Finding a reliable window air conditioner heater can be challenging, especially when balancing performance, energy efficiency, and ease of installation. The Keystone 23,200 BTU Window Air Conditioner with Heat stands out for its powerful cooling and heating capacity, ideal for large rooms. The Bonnlo 12000BTU with Wi-Fi offers smart control and versatility, perfect for tech-savvy users. The main tradeoffs often involve balancing upfront costs against ongoing energy expenses and installation complexity. Keep reading to see which models best meet different needs and budgets.

15
compared
8
brands
6
room sizes
230V/60Hz
max voltage
Which window air conditioner heater should you buy?
★ Top Pick
LG 23,000 BTU 230V Window-Moun
Best Overall for Large Spaces with Dual Functionality
Exceptional cooling capacity up to 1400 sq ft
See on Amazon →
Individuals needing a quiet, reliable AC for small bedrooms or offices up to 250 sq. ft.
Frigidaire 6,000 BTU Window Ai
Quiet operation at 52 dBA, suitable for bedrooms
View on Amazon →
Homeowners seeking a versatile, smart-controlled AC and heater for large rooms up to 550 sq. ft.
Bonnlo 12000BTU Window Air Con
Powerful dual heating and cooling for year-round comfort
View on Amazon →
Renters or small homeowners seeking a budget-friendly, multi-function AC and heater for rooms up to 350 sq. ft.
ROVSUN 8000 BTU Window Air Con
Provides cooling, heating, dehumidification, and fan modes
View on Amazon →
Homeowners with large living spaces or basements who need powerful, combined cooling and heating.
Keystone 23,200 BTU Window Air
Powerful cooling for large spaces up to 1,500 sq. ft.
View on Amazon →
Voltage — compared
Bonnlo 12000BTU Window Air Con230V/60Hz
ROVSUN 8000 BTU Window Air Con115V/60Hz
Keystone 23,200 BTU Window Air230V
LG 23,000 BTU 230V Window-Moun230V
Keystone 12,000 BTU Window Air230V
LG 7,600 BTU Window Air Condit115V
Garvee 8000 BTU Window Air Con115V/60Hz
ROVSUN 11000 BTU Inverter Wind115V
Pros & cons at a glance
Frigidaire 6,000 BTU Window Ai
✓ Quiet operation at 52 dBA, suitable for bedrooms
✗ Limited to small spaces up to 250 sq. ft.
Bonnlo 12000BTU Window Air Con
✓ Powerful dual heating and cooling for year-round comfort
✗ Requires window mounting, not suitable for all window types
ROVSUN 8000 BTU Window Air Con
✓ Provides cooling, heating, dehumidification, and fan modes
✗ Requires window size verification before purchase
Keystone 23,200 BTU Window Air
✓ Powerful cooling for large spaces up to 1,500 sq. ft.
✗ Supplemental heating isn’t suitable as primary heat
Midea 12000 BTU Inverter Windo
✓ Provides cooling, heating, and dehumidification
✗ Heat pump less effective below 41°F outside
LG 23,000 BTU 230V Window-Moun
✓ Exceptional cooling capacity up to 1400 sq ft
✗ Requires professional installation due to weight and complexity
Whirlpool 8,000 BTU Window Air
✓ Effective cooling and supplemental heating for small rooms
✗ Limited heating capacity for cold winter months
Midea 8,000 BTU Smart Inverter
✓ Energy-efficient inverter technology saves up to 35%
✗ Heat pump only effective above 41°F outside temperature
Keystone 12,000 BTU Window Air
✓ Powerful cooling and heating for up to 550 sq ft
✗ Window installation required, which may not fit all spaces
ROVSUN 12000 BTU Window Air Co
✓ Provides both cooling and heating for rooms up to 550 sq ft
✗ Requires specific window width (26-36 inches)
LG 12,200 BTU Window Air Condi
✓ Cools large rooms up to 570 sq. ft.
✗ Requires window installation
ROVSUN 8000 BTU Window Air Con
✓ Provides cooling and heating for rooms up to 350 sq. ft.
✗ Limited to window installation, not suitable for all window types
LG 7,600 BTU Window Air Condit
✓ Provides cooling and heating for up to 330 sq. ft.
✗ Limited to small rooms
Garvee 8000 BTU Window Air Con
✓ Four-in-one functionality: cooling, heating, dehumidify, fan
✗ Window size and voltage compatibility must be checked
ROVSUN 11000 BTU Inverter Wind
✓ Inverter technology reduces energy bills by 35%
✗ Limited operation in very cold temperatures

Complete the kit

GIOTOHUN Cat Water Fountain Filter: 12 Cat Fountain Filte...
GIOTOHUN Cat Water Fountain Filter: 12 Cat Fountain Filte…
Add to your setup →
Bluevua Official RO100ROPOT 4-Pack Replacement Filter Set...
Bluevua Official RO100ROPOT 4-Pack Replacement Filter Set…
Add to your setup →
Bluevua Official Reverse Osmosis System Countertop RO100R...
Bluevua Official Reverse Osmosis System Countertop RO100R…
Add to your setup →

Key Takeaways

  • Top models combine both heating and cooling effectively, with many offering smart features like Wi-Fi control.
  • Larger rooms require units with higher BTU ratings; smaller spaces benefit from compact, efficient options.
  • Price varies significantly based on features like inverter technology and smart connectivity, influencing long-term savings.
  • Ease of installation and maintenance are often overlooked but critical for user satisfaction.
  • Not all units with heat are equally efficient; selecting one with inverter technology can reduce energy costs.
2
Bonnlo 12000BTU Window Air Con
Best for All-Season Comfort and Smart Home Integration
1
Frigidaire 6,000 BTU Window Ai
Best for Small Bedrooms and Quiet Operation
3
ROVSUN 8000 BTU Window Air Con
Best for Versatile Climate Control in Small to Medium Spaces

