging from 5°F to 127°F for reliable comfort through changing seasons. Indoor sound levels as low as 28 dB make this Core system quieter than a whisper. Multiple modes including Cool, Heat, Dry, Fan, Turbo, Sleep, and ECO allow for customized comfort throughout the day. Wi-Fi, app control, and smart home compatibility with smart home devices provide convenient remote access. Keystone customer service helps coordinate professional installation to save time and effort, while durable construction and an up to 7-year warranty support trusted, reliable performance.
Up to 20 SEER2 Efficiency
The inverter-driven system delivers 9,000 BTU cooling and 10,000 BTU heating, adjusting output as conditions change to support steady, efficient comfort in spaces up to 400 sq ft.
Targeted Comfort for Small Spaces
Ideal for homeowners, property managers, and office managers seeking focused heating and cooling for small bedrooms, home offices, private offices, studies, and similar rooms.
Built for Changing Seasons
Designed to operate in outdoor temperatures from 5°F to 127°F, the system provides dependable heating and cooling through hot summers, cold weather, and transitional seasons.
Quiet for Sleep and Focus
The indoor unit operates at sound levels as low as 28 dB, helping minimize disruption while sleeping, working, studying, joining calls, watching TV, or relaxing.
Control Comfort Your Way
Use the app or compatible voice control to adjust temperatures, modes, schedules, and routines remotely. Choose Cool, Heat, Dry, Fan, Turbo, Sleep, or ECO mode to match daily comfort needs.Uses R32 refrigerant.
| Manufacturer | Keystone |
|---|---|
| Set Product as New from Date | Sep 3, 2026 |
| Set Product as New to Date | Nov 3, 2026 |
| Specification | Brand: Keystone Model Number: KYSTNTV09CB1 Product Name: Core 115V 400 Sq. Ft. 9,000 BTU Smart Mini Split Air Conditioner 10,000 BTU Heater Color: White Indoor Unit Dimensions: 7.48"L x 31.93"W x 12.05"H Outdoor Unit Dimensions: 11.42"L x 30.98"W x 19.61"H Cord Length: 0 inches Recommended Room Size: 400 square feet BTU Cooling Rating: 9000 british thermal units BTU Heat Rating: 10000 british thermal units Number of Cool Settings: 5 Number of Fan Speeds: 5 Airflow Rate: 335 cubic feet per minute Maximum Noise Level: 42 decibels adjusted Minimum Noise Level: 30 decibels adjusted Remote Control: Yes Control Type: Button Integrated Heater: Yes Filter Indicator Light(s): No Filter Type: Washable Sleep Mode: Yes Timer: Yes Auto Shut-Off: No Number of Indoor Units: 1 Number of Outdoor Units: 1 Energy Efficiency Ratio (EER2): 12 Voltage Requirement: 115 Seasonal Energy Efficiency Ratio (SEER2): 21 Amperage: 17 amperes ENERGY STAR Certified: No App Compatible: Yes Works With: Amazon Alexa Wireless Connectivity: Wi-Fi Number of Remotes Included: 1 Indoor Unit1 Placement: Wall mount Air Conditioner Type: Split Warranty - Parts: 7 years |
| Hard Drive | 8 GB |