Keystone - Summit 115V 550 Sq. Ft. 12,000 BTU Smart Mini Split Air Conditioner 12,400 BTU Heater 23 SEER2 - White
Reviews coming soon
About this product
The Keystone Summit 12,000 BTU Mini Split AC and Heating System delivers efficient, year-round comfort for bedrooms, offices, additions, studios, and other spaces up to 550 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 23 SEER2 efficiency, advanced R454B refrigerant, and inverter-driven technology, it continuously adjusts output to maintain a more consistent indoor temperature while reducing energy consumption compared to many traditional systems. Built for dependable operation in demanding climates, this mini split performs in outdoor temperatures ranging from 5°F to 131°F. The indoor unit operates as low as 30 dB on low fan. Multiple comfort modes including Cool, Heat, Dry, Fan, Turbo, Sleep, and ECO allow for customized comfort throughout the day. Keystone customer service helps coordinate professional installation to save time & effort, while premium construction and an up to 7-year warranty support trusted, reliable performance.
Recommended Room Size
550 square'Features
23 SEER2 Efficiency
The inverter-driven system delivers 12,000 BTU cooling and 12,400 BTU heating, adjusting output as conditions change to support steady, efficient comfort in spaces up to 550 sq ft.
Targeted Comfort for Everyday Spaces
Ideal for homeowners, property managers, and office managers seeking focused heating and cooling for bedrooms, garages, sunrooms, home offices, and similar spaces.
Built for Changing Seasons
Designed to operate in outdoor temperatures from 5°F to 131°F, the system provides dependable heating and cooling through hot summers, cold weather, and transitional seasons.
Quiet for Sleep and Focus
The indoor unit runs at 30 dB on low fan speed, helping minimize disruption while sleeping, working, studying, joining calls, watching TV, or relaxing.
Cleaner Cooling
This advanced Summit series combines high efficiency with a more eco-conscious R454B refrigerant that reduces environmental impact and supports energy-efficient operation compared to many older refrigerant systems.
Specifications
- Recommended Room Size550 square feetBTU Cooling Rating12000 british thermal unitsNumber of Cool Settings5Number of Fan Speeds5Airflow Rate500 cubic feet per minuteRemote ControlYes
Reviews
This product doesn't have any reviews yet.
Compare similar products
The Keystone Summit 12,000 BTU Mini Split AC and Heating System delivers efficient, year-round comfort for bedrooms, offices, additions, studios, and other spaces up to 550 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 23 SEER2 efficiency, advanced R454B refrigerant, and inverter-driven technology, it continuously adjusts output to maintain a more consistent indoor temperature while reducing energy consumption compared to many traditional systems. Built for dependable operation in demanding climates, this mini split performs in outdoor temperatures ranging from 5°F to 131°F. The indoor unit operates as low as 30 dB on low fan. Multiple comfort modes including Cool, Heat, Dry, Fan, Turbo, Sleep, and ECO allow for customized comfort throughout the day. Keystone customer service helps coordinate professional installation to save time & effort, while premium construction and an up to 7-year warranty support trusted, reliable performance.
The DELLA Mini Split is a high-efficiency SEER2 Energy Star heat pump. It features Hyper Heat technology down to -13°F, smart Alexa control, and whisper-quiet operation. With its award-winning 2025 Red Dot Design and a included 16.4ft install kit, this ductless system offers efficient, all-season comfort with indirect, soft airflow.
The DELLA Mini Split is a high-efficiency SEER2 Energy Star heat pump. It features Hyper Heat technology down to -22°F, smart Alexa control, and whisper-quiet operation. With its award-winning 2025 Red Dot Design and a included 16.4ft install kit, this ductless system offers efficient, all-season comfort with indirect, soft airflow.
This ductless mini split air conditioner and heat pump delivers year round heating and cooling for spaces up to 750 square feet. The 12000 BTU inverter system reaches a 22 SEER2 efficiency rating and uses R32 refrigerant with a DC inverter compressor for steady temperature control. It operates in ambient conditions from 5°F to 126°F, suiting living rooms, bedrooms, garages, and basements. Built in WiFi lets you manage the unit through the Smart Life app and pair it with Alexa or Google Assistant for voice control. Seven operating modes and five fan speeds cover cooling, heating, dehumidifying, and air circulation, while sound levels drop as low as 20 dB for restful nights. A one touch 136°F self clean cycle helps keep the coil fresh and reduce odors. The pre charged system arrives with pre flared copper lines, mounting hardware, a remote, and a communication cable for a straightforward installation.
Specs
Be the first to ask a question.
We’ll try to get your question answered within 24 hours by a Best Buy customer or brand representative.