Our Top Window Air Conditioner Heater Picks

Frigidaire 6,000 BTU Window Air Conditioner with Remote Control[grimfaste asin=”B0CFYG2511″ mode=”image” alt=”Frigidaire 6,000 BTU Window Air Conditioner with Remote Control” image=”https://m.media-amazon.com/images/I/71x8OShDU0L._AC_SY300_SX300_QL70_FMwebp_.jpg” link=”0″]Best for Small Bedrooms and Quiet OperationBTU: 6,000Cooling Area: 250 sq. ft.Noise Level: 52 dBAVIEW ON AMAZONSee Our Full Breakdown
Bonnlo 12000BTU Window Air Conditioner with Heat & Timer, Wi-Fi Enabled, Compatible with Alexa & Google Assistant, Easy Installation Kit for Rooms up to 550 Sq.Ft[grimfaste asin=”B0GQMC6HX9″ mode=”image” alt=”Bonnlo 12000BTU Window Air Conditioner with Heat & Timer, Wi-Fi Enabled, Compatible with Alexa & Google Assistant, Easy Installation Kit for Rooms up to 550 Sq.Ft” image=”https://m.media-amazon.com/images/I/71xGVBAoTXL._AC_SX342_SY445_QL70_FMwebp_.jpg” link=”0″]Best for All-Season Comfort and Smart Home IntegrationCooling Capacity: 12000 BTUHeating Capacity: 9000-11,000 BTUNoise Level: 59dBVIEW ON AMAZONSee Our Full Breakdown
ROVSUN 8000 BTU Window Air Conditioner with Heat, 4-in-1 Cooling, Heating, Dehumidifier & Fan, Remote Control, Installation Kit[grimfaste asin=”B0CYZ9JRQM” mode=”image” alt=”ROVSUN 8000 BTU Window Air Conditioner with Heat, 4-in-1 Cooling, Heating, Dehumidifier & Fan, Remote Control, Installation Kit” image=”https://m.media-amazon.com/images/I/71hQhFp+dOL._AC_SX342_SY445_QL70_FMwebp_.jpg” link=”0″]Best for Versatile Climate Control in Small to Medium SpacesCooling Capacity: 8000 BTUHeating Capacity: 4000 BTURoom Size: Up to 350 sq. ft.VIEW ON AMAZONSee Our Full Breakdown
Keystone 23,200 BTU Window Air Conditioner with 16,000 BTU Supplemental Heat and Dehumidifier, 230V, Window AC for Large Rooms up to 1,500 Sq.Ft. with Smart Remote Control[grimfaste asin=”B0CHZ5M5JB” mode=”image” alt=”Keystone 23,200 BTU Window Air Conditioner with 16,000 BTU Supplemental Heat and Dehumidifier, 230V, Window AC for Large Rooms up to 1,500 Sq.Ft. with Smart Remote Control” image=”https://m.media-amazon.com/images/I/61ew6IVa08L._AC_SX342_SY445_QL70_FMwebp_.jpg” link=”0″]Best for Large Rooms and Powerful Climate ControlCooling Capacity: 23,200 BTUHeating Capacity: 16,000 BTURoom Size: up to 1,500 sq. ft.VIEW ON AMAZONSee Our Full Breakdown
Midea 12000 BTU Inverter Window Air Conditioner with Heat and Dehumidifier[grimfaste asin=”B0GL6H2J7P” mode=”image” alt=”Midea 12000 BTU Inverter Window Air Conditioner with Heat and Dehumidifier” image=”https://m.media-amazon.com/images/I/718xStCA+5L._AC_SY300_SX300_QL70_FMwebp_.jpg” link=”0″]Best for Energy Efficiency and Quiet Year-Round ComfortBTU: 12,000Cooling Area: 550 sq. ft.Power Supply: 115VVIEW ON AMAZONSee Our Full Breakdown
LG 23,000 BTU 230V Window-Mounted Air Conditioner with Heat and Remote Control[grimfaste asin=”B0C6NJKXXL” mode=”image” alt=”LG 23,000 BTU 230V Window-Mounted Air Conditioner with Heat and Remote Control” image=”https://m.media-amazon.com/images/I/61cCxUJWy4L._AC_SX342_SY445_QL70_FMwebp_.jpg” link=”0″]Best Overall for Large Spaces with Dual FunctionalityBTU Cooling: 23,000 BTUVoltage: 230VHeating BTU: 9,200/11,200 BTUVIEW ON AMAZONSee Our Full Breakdown
Whirlpool 8,000 BTU Window Air Conditioner with Supplemental Heat[grimfaste asin=”B0DMTQK4VB” mode=”image” alt=”Whirlpool 8,000 BTU Window Air Conditioner with Supplemental Heat” image=”https://m.media-amazon.com/images/I/51ytTVGCdpL._AC_SX342_SY445_QL70_FMwebp_.jpg” link=”0″]Best Compact Choice for Small to Medium RoomsBTU: 8,000 BTUSupplemental Heat: 4,000 BTURoom Size: up to 350 sq ftVIEW ON AMAZONSee Our Full Breakdown
Midea 8,000 BTU Smart Inverter Window Air Conditioner with Heat and Dehumidifier[grimfaste asin=”B0CVVQWGH2″ mode=”image” alt=”Midea 8,000 BTU Smart Inverter Window Air Conditioner with Heat and Dehumidifier” image=”https://m.media-amazon.com/images/I/719nplzl9zL._AC_SY300_SX300_QL70_FMwebp_.jpg” link=”0″]Best Energy-Efficient Smart Model for Year-Round ComfortBTU: 8,000Cooling Area: 350 sq ftHeat Pump: Yes (above 41°F)VIEW ON AMAZONSee Our Full Breakdown
