Best AC Heater Combo Window Unit 12000 BTU in 2025
Updated on June 2025
#1
Recommended
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- Powerful cooling and heating with 12,000 BTU for spaces up to 550 sq. ft.
- User-friendly electronic control panel featuring digital display, multiple cooling speeds, and programmable timer.
- Quick installation with a window mounting kit designed for minimum window height of 19.5 inches.
- Washable filter helps maintain air quality by capturing dust and debris, ensuring optimal unit performance.
- Convenient remote control allows easy adjustments from a distance.
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- Powerful cooling and heating with 12,000 BTU for spaces up to 550 sq. ft.
- User-friendly electronic control panel featuring digital display, multiple cooling speeds, and programmable timer.
- Quick installation with a window mounting kit designed for minimum window height of 19.5 inches.
- Washable filter helps maintain air quality by capturing dust and debris, ensuring optimal unit performance.
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#2
Value for Money
15% Off
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- Multi-season functionality with powerful cooling and supplemental heat for rooms up to 550 sq. ft.; heat pump function ineffective below 41°F.
- User-friendly with LED display, 5 modes, 3 speed settings, and a 24-hr timer. Operate via control panel, remote, SmartHome app, or voice with Alexa/Google Assistant.
- Energy-efficient unit certified by Energy Star; features variable-speed inverter technology for up to 35% energy savings, offering 12,000 BTUs and easy maintenance with a washable filter.
- Quiet operation at 45 dBA, ideal for uninterrupted activities like meetings or TV watching while providing a soothing background noise.
- Designed for double hung windows (24-38.5 inches wide); measures 19.41"W x 22.17"D x 13.9"H. Comes with remote control and installation kit.
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- Multi-season functionality with powerful cooling and supplemental heat for rooms up to 550 sq. ft.; heat pump function ineffective below 41°F.
- User-friendly with LED display, 5 modes, 3 speed settings, and a 24-hr timer. Operate via control panel, remote, SmartHome app, or voice with Alexa/Google Assistant.
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#3
16% Off
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- Lightweight and portable design with rolling wheels for easy movement between rooms or offices.
- Functions as a built-in dehumidifier, effectively lowering humidity levels in addition to cooling.
- Four operational modes: cooling, heating, dehumidifying, and fan, with automatic air circulation.
- Equipped with a remote control for easy adjustment of settings including temperature, mode, and timer.
- Provides year-round comfort with 12,000 BTU of cooling and heating power, suitable for spaces up to 550 sq. ft. and operating quietly at 56-59 dBa.
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- Lightweight and portable design with rolling wheels for easy movement between rooms or offices.
- Functions as a built-in dehumidifier, effectively lowering humidity levels in addition to cooling.
- Four operational modes: cooling, heating, dehumidifying, and fan, with automatic air circulation.
- Equipped with a remote control for easy adjustment of settings including temperature, mode, and timer.
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#4
7% Off
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- Efficiently cools rooms up to 150 sq ft with 5000 BTU capacity.
- Ideal for smaller spaces such as bedrooms, studios, and home offices.
- Operates quietly, making it suitable for nighttime use.
- Offers 2 cooling modes and 2 fan speeds with 10 temperature settings for personalized comfort.
- Simple installation in double hung windows with included EZ Mount kit.
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- Efficiently cools rooms up to 150 sq ft with 5000 BTU capacity.
- Ideal for smaller spaces such as bedrooms, studios, and home offices.
- Operates quietly, making it suitable for nighttime use.
- Offers 2 cooling modes and 2 fan speeds with 10 temperature settings for personalized comfort.
- Simple installation in double hung windows with included EZ Mount kit.
#5
7% Off
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- All-season climate control with 12000BTU cooling and heating for rooms up to 550 square feet.
- Features LED display, 5 operating modes, 3 fan speeds, 24-hour timer, and washable front-access filter.
- WIFI-enabled with voice control compatibility for remote adjustments and routines.
- Easy installation with included side panels and comprehensive manual for various window sizes.
- Covered by a 1-year warranty for customer assurance.
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- All-season climate control with 12000BTU cooling and heating for rooms up to 550 square feet.
