7 Best Conventional Window Air Conditioners Under $600 in 2026
We compared seven conventional window air conditioners under $600, including inverter and heat models, on room coverage, power, noise and window fit.
By Daniel Brooks
Updated October 15, 2026
Conventional window air conditioners under $600 give you the most choice for large rooms of any budget we cover. This is where inverter compressors, app and voice control, 2-year warranties and heating modes start to show up on 12,000 to 18,800 BTU units. Our list of the best conventional window air conditioners under $600 compares seven of them on room coverage, compressor type, noise, power needs and window fit. To see every size and type in this category, go to our Conventional Window Air Conditioners page.
All seven were listed under the $600 cap when we checked prices in October 2026. Only one of them, the Keystone with heating, needs a 230V outlet. The other six plug into a standard 115V outlet. The units range from 50 to 117 pounds, so window size, sill strength and a second pair of hands matter as much as the spec sheet.
All Products Compared
| Product | Best For | Cooling Capacity | Room Size | Power | Notable Feature |
|---|---|---|---|---|---|
| Hisense 12,000 BTU Inverter Window Air Conditioner | Overall | 12,000 BTU | Up to 550 sq ft | 115V | Inverter, 2-year warranty |
| Keystone 18,800 BTU Window Air Conditioner with Heating | Large rooms | 18,800 BTU | Up to 1,000 sq ft | 230V | 16,000 BTU supplemental heat |
| LG 12,000 BTU Dual Inverter Window Air Conditioner | Smart home control | 12,000 BTU | Up to 550 sq ft | 115V | ThinQ app, Alexa and Google |
| Hisense 14,000 BTU Window Air Conditioner | 700 sq ft with app control | 14,000 BTU | Up to 700 sq ft | 115V | Four-way air direction |
| Amana AMAP151CW 15,000 BTU Window AC | 700 sq ft on a timer | 15,000 BTU | Up to 700 sq ft | 115V | 8-way louvers, Auto Restart |
| Frigidaire 8,000 BTU Window Air Conditioner with Supplemental Heat | Small room with heat | 8,000 BTU | Up to 350 sq ft | 115V | Supplemental heat, 53 dBA |
| Friedrich Chill Premier 10,000 BTU Window & Wall Unit | Window or wall install | 10,000 BTU | Not listed | 115V | Wi-Fi, QuietMaster design |
| Award | Product | WikiCooling Score About WikiCooling ScoreThe WikiCooling Score is our own rating from 0 to 10, based on the criteria described on our How We Review page. It reflects research, not laboratory measurement, and is never influenced by manufacturers, retailers, or affiliate commissions. Learn more › | |
|---|---|---|---|
| Best Value |
Hisense 12,000 BTU Inverter Window Air Conditioner
|
8.1/10 | Buy |
Keystone 18,800 BTU Window Air Conditioner
|
7.5/10 | Buy | |
LG 12,000 BTU Dual Inverter Window Air Conditioner
|
7.2/10 | Buy | |
| Best Overall |
Hisense 14,000 BTU Window Air Conditioner
|
8.1/10 | Buy |
Amana AMAP151CW 15,000 BTU Window AC
|
7.2/10 | Buy | |
| Best Budget |
Frigidaire 8,000 BTU Window Air Conditioner
|
7.5/10 | Buy |
| Best Premium |
Friedrich Chill Premier 10,000 BTU Window & Wall
|
8.1/10 | Buy |
Hisense 12,000 BTU Inverter Window Air Conditioner
This Hisense window AC delivers 12,000 BTU of cooling for rooms up to 550 square feet, using inverter technology for stable temperatures and quieter operation at 35 dB. Wi-Fi control via the ConnectLife app adds convenience, and the low-profile design keeps the window unobstructed. It's a solid choice for larger bedrooms, living rooms, or offices that need efficient, smart cooling.