Keystone 12,000 BTU Window Air Conditioner with 11,000 BTU Supplemental Heating and Dehumidification, 230V[grimfaste asin=”B0CHZ5P2VF” mode=”image” alt=”Keystone 12,000 BTU Window Air Conditioner with 11,000 BTU Supplemental Heating and Dehumidification, 230V” image=”https://m.media-amazon.com/images/I/61EFvD+3FJL._AC_SX342_SY445_QL70_FMwebp_.jpg” link=”0″]Best for Large Rooms with High Power NeedsCooling Capacity: 12,000 BTUHeating Capacity: 11,000 BTUVoltage: 230VVIEW ON AMAZONSee Our Full Breakdown
ROVSUN 12000 BTU Window Air Conditioner with Heat, Smart Control, and Easy Installation[grimfaste asin=”B0CYT39Z2V” mode=”image” alt=”ROVSUN 12000 BTU Window Air Conditioner with Heat, Smart Control, and Easy Installation” image=”https://m.media-amazon.com/images/I/71UNu6lyx2L._AC_SX342_SY445_QL70_FMwebp_.jpg” link=”0″]Best Versatile Smart Unit for Medium RoomsBTU: 12,000Heating: YesCoverage Area: 550 sq ftVIEW ON AMAZONSee Our Full Breakdown
LG 12,200 BTU Window Air Conditioner with Heat, Remote, and 2 Speeds[grimfaste asin=”B0D92NL47P” mode=”image” alt=”LG 12,200 BTU Window Air Conditioner with Heat, Remote, and 2 Speeds” image=”https://m.media-amazon.com/images/I/71j7IMEgUBL._AC_SX342_SY445_QL70_ML2_.jpg” link=”0″]Best Overall for Large Rooms with Year-Round ComfortCooling Power: 12,200 BTUApplication: ResidentialColor: Bright WhiteVIEW ON AMAZONSee Our Full Breakdown
ROVSUN 8000 BTU Window Air Conditioner with Heat, Smart Control, and Easy Installation[grimfaste asin=”B0CYT1545H” mode=”image” alt=”ROVSUN 8000 BTU Window Air Conditioner with Heat, Smart Control, and Easy Installation” image=”https://m.media-amazon.com/images/I/71UNu6lyx2L._AC_SX342_SY445_QL70_FMwebp_.jpg” link=”0″]Best for Smart Home Integration and Easy SetupCooling Capacity: 8000 BTUHeating Capacity: 4000 BTURoom Size: Up to 350 sq ftVIEW ON AMAZONSee Our Full Breakdown
LG 7,600 BTU Window Air Conditioner with Heat, 115V, 330 Sq.Ft. Cooling, Remote Control[grimfaste asin=”B0C6NR5VF5″ mode=”image” alt=”LG 7,600 BTU Window Air Conditioner with Heat, 115V, 330 Sq.Ft. Cooling, Remote Control” image=”https://m.media-amazon.com/images/I/71MWl4usO5L._AC_SX342_SY445_QL70_FMwebp_.jpg” link=”0″]Best for Compact Spaces with Quiet OperationBTU: 7,600Voltage: 115VCooling Capacity: 330 Sq.Ft.VIEW ON AMAZONSee Our Full Breakdown
Garvee 8000 BTU Window Air Conditioner with Heat, Dehumidifier & Fan, App & Remote Control[grimfaste asin=”B0GWC3SBZV” mode=”image” alt=”Garvee 8000 BTU Window Air Conditioner with Heat, Dehumidifier & Fan, App & Remote Control” image=”https://m.media-amazon.com/images/I/81vd5vkqm3L._AC_SX342_SY445_QL70_FMwebp_.jpg” link=”0″]Best for All-in-One Functionality and App ControlBTU: 8000Room Size: Up to 350 sq ftVoltage: 115V/60HzVIEW ON AMAZONSee Our Full Breakdown
ROVSUN 11000 BTU Inverter Window Air Conditioner with Heater & WiFi[grimfaste asin=”B0GXW865DW” mode=”image” alt=”ROVSUN 11000 BTU Inverter Window Air Conditioner with Heater & WiFi” image=”https://m.media-amazon.com/images/I/81spHrnDrPL._AC_SX342_SY445_QL70_FMwebp_.jpg” link=”0″]Best for Energy Efficiency and Ultra Quiet OperationCooling Capacity: 11000 BTUHeating Capacity: 1100 BTUCoverage Area: 350 sq. ft.VIEW ON AMAZONSee Our Full Breakdown
Specs at a glance
window air conditioner heaterNoise LevelVoltageRoom Size
Frigidaire 6,000 BTU Window Ai52 dBA
Bonnlo 12000BTU Window Air Con59dB230V/60HzUp to 550 sq. ft.
ROVSUN 8000 BTU Window Air Con52 dB115V/60HzUp to 350 sq. ft.
Keystone 23,200 BTU Window Air230Vup to 1,500 sq. ft.
Midea 12000 BTU Inverter Windo45 dBA
LG 23,000 BTU 230V Window-Moun62dB230V
Whirlpool 8,000 BTU Window Airup to 350 sq ft
Midea 8,000 BTU Smart Inverter45 dBA
Keystone 12,000 BTU Window Air230Vup to 550 sq ft
ROVSUN 12000 BTU Window Air Co
LG 12,200 BTU Window Air Condi50dBup to 570 sq. ft.
ROVSUN 8000 BTU Window Air ConUp to 350 sq ft
LG 7,600 BTU Window Air Condit52dB115V
Garvee 8000 BTU Window Air Con52dB115V/60HzUp to 350 sq ft
ROVSUN 11000 BTU Inverter Wind40dB115V