Find more like this
Costway 17000 BTU Wifi Enabled Mini Split Air Conditioner & Heater Works with Alexa
$639.99The price was $1,159.98Lithzen 12000 BTU Mini Split Air Conditioner & Heater, 208/230V 18.2 SEER2 Wifi Enabled
$489.49The price was $499.99Costway 12000 BTU 20 SEER2 115V Wifi Enabled Mini Split Air Conditioner & Heater with Installation Kit
$574.99The price was $1,009.98Lithzen 24000 BTU Mini Split AC/Heating System, 17 SEER2 208/230V, 2 Ton Heat Pump
$859.99The price was $879.99Costway 12000 BTU Mini Split Air Conditioner & Heater 20 SEER2 115V with Heat Pump, Full Installation Kit
$529.99The price was $1,089.98Costway 18000 BTU Mini Split Air Conditioner & Heater with Heat Pump, Full Installation Kit
$799.99The price was $1,399.98Costway 12000 BTU Mini Split Air Conditioner, 21 SEER2 208-230V Inverter AC Unit Cools Rooms up to 750 Sq. Ft
$509.99The price was $919.98Lithzen 12000 BTU Mini Split AC/Heating System with 1 Ton Heat Pump & Installation Kit 115V
$429.99The price was $779.99Costway 24,000 BTU Mini Split Air Conditioner AC Unit with Heat Pump & Alexa Googlehome Remote Control
$1,129.99The price was $2,599.98Costway 12,000 BTU Mini Split Air Conditioner AC Unit with Heat Pump & Remote Control
$549.49The price was $1,399.98Lithzen 18000 BTU Mini Split AC/Heating System, 17 SEER2 208/230V, 1.5 Ton Heat Pump
$599.99The price was $629.99Costway 18000 BTU Mini Split Air Conditioner & Heater 25 SEER2 208-230V AC Unit
$1,049.99The price was $1,889.98Costway 11500 BTU Wifi Enabled Mini Split Air Conditioner & Heater Works with Alexa 750 Sq.Ft 17 SEER2 115V
$559.49The price was $1,029.98Costway 9000 BTU Split Air Conditioner & Heater Wall Mount AC Unit with Remote Control
$479.49The price was $889.98
More to consider
Sugift 12000 BTU Mini Split Air Conditioner and Heat Pump 22 SEER2 Inverter Ductless AC with Heating Cooling and WiFi
$576.99The price was $1,199.99Waykar 12,000 BTU Mini Split Air Conditioner and Heater, 115V Inverter System with Remote Control
$599.99The price was $1,169.99Costway 12000 BTU Mini Split Air Conditioner & Heater 17 SEER2 208-230V Energy Efficient
$509.99The price was $1,069.98Costway 12000 BTU Mini Split Air Conditioner & Heater 20 SEER2 115V with Heat Pump, Full Installation Kit
$529.99The price was $1,089.98
Innovate your everyday Sponsored
Costway 17000 BTU Wifi Enabled Mini Split Air Conditioner & Heater Works with Alexa
$639.99The price was $1,159.98Costway 12000 BTU Mini Split Air Conditioner & Heater with 1 Ton Heat Pump Installation Kit
$668.99The price was $1,249.98
Discover related products
SIMZLIFE 130 Can Beverage Refrigerator and Cooler with Glass Door for Home, 17.3 in D, 31.3 in H, 3.2 cubic feet
$199.99The price was $209.99Ecozy Nugget Ice Maker Countertop with Handle, 33 lbs Per Day with Ice Bags and Scoop
$139.99The price was $299.99Costway 42 Inches Ultra-Thin Electric Fireplace Wall-Mounted & Recessed Fireplace Heater
$189.99The price was $349.98Waykar 150 Pint Energy Star Dehumidifier with Bucket and Auto Defrost 7,000 Sq. Ft. for Bedroom and Basement
$219.99The price was $279.99Ninja Foodi 10-in-1 Digital Air Fry Oven, Toaster, Flip-Away Storage, Dehydrate, Keep Warm
Black Friday Deal$80.99The price was $169.99Ninja DualBrew XL Hot & Iced Coffee Maker, Single-Serve, Compatible with K-Cups & 14-Cup Drip Coffee Maker
$79.95The price was $159.99
Keep exploring
Costway 9000 BTU 21 SEER2 208/230V Wifi Enabled Mini Split Air Conditioner & Heater with Installation Kit
$524.99The price was $889.98Costway 18k BTU 2 Zone 12k + 12k BTU Mini Split Air Conditioner 22 SEER2 208-230V Wifi Enabled
$1,338.99The price was $2,369.98Costway 9000 BTU 20 SEER2 115V Wifi Enabled Mini Split Air Conditioner & Heater with Installation Kit
$499.99The price was $899.98Costway 12000 BTU Mini Split Air Conditioner, 21 SEER2 208-230V Inverter AC Unit Cools Rooms up to 750 Sq. Ft
$509.99The price was $919.98Costway X-Pro 35000 BTU 3 Zone Concealed Ducted Mini Split AC, 22.5 SEER2, WiFi Enabled
$3,733.99The price was $6,929.99Lithzen 18000 BTU Mini Split AC/Heating System, 17 SEER2 208/230V, 1.5 Ton Heat Pump
$599.99The price was $629.99Costway X-Pro 18000 BTU 2 Zone 9K + 9K Mini Split Air Conditioner, WiFi Enabled, 24 SEER2
$1,419.99The price was $2,569.99Costway 12000 BTU Mini Split Air Conditioner & Heater 17 SEER2 208-230V Energy Efficient
$509.99The price was $1,069.98Costway 24000 BTU 20 SEER2 208/230V Wifi Enabled Mini Split Air Conditioner & Heater with Installation Kit
$1,059.99The price was $1,909.98Costway 9000 BTU Mini Split Air Conditioner & Heater with 0.75 Ton Pre-Charged Heat Pump
$513.99The price was $959.98Costway 36k BTU 2 Zone 24k + 24k BTU Mini Split Air Conditioner 23 SEER2 208-230V Wifi Enabled
$2,521.99The price was $4,679.99
