7 Best Conventional Window Air Conditioners Under $700 in 2026
We compared seven conventional window air conditioners under $700 for large rooms on capacity, inverter vs standard, 115V vs 230V power and window fit.
By Daniel Brooks
Updated October 15, 2026
Conventional window air conditioners under $700 are the top tier of window units, built for big living rooms, open-plan floors and spaces up to 1,000 sq ft. At this budget you can choose an efficient inverter on a standard outlet, an 18,000 BTU unit with heat, or a high-capacity cooling-only workhorse. Our list of the best conventional window air conditioners under $700 compares seven of them on capacity, compressor type, power needs, noise 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 $700 cap when we checked prices in October 2026. Four of them need a 230V outlet, and three plug into a standard 115V outlet, so your wiring is the first filter. Every unit with a listed weight comes in between 78 and 122.8 pounds, which makes installation a real job, not an afterthought.
All Products Compared
| Product | Best For | Cooling Capacity | Room Size | Power | Notable Feature |
|---|---|---|---|---|---|
| LG LW1522FVSM 14,000 BTU Window Air Conditioner | Overall | 14,000 BTU | Up to 700 sq ft | 115V | DUAL Inverter, Wi-Fi |
| Patikuin 18000 BTU Window Air Conditioner & Heater Combo | Heating and cooling | 18,000 BTU | Up to 1,000 sq ft | 230V | Heat, app and voice control |
| Keystone KSTAW18C 18,000 BTU Window Air Conditioner | Large rooms | 18,000 BTU | Up to 1,000 sq ft | 230V | Thermostat in the remote |
| Friedrich Chill Premier 14,000 BTU Window Air Conditioner | Efficiency | 14,000 BTU | Not listed | 115V | Inverter, SEER 18 |
| Whirlpool 15,000 BTU Window Air Conditioner | 700 sq ft, standard unit | 15,000 BTU | Up to 700 sq ft | 115V | Auto Restart |
| Whirlpool 18,000 BTU Window Air Conditioner | Humid large spaces | 18,000 BTU | Up to 1,000 sq ft | 230V | 4.75 pints per hour |
| BLACK+DECKER 18,000 BTU Window Air Conditioner | Compressor warranty | 18,000 BTU | Up to 1,000 sq ft | 230V | 5-year compressor parts |
| 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 › | |
|---|---|---|---|
LG LW1522FVSM 14,000 BTU Window Air Conditioner
|
7.8/10 | Buy | |
| Best Value |
Patikuin 18000 BTU Window Air Conditioner & Heater
|
8.3/10 | Buy |
| Best Budget |
Keystone KSTAW18C 18,000 BTU Window Air
|
7.6/10 | Buy |
| Best Overall |
Friedrich Chill Premier 14,000 BTU Window Air
|
8.9/10 | Buy |
Whirlpool 15,000 BTU Window Air Conditioner
|
7.3/10 | Buy | |
| Best Premium |
Whirlpool 18,000 BTU Window Air Conditioner
|
7.6/10 | Buy |
BLACK+DECKER 18,000 BTU Window Air Conditioner
|
7.3/10 | Buy |
LG LW1522FVSM 14,000 BTU Window Air Conditioner
This LG window air conditioner delivers 14,000 BTU of cooling for rooms up to 700 square feet. Its Dual Inverter compressor provides energy savings and quiet operation, with sound levels as low as 44 dB in sleep mode. Built-in Wi-Fi enables remote control via the LG ThinQ app or voice commands, and the included EZ Mount kit simplifies installation in double-hung windows.
Pros
- Energy-efficient Dual Inverter compressor
- Ultra-quiet sleep mode at 44 dB
- Smart control via app and voice
- Covers up to 700 sq ft
- Washable filter with reminder
Cons
- Heavy at 85 pounds for installation
- Requires window width 27 to 39 inches
- Cooling only, no heat mode
Patikuin 18000 BTU Window Air Conditioner & Heater
This 18000 BTU window unit from Patikuin combines cooling, heating, dehumidification and fan modes for year-round comfort in rooms up to 1000 sq. ft. It offers smart control via app, remote, or voice commands, and operates as quietly as 52 dB. Ideal for those seeking a versatile window AC with heating for medium to large spaces.