More Details on Our Top Picks

  1. Frigidaire 6,000 BTU Window Air Conditioner with Remote Control

    This Frigidaire model stands out for its quiet operation at 52 dBA, making it ideal for bedrooms or spaces requiring minimal noise disturbance. Compared to larger units like the Keystone 23,200 BTU, it offers lower capacity but excels in energy efficiency and ease of use, thanks to its remote control and adjustable fan speeds. While it’s perfect for small rooms up to 250 sq. ft., its limited cooling power makes it unsuitable for larger spaces. The absence of smart home compatibility could be a downside for tech-savvy users seeking remote control via apps. Additionally, regular filter cleaning is required to maintain efficiency. This pick makes the most sense for those prioritizing a quiet, energy-efficient cooling solution for small areas.

    Pros:
    • Quiet operation at 52 dBA, suitable for bedrooms
    • Energy-efficient Eco and Sleep modes reduce running costs
    • Remote control for convenient adjustments
    • Adjustable airflow and fan speeds
    Cons:
    • Limited to small spaces up to 250 sq. ft.
    • No smart home compatibility

    Best for: Individuals needing a quiet, reliable AC for small bedrooms or offices up to 250 sq. ft.

    Not ideal for: Large living rooms or open-plan spaces over 250 sq. ft. due to its limited capacity.

    • BTU:6,000
    • Cooling Area:250 sq. ft.
    • Noise Level:52 dBA
    • Fan Speeds:3
    • Color:White
    Our verdict
    “This model is best for users seeking a quiet, energy-efficient air conditioner for small, bedroom-sized rooms.”
  2. Bonnlo 12000BTU Window Air Conditioner with Heat & Timer, Wi-Fi Enabled, Compatible with Alexa & Google Assistant, Easy Installation Kit for Rooms up to 550 Sq.Ft

    The Bonnlo 12000BTU unit offers a powerful combination of cooling and heating for spaces up to 550 sq. ft., making it ideal for year-round comfort. Its smart Wi-Fi control and voice compatibility with Alexa and Google Assistant add significant convenience, especially compared to non-smart options like the ROVSUN 8000 BTU. The unit’s high capacity and adjustable heating (9000-11,000 BTU) make it suitable for larger rooms, but the setup can be complex and window mounting might not suit all window types. Energy consumption is higher due to its dual functions, which could increase utility bills. This model makes the most sense for tech-savvy homeowners who want flexible, remote control in medium to large rooms, despite the potential complexity of installation.

    Pros:
    • Powerful dual heating and cooling for year-round comfort
    • Smart Wi-Fi and voice control for remote operation
    • Easy installation with included kit
    • Quiet operation suitable for sleep and work
    Cons:
    • Requires window mounting, not suitable for all window types
    • Higher energy consumption due to dual functions
    • Setup may be complex for some users

    Best for: Homeowners seeking a versatile, smart-controlled AC and heater for large rooms up to 550 sq. ft.

    Not ideal for: Users with limited window space or those preferring simple, manual units without smart features.

    • Cooling Capacity:12000 BTU
    • Heating Capacity:9000-11,000 BTU
    • Noise Level:59dB
    • Voltage:230V/60Hz
    • Room Size:Up to 550 sq. ft.
    • Smart Control:Wi-Fi, Alexa & Google
    Our verdict
    “This pick is perfect for those wanting a smart, powerful climate control solution for large rooms with year-round functionality.”
  3. ROVSUN 8000 BTU Window Air Conditioner with Heat, 4-in-1 Cooling, Heating, Dehumidifier & Fan, Remote Control, Installation Kit

    The ROVSUN 8000 BTU offers a flexible 4-in-1 function set—cooling, heating, dehumidifying, and fan—making it a solid choice for spaces up to 350 sq. ft. When compared with the Midea 12000 BTU inverter, it provides less capacity but remains suitable for smaller rooms needing both heating and cooling. Its remote control and LED display simplify operation, though assembly can take time despite included instructions, and it requires a window size check beforehand. Its energy efficiency is decent, but not as high as inverter models. This unit is well-suited for users who want an affordable, all-in-one climate solution for small to medium rooms, willing to handle some setup effort.

    Pros:
    • Provides cooling, heating, dehumidification, and fan modes
    • Easy remote operation with LED display
    • Energy-efficient with quiet operation
    • Includes installation kit
    Cons:
    • Requires window size verification before purchase
    • Assembly may take longer than expected

    Best for: Renters or small homeowners seeking a budget-friendly, multi-function AC and heater for rooms up to 350 sq. ft.

    Not ideal for: Large spaces or users who prefer quick, tool-free installation, as setup can be time-consuming.

    • Cooling Capacity:8000 BTU
    • Heating Capacity:4000 BTU
    • Room Size:Up to 350 sq. ft.
    • Noise Level:52 dB
    • Remote Control:Yes
    • Voltage:115V/60Hz
    Our verdict
    “Ideal for budget-conscious users needing versatile climate control in small to medium rooms, despite some setup effort.”
  4. Keystone 23,200 BTU Window Air Conditioner with 16,000 BTU Supplemental Heat and Dehumidifier, 230V, Window AC for Large Rooms up to 1,500 Sq.Ft. with Smart Remote Control

    The Keystone 23,200 BTU unit is designed for substantial spaces up to 1,500 sq. ft., offering strong cooling plus 16,000 BTU of supplemental heat. Compared with smaller units like the Frigidaire 6,000 BTU, this model targets large living areas, providing powerful capacity and dehumidification. Its smart remote control enhances precision and convenience, though it necessitates window installation and a minimum window height of 19.5 inches. The supplemental heat feature isn’t meant to replace a primary heating system, and mode operation can be limited by specific temperature ranges. This makes it ideal for large, multi-purpose rooms where robust climate control is needed but not as the sole heat source.

    Pros:
    • Powerful cooling for large spaces up to 1,500 sq. ft.
    • Includes dehumidifier and fan circulation
    • Smart remote with accurate temperature sensing
    • Space-saving window installation
    Cons:
    • Supplemental heating isn’t suitable as primary heat
    • Requires window installation and specific dimensions
    • Limited mode operation within certain temperature ranges

    Best for: Homeowners with large living spaces or basements who need powerful, combined cooling and heating.

    Not ideal for: Small apartments or rooms under 600 sq. ft. where such high capacity would be excessive and less efficient.