Pros
- Quiet 35 dB operation
- Inverter technology for efficiency
- Smart app control from anywhere
- Easy installation with included bracket
- Low-profile design saves window space
Cons
- Some gaps in side walls during installation
- Heavy at 63.9 pounds
- No heat mode included
Keystone 18,800 BTU Window Air Conditioner
This Keystone window unit delivers 18,800 BTU cooling and 16,000 BTU supplemental heating for large rooms up to 1,000 sq ft. It requires a dedicated 230V outlet and includes a remote with room temperature sensing. Suitable for year-round comfort in apartments or living rooms where primary heating exists.
Pros
- Powerful cooling for large spaces
- Supplemental heating for cool days
- Remote with room temperature sensing
- Energy saver and sleep modes
- Washable filter for easy maintenance
Cons
- Requires special 230V outlet
- Supplemental heat only above 23 degrees
- Heavy at 117 pounds for installation
LG 12,000 BTU Dual Inverter Window Air Conditioner
With its dual inverter compressor, this LG window AC delivers quiet, efficient cooling for rooms up to 550 square feet. It operates as low as 44 dB in sleep mode and offers WiFi and voice control for convenient operation. Ideal for those seeking a powerful yet silent window unit with smart features.
Pros
- Ultra quiet operation at 44 dB
- Up to 35% more energy efficient
- WiFi and voice control
- 4-way air deflection
- Washable filter with check alert
Cons
- Heavy at 85 pounds
- Some assembly required
- Fragile packaging may cause damage
Hisense 14,000 BTU Window Air Conditioner
For large rooms up to 700 square feet, the Hisense 14,000 BTU window unit combines high cooling capacity with smart app control. Its three operating modes and four-way air direction provide versatile, even cooling, while the 2-year warranty adds peace of mind. Best for those needing powerful cooling with modern convenience.
Pros
- Smart app control with scheduling
- Three operating modes for versatility
- Four-way air direction for even cooling
- 2-year warranty for long-term reliability
- Washable filter for easy maintenance
Cons
- Noise level of 56 dB may be audible in quiet rooms
- Cooling performance may decline above 90°F outdoor temperatures
- Some units reported odor issues and early failure
Amana AMAP151CW 15,000 BTU Window AC
For large rooms up to 700 square feet, this Amana window unit delivers robust cooling and dehumidification with 15,000 BTUs. Three cooling speeds, an eco mode, and a 24-hour timer offer flexible comfort control, while the washable filter and auto restart add convenience. It is a solid choice for anyone needing powerful, straightforward cooling without smart features.
Pros
- Cools large areas up to 700 sq. ft. effectively with 15,000 BTU output.
- Includes multiple useful modes: eco, sleep, and a programmable 24-hour timer.
- Washable filter and filter reminder simplify maintenance.
- Auto restart function restores settings after a power outage.
Cons
- Heavy at nearly 106 pounds, making installation a two-person job.
- No inverter technology, so energy efficiency is modest (SEER 11.9).
- Noise level of 52 dB may be noticeable in quiet bedrooms.
Frigidaire 8,000 BTU Window Air Conditioner
The Frigidaire FHWH084WB1 is a 115-volt window air conditioner that provides both cooling and supplemental heating for year-round comfort in rooms up to 350 sq. ft. It operates at a quiet 53 dBA, making it suitable for bedrooms, and includes Eco, Sleep, and Dry modes alongside a remote control. The unit is best for those who need a single-window solution for moderate climates with occasional heating requirements.
Pros
- Quiet operation at 53 dBA
- Supplemental heat for cool weather
- Eco, Sleep, and Dry modes
- Clean Filter alert for easy maintenance
- Remote control included
Cons
- Heavy at 61 pounds
- Maximum window opening width only 19 inches
- No inverter compressor
Friedrich Chill Premier 10,000 BTU Window & Wall
The Friedrich Chill Premier is a 10,000 BTU cooling-only window and wall unit that prioritizes quiet operation with its QuietMaster Technology. It features smart Wi-Fi control via the Friedrich Go App and voice command compatibility, making it a convenient choice for those who want remote control. This unit also uses eco-friendly R-32 refrigerant and includes a washable filter for easy maintenance.