Pros
- 4-in-1 cooling, heating, dehumidification, fan
- Smart app and voice control
- Quiet operation at 52 dB
- Energy efficient ECO mode
- Covers up to 1000 sq ft
Cons
- Heavy at 122.8 pounds for installation
- Requires 230V outlet
- Only fits windows 19" tall and 28-41" wide
Keystone KSTAW18C 18,000 BTU Window Air
With 17,700 BTU of cooling power, this Keystone window air conditioner covers rooms up to 1000 square feet. Its built-in dehumidifier extracts 3.8 pints of moisture per hour, and the included remote control features a thermostat that reads the room temperature and adjusts cooling every 3 minutes. Energy saver and sleep modes help reduce power consumption.
Pros
- Cools rooms up to 1000 sq ft
- Built-in dehumidifier at 3.8 pints per hour
- Remote with thermostat adjusts cooling automatically
- Energy saver and sleep modes
- Washable mesh filter with alert
Cons
- 230V power requirement may limit placement
- No inverter compressor; operates at fixed speed
- Heavy at 114.4 pounds for installation
Friedrich Chill Premier 14,000 BTU Window Air
The Friedrich Chill Premier 14,000 BTU window unit delivers powerful cooling with inverter technology for energy efficiency and quieter operation. Its built-in Wi-Fi allows control via smartphone app, and the 18 SEER rating indicates strong efficiency. Ideal for medium to large rooms needing reliable cooling without heat pump functionality.
Pros
- Inverter technology for quiet, efficient operation
- Wi-Fi and app control included
- High 18 SEER efficiency rating
- Compact 22-inch width fits standard windows
Cons
- Cooling only, no heat pump function
- Heavy at 78 pounds for installation
- Requires minimum 22-inch window width
Whirlpool 15,000 BTU Window Air Conditioner
Capable of cooling rooms up to 700 square feet, this Whirlpool window unit also removes 3.5 pints of moisture per hour. Its 56 dB noise level is moderate, and the included remote and 24-hour timer add convenience. Best for large bedrooms or living spaces where dehumidification is also needed.
Pros
- Cools up to 700 sq. ft.
- Built-in dehumidifier
- Remote and 24-hour timer
- Filter maintenance reminder
- Auto restart feature
Cons
- 56 dB noise level may be noticeable
- SEER 11.9 is not the most efficient
- Requires window height of at least 19 inches
Whirlpool 18,000 BTU Window Air Conditioner
This Whirlpool window air conditioner delivers 18,000 BTU of cooling for rooms up to 1,000 square feet, plus dehumidification at 4.75 pints per hour. It requires a 230V outlet and weighs 116.8 pounds, so it suits homes with dedicated high-voltage wiring and large windows. Three cooling speeds, Eco mode, Sleep mode, and a 24-hour timer offer flexible control.
Pros
- Powerful 18,000 BTU cooling for large spaces
- Dehumidifier function included
- Programmable 24-hour timer
- Washable filter with Clean Alert
- Remote control and multiple fan speeds
Cons
- Requires a 230V electrical outlet (not standard 115V)
- Heavy at 116.8 pounds, may need two people to install
- No inverter compressor (cycles on/off)
BLACK+DECKER 18,000 BTU Window Air Conditioner
With its 18,000 BTU capacity, the BLACK+DECKER window air conditioner handles spaces up to 1,000 square feet. The inverter compressor and R32 refrigerant deliver efficient, ozone-friendly cooling. A full-function remote and easy-install accordion panels make it a practical choice for large rooms.
Pros
- Covers up to 1,000 square feet
- Inverter compressor for efficient operation
- Ozone-friendly R32 refrigerant
- Remote with sleep and timer modes
- Easy accordion side-panel installation
Cons
- Very heavy at 116.8 pounds
- Fits only double-hung windows
- Noise level of 54.5 dB may be noticeable
Top 3 Conventional Window Air Conditioners Under $700 Reviewed
#1 LG LW1522FVSM 14,000 BTU Window Air Conditioner: Best Overall
Why We Picked It
The LG LW1522FVSM is the most complete package under $700. It cools rooms up to 700 sq ft with an LG DUAL Inverter compressor and still runs on a standard 115V outlet, so most buyers can install it without new wiring. It has a 4.0 rating from 65 ratings.
LG lists it as low as 44 dB in sleep mode, thanks to its BLDC motor and inverter compressor, and states it uses up to 35% less energy than the ENERGY STAR requirement. The specifications give a SEER of 14. LG ThinQ lets you control it from your phone, it works with Google Assistant and Alexa, and it has three cooling and fan speeds and 4-way air deflection. The slide in-out chassis and EZ Mount kit fit double-hung windows 27 to 39 inches wide with a 16 inch opening, and the slide-out washable filter has a reminder.