    • Cooling Capacity:23,200 BTU
    • Heating Capacity:16,000 BTU
    • Room Size:up to 1,500 sq. ft.
    • Voltage:230V
    • Remote Control:Yes
    Our verdict
    “Best suited for large rooms needing reliable, high-capacity climate control with smart features, accepting installation requirements.”
  5. Midea 12000 BTU Inverter Window Air Conditioner with Heat and Dehumidifier

    The Midea 12000 BTU inverter model makes a compelling choice for those prioritizing energy savings and quiet operation, operating at just 45 dBA. Its inverter technology reduces power consumption by up to 35%, outperforming non-inverter units like the ROVSUN 8000 BTU, especially in larger rooms up to 550 sq. ft. The smart control via app and voice adds modern convenience, but the heat pump’s performance drops below 41°F outside, limiting its effectiveness in very cold weather. Installation requires a window with specific dimensions, and the heat function’s lower efficiency in cold conditions may disappoint in winter. This unit is best for tech-savvy consumers who want energy-efficient, quiet operation with year-round climate control.

    Pros:
    • Provides cooling, heating, and dehumidification
    • Smart app and voice control compatibility
    • Energy-efficient inverter technology saves up to 35%
    • Operates quietly at 45 dBA
    Cons:
    • Heat pump less effective below 41°F outside
    • Installation requires specific window sizes
    • Less effective heating in extremely cold weather

    Best for: Homeowners seeking a high-efficiency, smart-controlled climate solution for large rooms, with a focus on long-term energy savings.

    Not ideal for: Users needing primary heating in very cold climates or with windows outside the specified size range.

    • BTU:12,000
    • Cooling Area:550 sq. ft.
    • Power Supply:115V
    • Energy Star Certified:Yes
    • Noise Level:45 dBA
    • Window Fit:24-38.5 inches wide
    Our verdict
    “Ideal for energy-conscious users wanting quiet, smart climate control in large rooms, with some limitations in very cold weather.”
  6. LG 23,000 BTU 230V Window-Mounted Air Conditioner with Heat and Remote Control

    This LG unit stands out for its impressive cooling capacity of 23,000 BTU, making it suitable for spaces up to 1400 sq ft, unlike smaller models like the Whirlpool 8,000 BTU unit. Its ability to provide both cooling and heating ensures year-round comfort, but its high energy consumption and heavier weight mean installation and running costs are higher. The quiet operation at 62dB and included remote control add to user convenience. Compared to the Midea inverter model, it lacks smart features and energy efficiency, making it better suited for those prioritizing raw power over smart tech or energy savings. This makes it ideal for large, multi-use rooms where capacity and reliable heating are essential.

    Pros:
    • Exceptional cooling capacity up to 1400 sq ft
    • Provides both cooling and supplemental heating
    • Quiet operation at 62dB
    • Auto restart feature for convenience
    Cons:
    • Requires professional installation due to weight and complexity
    • Higher energy consumption compared to smaller or inverter units

    Best for: Homeowners needing a powerful, all-in-one climate solution for large living or commercial spaces

    Not ideal for: Small apartment dwellers or those seeking a more energy-efficient, smart-connected unit for a single room

    • BTU Cooling:23,000 BTU
    • Voltage:230V
    • Heating BTU:9,200/11,200 BTU
    • Coverage Area:1400 sq ft
    • Noise Level:62dB
    • Weight:Heavy
    Our verdict
    “This model is best for large spaces where high capacity and all-in-one climate control outweigh installation and operational costs.”
  7. Whirlpool 8,000 BTU Window Air Conditioner with Supplemental Heat

    Compared with larger units like the LG 23,000 BTU, this Whirlpool model is tailored for smaller spaces up to 350 sq ft, making it a practical choice for bedrooms or offices. Its supplemental heat of 4,000 BTU offers extra warmth but isn’t enough for cold winter months as a primary heat source. The easy installation, digital controls, and washable filter make it user-friendly, but the limited heating capacity and window requirements of at least 19.5 inches height could pose compatibility issues. It’s a solid pick for those who want basic climate control with minimal fuss, but not suitable for larger or colder environments where more heating power is needed.

    Pros:
    • Effective cooling and supplemental heating for small rooms
    • Easy to install with included mounting kit
    • Remote control for convenience
    • Multiple modes and programmable timer
    Cons:
    • Limited heating capacity for cold winter months
    • Requires minimum window height of 19.5 inches

    Best for: Small room occupants seeking reliable cooling and light heating with straightforward operation

    Not ideal for: Residents in colder climates requiring primary heating or large rooms over 350 sq ft

    • BTU:8,000 BTU
    • Supplemental Heat:4,000 BTU
    • Room Size:up to 350 sq ft
    • Control Type:Digital remote
    • Modes:Cooling, supplemental heat
    • Window Height Minimum:19.5 inches
    Our verdict
    “This unit is ideal for small spaces needing straightforward cooling and light heating but not for primary heating in colder areas.”
  8. Midea 8,000 BTU Smart Inverter Window Air Conditioner with Heat and Dehumidifier

    This Midea unit excels with its inverter technology, offering energy savings up to 35%, unlike non-inverter models such as the Whirlpool. It provides both cooling and heating for rooms up to 350 sq ft, with the added bonus of dehumidification, making it suitable for year-round use. Its quiet operation at 45dBA and smart controls via app, voice, and remote set it apart from basic models. However, the heat pump only works above 41°F, limiting its heating effectiveness in very cold climates. Installation may require specific window sizes, and its capacity is limited to smaller rooms. Overall, this pick is best for those prioritizing energy efficiency and smart technology over maximum heating power.