Pros
- Very quiet operation
- Smart Wi-Fi and voice control
- Eco-friendly R-32 refrigerant
- Washable filter with alert
- Versatile window and wall installation
Cons
- Heavy at 50 pounds
- Cooling only, no heat mode
- No room size specification provided
Top 3 Conventional Window Air Conditioners Under $600 Reviewed
#1 Hisense 12,000 BTU Inverter Window Air Conditioner: Best Overall
Why We Picked It
The Hisense AALW12TW26 puts an inverter compressor into a 12,000 BTU unit rated for rooms up to 550 sq ft, which covers most living rooms, large bedrooms and open kitchens. It plugs into a standard 115V outlet and draws a listed 1,120 watts. It has a 4.1 rating from 20 ratings, tied with its 14,000 BTU sibling for the best average among units here that have a rating count.
An inverter speeds up and slows down instead of switching the compressor fully on and off, so the room stays at a steadier temperature and the unit avoids the loud start-stop cycle of a standard model. Hisense lists the noise level at 35 dB. You get the ConnectLife app for control from your phone, a remote, cooling, fan and dehumidify modes, and a washable mesh filter. An installation bracket comes in the box, and Hisense backs the unit with a 2-year limited warranty, twice the 1-year coverage most units here carry.
Key Specifications
- Cooling Capacity: 12,000 BTU
- Room Size: Up to 550 sq ft
- Compressor: Inverter
- Noise Level: 35 dB (listed)
- Power: 115V, 1,120 watts
- Warranty: 2-year limited
| Pros | Cons |
|---|---|
|
|
Things to Consider
The listing does not give a window opening range, so measure the sash against the unit’s 20.3 inch width before ordering. Plan to seal the side panels with foam if the accordion curtains leave gaps, since leaks cancel out much of the inverter’s efficiency.
Best For
This unit is best for a living room or large bedroom up to 550 sq ft where you want quiet, steady cooling and phone control without rewiring for 230V.
Check the current price and availability of the Hisense 12,000 BTU Inverter Window Air Conditioner on Amazon.
Read our full Hisense 12,000 BTU Inverter Window Air Conditioner review.
#2 Keystone 18,800 BTU Window Air Conditioner with Heating: Best for Large Rooms
Why We Picked It
The Keystone KSTHW18B is the most powerful unit under $600 in our data. It delivers 18,800 BTU of cooling for spaces up to 1,000 sq ft, enough for an open living and dining area or a large studio apartment. It also has 16,000 BTU of supplemental heat, so it can take the chill off cool spring and fall days. It has a 3.8 rating from 69 ratings.
It combines cooling, heating, dehumidifying and fan modes in one unit, with 4-way swing louvers. The I Sense remote reads the temperature where you sit and sends it to the unit every 3 minutes, so the unit cools to your spot rather than to the air at the window. Energy Saver and Sleep modes cut running costs, a filter light reminds you to wash the filter, and the window kit fits openings 28 to 40.5 inches wide with an 18.5 inch minimum height. Keystone covers parts and labor for 1 year and the sealed system for 4 more years.
Key Specifications
- Cooling Capacity: 18,800 BTU
- Heating Capacity: 16,000 BTU supplemental
- Room Size: Up to 1,000 sq ft
- Noise Level: 55 dB
- Power: 230V
- Window Fit: 28″ to 40.5″ wide, 18.5″ minimum height
| Pros | Cons |
|---|---|
|
|
Things to Consider
This unit will not run on a standard 115V outlet, so confirm you have a 230V receptacle near the window or budget for an electrician. The heater is supplemental and is not meant to be a main heat source in winter. At 117.3 pounds, installation needs two people and a support bracket.
Best For
This unit is best for an open space of 700 to 1,000 sq ft where you already have a 230V outlet and want extra heat in the shoulder seasons.
Check the current price and availability of the Keystone 18,800 BTU Window Air Conditioner with Heating on Amazon.
Read our full Keystone 18,800 BTU Window Air Conditioner with Heating review.