Key Specifications
- Cooling Capacity: 14,000 BTU
- Room Size: Up to 700 sq ft
- Compressor: DUAL Inverter, SEER 14
- Noise Level: As low as 44 dB (sleep mode)
- Power: 115V, 1,260 watts
- Window Fit: 27″ to 39″ wide, 16″ opening
| Pros | Cons |
|---|---|
|
|
Things to Consider
The window range is fixed at 27 to 39 inches wide, so very wide or narrow windows need another unit. The quiet 44 dB figure applies to sleep mode, while the spec sheet lists 53 dB for normal running.
Best For
This unit is best for a living room or open space up to 700 sq ft where you want quiet, efficient cooling and smart control on a normal outlet.
Check the current price and availability of the LG LW1522FVSM 14,000 BTU Window Air Conditioner on Amazon.
Read our full LG LW1522FVSM 14,000 BTU Window Air Conditioner review.
#2 Patikuin 18000 BTU Window Air Conditioner & Heater Combo: Best for Heating and Cooling
Why We Picked It
The Patikuin combo cools, heats, dehumidifies and runs as a fan in spaces up to 1,000 sq ft, so one unit can handle a large room through summer and the cooler edges of the year. It has a 4.3 rating from 68 ratings, the highest average in this guide among units with more than a handful of ratings.
You can control it from an app, the remote, the control panel or by voice through Alexa. It has 5 operating modes, 3 fan speeds, a 24-hour timer, an ECO energy saver and sleep mode, and Patikuin lists it as quiet as 52 dB. The mounting kit fits windows 19 inches tall and 28 to 41 inches wide, and a reminder tells you when to clean the washable filter.
Key Specifications
- Cooling Capacity: 18,000 BTU
- Heat: Yes, heating mode included
- Room Size: Up to 1,000 sq ft
- Noise Level: As low as 52 dB
- Power: 230V
- Window Fit: 28″ to 41″ wide, 19″ tall
| Pros | Cons |
|---|---|
|
|
Things to Consider
The short 30-day manufacturer warranty is the main drawback next to the 1-year coverage from LG, Keystone and Whirlpool, so register the unit and test every mode right away. The listing does not give a heating capacity in BTU. At 122.8 pounds this is the heaviest unit here and needs two people plus a bracket.
Best For
This unit is best for a large living area with a 230V outlet where you want one window unit for both cooling and heating, plus app control.
Check the current price and availability of the Patikuin 18000 BTU Window Air Conditioner & Heater Combo on Amazon.
Read our full Patikuin 18000 BTU Window Air Conditioner & Heater Combo review.
#3 Keystone KSTAW18C 18,000 BTU Window Air Conditioner: Best for Large Rooms
Why We Picked It
The Keystone KSTAW18C is a proven cooling-only unit for spaces up to 1,000 sq ft. It has a 3.9 rating from 92 ratings, the most buyer feedback in this guide. It removes 3.8 pints of moisture per hour while it cools, which helps in humid summers.
Its remote has a built-in thermostat that reads the temperature where you sit and sends it to the unit every 3 minutes, so you cool the room to your seat, not to the air by the window. It has 3 cooling modes, 3 fan speeds, 4-way louvers, a programmable timer and Energy Saver and Sleep modes. 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: 18,000 BTU
- Room Size: Up to 1,000 sq ft
- Dehumidification: 3.8 pints per hour
- Noise Level: 54 dB
- Power: 230V, SEER 11.8
- Window Fit: 28″ to 40.5″ wide, 18.5″ minimum height
| Pros | Cons |
|---|---|
|
|
Things to Consider
The specifications list a slightly lower cooling figure than the 18,000 BTU in the title, so size it toward the smaller end of its 1,000 sq ft range. It is a standard compressor that cycles on and off, so it is louder and less efficient than the LG inverter. You need a 230V outlet.
Best For
This unit is best for a large living room, open floor or apartment up to 1,000 sq ft with a 230V outlet, where you want a proven cooling-only unit.
Check the current price and availability of the Keystone KSTAW18C 18,000 BTU Window Air Conditioner on Amazon.
Read our full Keystone KSTAW18C 18,000 BTU Window Air Conditioner review.
Other Models Worth Considering
Friedrich Chill Premier 14,000 BTU Window Air Conditioner (CCF14B10B). The most efficient unit here on paper, with an inverter compressor and a listed SEER of 18. It runs on 115V and adds Wi-Fi and app control. It weighs 78 pounds and fits a 22 inch window opening. The listing does not give a room size, and its 4.7 rating comes from only 7 ratings.