    Pros:
    • Energy-efficient inverter technology saves up to 35%
    • Smart control via app, voice, and remote
    • Quiet operation at 45dBA
    • Provides both cooling and heating, plus dehumidification
    Cons:
    • Heat pump only effective above 41°F outside temperature
    • Limited to rooms up to 350 sq ft
    • Requires specific window dimensions for installation

    Best for: Eco-conscious users seeking a smart, energy-efficient climate control system for small to medium rooms

    Not ideal for: Cold climate residents needing primary heating during freezing temperatures or larger spaces

    • BTU:8,000
    • Cooling Area:350 sq ft
    • Heat Pump:Yes (above 41°F)
    • Noise Level:45 dBA
    • Energy Star Rated:Yes
    • Dimensions:19.41″W x 22.17″D x 13.9″H
    Our verdict
    “This unit suits energy-conscious homeowners who want smart, year-round comfort in smaller spaces, but not those in extremely cold climates.”
  9. Keystone 12,000 BTU Window Air Conditioner with 11,000 BTU Supplemental Heating and Dehumidification, 230V

    Compared with smaller units like the Whirlpool 8,000 BTU, this Keystone model offers substantial cooling and heating capacity for spaces up to 550 sq ft. Its 12,000 BTU cooling and 11,000 BTU supplemental heat make it a robust choice for larger rooms or semi-commercial spaces. The smart remote with room temperature sensing enhances control accuracy, but the reliance on window installation may not suit all locations. While its power is impressive, the heating isn’t meant as primary for very cold climates, similar to the Whirlpool and ROVSUN models. This makes it well-suited for users needing high capacity with some smart features, but not for those seeking a portable or wall-mounted option.

    Pros:
    • Powerful cooling and heating for up to 550 sq ft
    • Smart remote with room temperature sensing
    • Energy-saving modes
    • Space-saving window installation kit included
    Cons:
    • Window installation required, which may not fit all spaces
    • Heating not suitable as sole winter heat source in very cold climates

    Best for: Homeowners or small businesses wanting a powerful, all-in-one climate solution for larger rooms

    Not ideal for: Apartment dwellers with limited window space or those seeking a portable heating option

    • Cooling Capacity:12,000 BTU
    • Heating Capacity:11,000 BTU
    • Voltage:230V
    • Room Size:up to 550 sq ft
    • Remote:Smart remote with LCD
    • Dehumidification:Yes
    Our verdict
    “This model is best for large rooms where high capacity and smart remote control are priorities, but not for portable or cold-climate heating needs.”
  10. ROVSUN 12000 BTU Window Air Conditioner with Heat, Smart Control, and Easy Installation

    Offering 12,000 BTU cooling and heating, this ROVSUN model balances power and smart features, comparable to the Keystone but with added emphasis on user-friendly installation and app control. Its Wi-Fi and voice assistant compatibility make it ideal for tech-savvy users who want remote operation, unlike basic units like the Whirlpool 8,000 BTU. However, the requirement for a window width of 26-36 inches and the specific installation process can challenge first-time users. Its heating capacity is sufficient for moderate winter conditions, but not for very cold climates. Overall, this makes a practical choice for those needing reliable climate control in medium-sized rooms with modern control options.

    Pros:
    • Provides both cooling and heating for rooms up to 550 sq ft
    • Supports Wi-Fi and voice control for convenience
    • Easy installation with included kit
    • Adjustable modes and speeds for customization
    Cons:
    • Requires specific window width (26-36 inches)
    • Installation may be complex for some users
    • Limited heating power in very cold weather

    Best for: Homeowners needing a smart, easy-to-control climate solution for medium-sized rooms

    Not ideal for: Users with very small or very large windows, or those in extremely cold climates needing primary heat

    • BTU:12,000
    • Heating:Yes
    • Coverage Area:550 sq ft
    • Wi-Fi Enabled:Yes
    • Voice Control:Alexa, Google
    • Installation Window Width:26″ – 36″
    Our verdict
    “This smart, versatile model suits medium rooms with a preference for app and voice control, but not for very small spaces or harsh winter conditions.”
  11. LG 12,200 BTU Window Air Conditioner with Heat, Remote, and 2 Speeds

    This LG model stands out for its ability to cool spaces up to 570 sq. ft., making it ideal for large living rooms or open-plan areas. Unlike the smaller LG 7,600 BTU unit, it offers more substantial cooling capacity and includes supplemental heating, providing comprehensive climate control. Its quiet operation at 50dB ensures it won’t disrupt activities, and the remote adds convenience. However, it requires window installation and lacks inverter technology, which limits energy efficiency, leading to potentially higher bills during extended use. Compared to the ROVSUN 11000 BTU inverter, it sacrifices some energy savings for simplicity and power, making it better suited for those prioritizing large coverage over efficiency. This pick is perfect for homeowners wanting a reliable, quiet, large-room solution that works year-round.

    Pros:
    • Cools large rooms up to 570 sq. ft.
    • Includes heating for cooler days
    • Quiet operation at 50dB
    • Remote control for easy adjustments
    Cons:
    • Requires window installation
    • No inverter technology, less energy efficient
    • Limited to 2 speeds for cooling and heating

    Best for: Large households or open-concept living spaces needing efficient cooling and heating with quiet operation.

    Not ideal for: Apartment dwellers with small windows or those seeking the highest energy efficiency for long-term savings.

    • Cooling Power:12,200 BTU
    • Application:Residential
    • Color:Bright White
    • Noise Level:50dB
    • Refrigerant:R-410A
    • Room Size:up to 570 sq. ft.
    Our verdict
    “This unit is best for large spaces where quiet, reliable year-round comfort is more important than maximum energy efficiency.”
  12. ROVSUN 8000 BTU Window Air Conditioner with Heat, Smart Control, and Easy Installation

    This ROVSUN model is ideal for smaller rooms up to 350 sq. ft., especially for users who want smart features like Wi-Fi and voice control. Compared with the Garvee 8000 BTU unit, it offers similar cooling and heating capacities but adds smart control, making it more convenient for tech-savvy users. Its simple installation process with included side panels is a significant advantage over models requiring more complex setups. However, its modest capacity might fall short in larger spaces, and smart features depend on Wi-Fi connectivity, which can be a drawback in unstable network environments. Unlike the LG 12,200 BTU unit, it lacks large-area coverage but excels in convenience and smart home compatibility. This model suits those seeking easy installation and remote control via their smartphone or voice assistants.