#3 LG 12,000 BTU Dual Inverter Window Air Conditioner: Best for Smart Home Control
Why We Picked It
The LG LW1224IVSM is the most connected unit in this group. LG ThinQ lets you start, stop and adjust it from your phone, and it works with Amazon Alexa and Hey Google for voice control. It is rated for rooms up to 550 sq ft, or about 22 by 25 feet, and runs on a standard 115V outlet. It has a 3.6 rating from 57 ratings.
LG’s DUAL Inverter compressor runs as low as 44 dB in sleep mode, and LG states it is up to 35% more energy efficient than the ENERGY STAR requirement. The specifications list a SEER of 15, the highest in this group. You get four cooling and fan speeds with Auto Cool, a digital panel, an LCD remote and a washable filter with a check alert. The kit fits windows 27 to 39 inches wide with a 16 inch minimum opening.
Key Specifications
- Cooling Capacity: 12,000 BTU
- Room Size: Up to 550 sq ft
- Compressor: DUAL Inverter, SEER 15
- Noise Level: As low as 44 dB (sleep mode)
- Power: 115V
- Window Fit: 27″ to 39″ wide, 16″ minimum height
| Pros | Cons |
|---|---|
|
|
Things to Consider
At 85 pounds this is heavier than the Hisense inverter for the same 550 sq ft rating, so it needs a sturdy sill and two people. Inspect the unit when it arrives and keep the box until you have run it, since the packaging can be fragile.
Best For
This unit is best for a bedroom or living room up to 550 sq ft in a home that already runs on Alexa or Google Assistant.
Check the current price and availability of the LG 12,000 BTU Dual Inverter Window Air Conditioner on Amazon.
Other Models Worth Considering
Hisense 14,000 BTU Window Air Conditioner (AAW14CW26). It steps up to 700 sq ft on a standard 115V outlet and keeps the ConnectLife app, remote, touch panel and 2-year warranty of the Hisense above. It has cooling, fan and dehumidifier modes and four-way air direction for even coverage. It uses a standard compressor, lists 56 dB and weighs 67.5 pounds. It has a 4.1 rating from 15 ratings.
Amana AMAP151CW 15,000 BTU Window AC. This is the largest cooling capacity on a 115V outlet in this guide, rated for rooms up to 700 sq ft with 3.5 pints per hour of dehumidification. It has eco and sleep modes, a 24-hour timer, 8-way air louvers, a remote, a washable filter with Clean Alert and Auto Restart. It lists 52 dB and a SEER of 11.9, and at 105.8 pounds it is a two-person install. The listing has no rating count yet.
Frigidaire 8,000 BTU Window Air Conditioner with Supplemental Heat (FHWH084WB1). A smaller unit for rooms up to 350 sq ft that adds supplemental heat for cooler months. It runs at 53 dBA and has Eco, Sleep and Dry modes, 6-way airflow, three fan speeds, a 24-hour timer, a Clean Filter alert and Auto Restart, all on 115V. It weighs 61 pounds and has a 3.7 rating from 40 ratings.
Friedrich Chill Premier 10,000 BTU Window & Wall Unit (CCW10B10B). This one can go in a window or through a wall sleeve. Friedrich’s QuietMaster design adds heavy insulation for lower noise, and you get Wi-Fi control through the Friedrich Go app, voice commands, three cooling and fan speeds, eight-way airflow and a washable filter with alert. It weighs 50 pounds, the lightest here, but the listing gives no room size, and it has no rating count yet.
What to Expect from Conventional Window Air Conditioners Under $600
Raising the budget to this level mostly buys quality of life rather than raw capacity. Units with 12,000 to 15,000 BTU here add inverter compressors, app control, longer warranties or quieter designs. If you want the biggest possible unit, 18,800 BTU with heat is available, but it moves you onto 230V power.
Prices on large window units change often during the season. All seven picks were at or under $600 when we checked, and the product cards show the current price. For cheaper options, see our lower priced conventional window air conditioners. For more on inverter models at any price, read our guide to conventional window air conditioners with inverter compressors. If you want app or voice control, see our list of smart conventional window air conditioners.