Whirlpool 15,000 BTU Window Air Conditioner. A standard-compressor unit for rooms up to 700 sq ft on a 115V outlet. It removes 3.5 pints of moisture per hour and has eco and sleep modes, a 24-hour timer, 8-way louvers, a remote, a Clean Alert filter reminder and Auto Restart. It lists 56 dB and a SEER of 11.9 and needs a 19 inch minimum window height. It has a 3.7 rating from 57 ratings.
Whirlpool 18,000 BTU Window Air Conditioner (WHAW182CW). It covers up to 1,000 sq ft and has the strongest dehumidification here at 4.75 pints per hour, a good fit for sticky climates. It has three cooling speeds, eco and sleep modes, a 24-hour timer and 8-way louvers. It needs 230V, fits windows 28 to 41 inches wide, lists 60 dB, the loudest here, and weighs 116.8 pounds. It has a 3.9 rating from 13 ratings.
BLACK+DECKER 18,000 BTU Window Air Conditioner (BD18WT6). An 18,000 BTU unit for up to 1,000 sq ft on 230V, with auto, low, medium and high settings, sleep mode, an energy saver, a 24-hour timer and a full-function remote. Accordion side panels fit double-hung windows 28 to 40.5 inches wide. It lists 54.5 dB and SEER 11.8, weighs 116.8 pounds and backs the compressor with 5 years of parts coverage. It has a 3.7 rating from 20 ratings.
What to Expect from Conventional Window Air Conditioners Under $700
This is the highest budget most shoppers need for a window unit. The money goes into one of three things: an efficient inverter on a 115V outlet, an 18,000 BTU cooling-only unit for very large spaces, or a large unit that also heats.
Prices on large window units change often during the season. All seven picks were at or under $700 when we checked, and the product cards show the current price. For cheaper options, see our lower priced conventional window air conditioners. For more models at this capacity, read our guide to 18,000 BTU conventional window air conditioners, and for very large spaces at any price, see conventional window air conditioners for large spaces.
How to Choose a Conventional Window Air Conditioner Under $700
Check Your Outlet First
The Patikuin, Keystone, Whirlpool 18,000 BTU and BLACK+DECKER need a 230V outlet. The LG, Friedrich and Whirlpool 15,000 BTU use a standard 115V outlet. Unless you already have a 230V receptacle near the window, stick to the 115V group or plan for an electrician.
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.
Do Not Oversize
An 18,000 BTU unit in a medium room cools the air fast and shuts off before it removes much moisture, leaving the room cold and clammy. If your space is under 700 sq ft, the LG 14,000 BTU or the Whirlpool 15,000 BTU will usually feel better than an 18,000 BTU unit.
Measure the Window and Plan the Install
The 18,000 BTU units need openings at least 28 inches wide and 18.5 to 19 inches tall, and the LG needs 27 to 39 inches wide. Every listed weight here is 78 pounds or more, so use two people and an exterior support bracket.
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 $700. 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 gives two different figures, we note both and size against the more conservative one.
Frequently Asked Questions
Is an 18,000 BTU window air conditioner worth it?
Only for a large space. The 18,000 BTU units here are rated for up to 1,000 sq ft and all need 230V. For a room up to 700 sq ft, the LG 14,000 BTU inverter on 115V is quieter and costs less to run.
Which window air conditioner under $700 runs on a regular outlet?
The LG 14,000 BTU, the Friedrich Chill Premier 14,000 BTU and the Whirlpool 15,000 BTU all use a standard 115V outlet. The other four need 230V.
Which unit under $700 can heat?
The Patikuin combo has a heating mode along with cooling, dehumidifying and fan. For more choices, see our list of conventional window air conditioners with heat.
Which unit under $700 is the most efficient?
On listed SEER, the Friedrich Chill Premier leads at 18, followed by the LG at 14. The standard 18,000 BTU units list 10.4 to 11.8.
Final Verdict
The LG LW1522FVSM 14,000 BTU Window Air Conditioner is the best conventional window air conditioner under $700 for most homes, with quiet inverter cooling for 700 sq ft and smart control on a standard outlet. If you want one unit to cool and heat a large space and you have 230V, choose the Patikuin 18000 BTU Window Air Conditioner & Heater Combo. For a proven cooling-only unit for up to 1,000 sq ft, the Keystone KSTAW18C 18,000 BTU Window Air Conditioner has the most buyer feedback here. Check your outlet and measure the window before you order.
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.