    Pros:
    • Provides cooling and heating for rooms up to 350 sq. ft.
    • Wi-Fi and voice control compatibility
    • Easy installation with included panels
    • Multiple modes and adjustable fan speeds
    Cons:
    • Limited to window installation, not suitable for all window types
    • Requires Wi-Fi for smart features
    • Cooling and heating may be insufficient for larger rooms

    Best for: Small to medium-sized rooms where smart control and straightforward setup are priorities.

    Not ideal for: Large open spaces or users without reliable Wi-Fi, as smart features require a network connection.

    • Cooling Capacity:8000 BTU
    • Heating Capacity:4000 BTU
    • Room Size:Up to 350 sq ft
    • Window Width:26″ – 36″
    • Power Supply:115V/60Hz
    • Additional Features:Wi-Fi, Voice Control
    Our verdict
    “This unit is perfect for tech-savvy users in smaller spaces who value smart control and easy installation over larger capacity.”
  13. LG 7,600 BTU Window Air Conditioner with Heat, 115V, 330 Sq.Ft. Cooling, Remote Control

    This LG unit excels in smaller rooms up to 330 sq. ft., offering quiet operation at 52dB, making it suitable for bedrooms or offices where noise is a concern. Compared to the larger LG 12,200 BTU model, it provides less coverage but more energy efficiency in smaller spaces. Its remote control and 24-hour timer increase convenience, and the auto restart feature ensures continuous comfort after outages. The main tradeoff is its limited capacity, which may fall short in larger or more open areas. It also requires proper window compatibility for installation. Unlike the Garvee 8000 BTU, it does not include dehumidification or smart features, but its compact size and quiet operation make it a strong choice for individual rooms.

    Pros:
    • Provides cooling and heating for up to 330 sq. ft.
    • Quiet operation at 52dB
    • Includes remote control and timer
    • Auto restart ensures continuous operation
    Cons:
    • Limited to small rooms
    • Requires window compatibility for installation
    • Higher energy consumption during heating mode

    Best for: Small rooms or offices where quiet, efficient heating and cooling are desired.

    Not ideal for: Large or open-plan spaces that need higher capacity or smart home features.

    • BTU:7,600
    • Voltage:115V
    • Cooling Capacity:330 Sq.Ft.
    • Noise Level:52dB
    • Remote Control:Yes
    • Timer:24-hour
    Our verdict
    “This model is ideal for users seeking a compact, quiet unit for small spaces that need reliable climate control.”
  14. Garvee 8000 BTU Window Air Conditioner with Heat, Dehumidifier & Fan, App & Remote Control

    The Garvee 8000 BTU unit offers versatile climate management with cooling, heating, dehumidifying, and fan modes, making it suitable for rooms up to 350 sq. ft. It surpasses basic models like the LG 7,600 BTU by including dehumidification and app control, appealing to users who want an all-season solution. Its quiet operation at 52dB supports use in bedrooms and living areas. Installation is straightforward with the provided mounting kit. The main tradeoff involves its limited room size capacity and the need to verify window size compatibility. Lacking detailed energy efficiency ratings, it may not be the best option for energy-conscious households. Compared with the ROVSUN smart model, it emphasizes ease of use over smart home integration, making it ideal for users prioritizing convenience and all-in-one features.

    Pros:
    • Four-in-one functionality: cooling, heating, dehumidify, fan
    • Smart app and voice control compatibility
    • Quiet operation at 52 decibels
    • Easy installation with included mounting kit
    Cons:
    • Window size and voltage compatibility must be checked
    • Limited to rooms up to 350 sq ft
    • No specified energy efficiency rating

    Best for: Homeowners looking for an all-in-one, easy-to-control climate solution for small to medium rooms.

    Not ideal for: Larger spaces or users concerned about detailed energy efficiency metrics.

    • BTU:8000
    • Room Size:Up to 350 sq ft
    • Voltage:115V/60Hz
    • Modes:Cool, Heat, Dehumidify, Fan
    • Fan Speeds:3
    • Noise Level:52dB
    Our verdict
    “Ideal for users wanting a versatile, app-controlled unit that handles all-season climate needs in smaller spaces.”
  15. ROVSUN 11000 BTU Inverter Window Air Conditioner with Heater & WiFi

    This ROVSUN inverter model provides rapid cooling and heating for rooms up to 350 sq. ft., with a focus on energy savings thanks to its inverter technology, which reduces bills and environmental impact. Compared to the non-inverter LG 12,200 BTU, it offers less capacity but excels in efficiency, operating at a remarkably quiet 40dB. Its Wi-Fi and voice control compatibility with Alexa and Google Assistant make managing climate effortless. The adjustable side panels facilitate easy installation, though limitations exist in cool mode operation below 32°F and heat mode below 5°F, which could restrict use in very cold climates. This unit is best suited for users prioritizing low energy costs and quiet operation over maximum capacity, especially in smaller rooms.

    Pros:
    • Inverter technology reduces energy bills by 35%
    • Ultra quiet at 40dB
    • Wi-Fi and voice control compatible
    • Easy installation with adjustable side panels
    Cons:
    • Limited operation in very cold temperatures
    • Requires app for remote control features
    • Limited to window installation, compatibility varies

    Best for: Energy-conscious users in small to medium rooms seeking quiet operation and smart control.

    Not ideal for: Large spaces or colder climates where higher heating capacity or operation in extreme cold is required.