How to Choose a Conventional Window Air Conditioner Under $600
Decide Between Inverter and Standard
Two units here, the Hisense 12,000 BTU and the LG 12,000 BTU, use inverter compressors. They hold a steadier temperature and run quieter, which matters most in a bedroom or a room you sit in all evening. The standard units give you more capacity at this budget, up to 15,000 BTU on 115V with the Amana.
Size the Unit to the Space
ENERGY STAR publishes this general guide for sizing a room air conditioner by floor area:
| Room Size (sq ft) | Cooling Capacity (BTU/hr) |
|---|---|
| 100 to 150 | 5,000 |
| 150 to 250 | 6,000 |
| 250 to 300 | 7,000 |
| 300 to 350 | 8,000 |
| 350 to 400 | 9,000 |
| 400 to 450 | 10,000 |
| 450 to 550 | 12,000 |
| 550 to 700 | 14,000 |
| 700 to 1,000 | 18,000 |
Reduce capacity by 10 percent for a heavily shaded room, increase it by 10 percent for a very sunny room, add 600 BTU for each regular occupant beyond two, and add 4,000 BTU if the unit cools a kitchen. Source: ENERGY STAR.
Check the Outlet and the Window
The Keystone 18,800 BTU needs a 230V outlet. Every other unit on this list uses standard 115V. For window fit, the LG needs an opening 27 to 39 inches wide, and the Keystone and Amana need at least 28 inches wide with an 18.5 to 19 inch minimum height. Measure the raised sash before you buy.
Plan for the Weight
Only the Friedrich comes in at 50 pounds. The rest weigh between 61 and 117.3 pounds, so use two people for installation and add an exterior support bracket. For more mounting advice, see our list of conventional window air conditioners for easy installation.
How We Evaluate Conventional Window Air Conditioners
We rank conventional window air conditioners on manufacturer specifications, listing details and aggregated buyer ratings. For this list we kept only units listed at or under $600. We weighed room coverage, compressor type and buyer feedback first, giving more weight to ratings from larger numbers of buyers, then compared power requirements, noise, efficiency, controls, warranty, window fit and weight. Where a listing leaves out a figure such as room size, we say so rather than guess.
Frequently Asked Questions
Is an inverter window air conditioner worth it under $600?
For a bedroom or a room you use for long stretches, yes. The Hisense and LG inverters in this list both cover 550 sq ft on 115V and run quieter than standard units, and the LG lists a SEER of 15. If you need more coverage, a standard unit like the Amana 15,000 BTU covers 700 sq ft instead.
What is the largest window air conditioner I can get under $600?
The Keystone at 18,800 BTU, rated for up to 1,000 sq ft. It needs a 230V outlet. On a standard 115V outlet, the largest is the Amana at 15,000 BTU for 700 sq ft.
Which units under $600 can heat as well as cool?
Two of them: the Keystone, with 16,000 BTU of supplemental heat, and the Frigidaire 8,000 BTU with supplemental heat for rooms up to 350 sq ft. Both are meant for mild weather, not as a main winter heater. For more choices, see our list of conventional window air conditioners with heat.
Which unit under $600 is the quietest?
The Hisense 12,000 BTU inverter lists 35 dB and the LG dual inverter as low as 44 dB in sleep mode. The standard units list 52 to 56 dB.
Final Verdict
The Hisense 12,000 BTU Inverter Window Air Conditioner is the best conventional window air conditioner under $600 for most people, with inverter cooling for 550 sq ft, app control and a 2-year warranty on a standard outlet. If you have a 230V outlet and a space up to 1,000 sq ft, the Keystone 18,800 BTU Window Air Conditioner with Heating gives you the most power and adds heat. If you want voice control and the highest listed efficiency, choose the LG 12,000 BTU Dual Inverter Window Air Conditioner. Check your outlet and measure your window first, since at this size they decide what you can install.
About the author
Daniel Brooks is a home cooling editor at WikiCooling, covering window, portable, through-the-wall and mini-split air conditioners, fans, and dehumidifiers. He researches cooling capacity, energy efficiency, noise levels, installation requirements, and buyer feedback to help homeowners choose the right unit for their room size, climate, and budget.