- Features LED display, 5 operating modes, 3 fan speeds, 24-hour timer, and washable front-access filter.
- WIFI-enabled with voice control compatibility for remote adjustments and routines.
- Easy installation with included side panels and comprehensive manual for various window sizes.
- Covered by a 1-year warranty for customer assurance.
#6
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- Cools and heats rooms up to 550 square feet effectively with a 12,000 BTU capacity.
- User-friendly operation with a range of settings including fan speed, timer, and modes, easily controlled via a digital display or remote.
- Quick and straightforward assembly with included panels and a detailed manual; confirm window size and voltage before purchasing.
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- Cools and heats rooms up to 550 square feet effectively with a 12,000 BTU capacity.
- User-friendly operation with a range of settings including fan speed, timer, and modes, easily controlled via a digital display or remote.
- Quick and straightforward assembly with included panels and a detailed manual; confirm window size and voltage before purchasing.
#7
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- Personal air conditioner and heater suitable for rooms up to 550 sq. ft.
- 7000 BTU cooling (12000 BTU ASHRAE), also functions as a dehumidifier and fan; includes remote and LED display control.
- Features include washable filter, auto water evaporation, and a 24-hour timer for temperature management.
- Easy to move with built-in casters and side handles for convenient relocation between rooms.
- Includes an installation kit with a window kit for straightforward setup and effective airflow.
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- Personal air conditioner and heater suitable for rooms up to 550 sq. ft.
- 7000 BTU cooling (12000 BTU ASHRAE), also functions as a dehumidifier and fan; includes remote and LED display control.
- Features include washable filter, auto water evaporation, and a 24-hour timer for temperature management.
- Easy to move with built-in casters and side handles for convenient relocation between rooms.
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#8
18% Off
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- 12,000 BTU with 3 cooling and fan speeds for personalized comfort; includes a 24-hour timer and 4-way air deflection
- Remote control capability via LG ThinQ Technology; compatible with Alexa and Google Assistant for voice commands
- Operates quietly at 52dB in low mode for a comfortable environment
- Auto Restart feature restores operation automatically after power interruptions
- Efficiently cools spaces up to 550 square feet, suitable for large rooms like kitchens and living areas
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- 12,000 BTU with 3 cooling and fan speeds for personalized comfort; includes a 24-hour timer and 4-way air deflection
- Remote control capability via LG ThinQ Technology; compatible with Alexa and Google Assistant for voice commands
- Operates quietly at 52dB in low mode for a comfortable environment
- Auto Restart feature restores operation automatically after power interruptions
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#9
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- Advanced heat pump technology offers twice the heating efficiency of traditional systems, providing quick and energy-efficient warmth.
- 8,000 BTU cooling and heating capacity suitable for medium-sized rooms up to 350 sq. ft., ensuring reliable year-round climate control.
- Wi-Fi-enabled SmartHQ app allows remote access to monitor and adjust your AC settings for optimal comfort when you return home.
- Offers adjustable fan speeds for customized heating and cooling, enhancing energy efficiency and user comfort.
- Eco Mode conserves energy by turning off the fan once the desired temperature is reached, contributing to lower utility bills.
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- Advanced heat pump technology offers twice the heating efficiency of traditional systems, providing quick and energy-efficient warmth.
- 8,000 BTU cooling and heating capacity suitable for medium-sized rooms up to 350 sq. ft., ensuring reliable year-round climate control.
- Wi-Fi-enabled SmartHQ app allows remote access to monitor and adjust your AC settings for optimal comfort when you return home.
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#10
16% Off
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- 4-in-1 Climate Control with Fan, Dry, Cool, and Heat modes for year-round comfort.
- Easy installation with a window kit for a quick setup.
- Washable filter for simple maintenance and better air quality.
- User-friendly controls and remote for temperature adjustments.
- 2-year warranty for durability and reliability.
- Smart home integration with remote control options.
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- 4-in-1 Climate Control with Fan, Dry, Cool, and Heat modes for year-round comfort.
- Easy installation with a window kit for a quick setup.
- Washable filter for simple maintenance and better air quality.
- User-friendly controls and remote for temperature adjustments.
- 2-year warranty for durability and reliability.
- Smart home integration with remote control options.
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