    • Cooling Capacity:11000 BTU
    • Heating Capacity:1100 BTU
    • Coverage Area:350 sq. ft.
    • Voltage:115V
    • Noise Level:40dB
    • Energy Efficiency:13.2 CEER
    Our verdict
    “This model is perfect for eco-aware users wanting efficient, quiet climate control in smaller spaces with smart connectivity.”
window air conditioner heater
What makes a great window air conditioner heater
1
Room Size and BTU Capacity
Matching the unit’s BTU rating to your room size ensures effective temperature control without wasting energy.
2
Energy Efficiency and Inverter Technology
Energy efficiency directly affects ongoing costs.
3
Smart Features and Controls
Smart controls like Wi-Fi connectivity and app integration can significantly enhance usability, allowing remote operation and sche
4
Installation and Maintenance
Ease of installation varies across models; some units come with quick-install kits, while others may require professional help.
How to choose your window air conditioner heater
1
How we picked
Our evaluation focused on performance, usability, build quality, and value.
2
Room Size and BTU Capacity
Matching the unit’s BTU rating to your room size ensures effective temperature control without wasting energy.
3
Energy Efficiency and Inverter Technology
Energy efficiency directly affects ongoing costs.
4
Smart Features and Controls
Smart controls like Wi-Fi connectivity and app integration can significantly enhance usability, allowing remote operatio
5
Installation and Maintenance
Ease of installation varies across models; some units come with quick-install kits, while others may require professiona
Vetted window air conditioner heater ·
The best window air conditioner heater, compared
★ Winner LG 23,000 BTU 230V Window-Moun
Best Overall for Large Spaces with Dual Functionality
15compared
230V/60Hztop voltage
6room sizes

How We Picked

Our evaluation focused on performance, usability, build quality, and value. We compared BTU ratings, heating and cooling efficiency, and energy consumption to determine the best overall options. Ease of installation and control features like Wi-Fi were also key, as they impact everyday convenience. Units were ranked based on their ability to meet typical room sizes, balance cost with features, and provide reliable operation over time.
Everyday → specialist
Everyday & valuePremium & specialist
Which window air conditioner heater fits you?
The everyday user
All-round, reliable
The enthusiast
Premium & high-performance
The gift-giver
Looks & craftsmanship

Factors to Consider When Choosing Window Air Conditioner Heater

Choosing the right window air conditioner heater involves considering several key factors. Beyond basic cooling and heating capacity, it’s important to evaluate energy efficiency, control options, installation ease, and size compatibility. Making informed decisions helps avoid common pitfalls like overspending on unnecessary features or selecting an underpowered unit that struggles with your space. Here are the main considerations to keep in mind when selecting your model.

Room Size and BTU Capacity

Matching the unit’s BTU rating to your room size ensures effective temperature control without wasting energy. An undersized unit will struggle to heat or cool adequately, while an oversized one may cycle on and off frequently, increasing wear and tear. Always measure your space accurately and choose a model with an appropriate BTU rating to achieve optimal comfort and efficiency.

Energy Efficiency and Inverter Technology

Energy efficiency directly affects ongoing costs. Units with inverter technology adjust their compressor speed, providing consistent performance while consuming less power. Although inverter models often cost more upfront, they tend to save money over time through reduced electricity bills. Consider this tradeoff carefully, especially if you plan to run the unit frequently.

Smart Features and Controls

Smart controls like Wi-Fi connectivity and app integration can significantly enhance usability, allowing remote operation and scheduling. However, these features add to the initial price and may require ongoing updates or subscriptions. Decide if remote control, voice activation, or automation genuinely improve your experience enough to justify the extra investment.

Installation and Maintenance

Ease of installation varies across models; some units come with quick-install kits, while others may require professional help. Consider your comfort with DIY setups, especially if space constraints or window configurations are complex. Maintenance considerations, like filter accessibility and durability, also impact long-term satisfaction and should influence your choice.

Price and Long-Term Value

While budget models might meet basic needs, investing in higher-quality units with better efficiency and features often pays off over time. Balance initial costs against potential savings from lower energy bills and durability. Avoid models that seem cheap but could require frequent repairs or replacements, which can offset initial savings.

Frequently Asked Questions

Can I use a window air conditioner heater all year round?

Yes, many window units with heating functions are designed for year-round use, providing cooling in summer and heating in winter. However, their effectiveness depends on the climate and room size. Units with inverter technology tend to operate more efficiently and quietly over extended periods, making them better suited for continuous use. Always check the manufacturer’s specifications to ensure the unit can handle your seasonal needs reliably.

Are window air conditioner heaters energy-efficient enough for daily use?

Modern units with inverter technology are quite energy-efficient, especially when used with programmable timers and smart controls. They can significantly reduce your utility bills compared to older models. Still, their efficiency varies by brand and size, so choosing an Energy Star-rated model can provide added assurance of lower energy consumption during daily use.

What is the best size of a window air conditioner heater for a large room?

For large rooms, units with BTU ratings of 12,000 or more are typically necessary to maintain comfort. For rooms up to 550 square feet, a 12,000 BTU model usually suffices, but for spaces over 1,000 square feet, consider models with 20,000+ BTU. Proper sizing prevents energy waste and ensures consistent heating and cooling, so measure your space precisely before purchasing.

Do smart window units with heating tend to require more maintenance?

Smart features like Wi-Fi connectivity can introduce additional components that may need updates or troubleshooting, but they do not necessarily increase maintenance frequency. Proper filter cleaning and periodic checks remain essential regardless of smart features. If you want minimal upkeep, look for models with accessible filters and durable parts, and be prepared to perform basic maintenance periodically.

Is it worth paying more for inverter technology in a window air conditioner heater?

Inverter technology typically costs more upfront but offers significant savings on energy bills over time. These units operate more smoothly, with less wear and tear, and tend to last longer. If you plan to use your window unit frequently, investing in an inverter model can be a wise choice for reducing ongoing costs and improving comfort through more consistent temperature control.

Conclusion

For those seeking the best overall performance, the Keystone 23,200 BTU Window Air Conditioner with Heat offers impressive heating and cooling power suitable for large spaces. Budget-conscious buyers should consider the ROVSUN 8000 BTU with Heat, which balances affordability with reliable operation. For tech enthusiasts, the Bonnlo 12000BTU with Wi-Fi provides smart control features that enhance convenience. Beginners or those with smaller rooms might prefer compact, easy-to-install units like the LG 7,600 BTU with Heat. Ultimately, your choice depends on room size, budget, and desired features—consider these factors carefully to find the perfect window air conditioner heater for your needs.

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