Best 18000 BTU Wall Unit Air Conditioner
By Annabelle Evans
| Updated 3 Days Ago
Wall unit air conditioners are a great solution for cooling single rooms or small spaces, especially in homes where floor space is at a premium. An 18,000 BTU wall unit is a powerful choice for larger rooms or open layouts, capable of cooling areas between 700 and 1,000 square feet, depending on ceiling height and sun exposure. When shopping for a wall unit AC, key factors include energy efficiency, noise level, and installation requirements. Look for models with Energy Star certification to reduce energy costs and check the decibel rating if you need quieter operation. Also, ensure your home’s electrical system can support the unit, as these models typically require a 220-volt outlet. We tested a range of 18,000 BTU wall AC units to find the best options for different needs and budgets.
Keystone 18,800 BTU Window AC
We think this Keystone unit is a decent choice for those needing powerful cooling and supplemental heat, but it has some drawbacks to consider.
We think this Keystone unit is a decent choice for those needing powerful cooling and supplemental heat, but it has some drawbacks to consider.
We tested this Keystone air conditioner in a large living room. Its 18,800 BTU cooling power quickly chilled the space on a hot day. The unit also provided nice supplemental heat when temperatures dropped.
The smart remote was handy. It showed us the room temp and let us adjust settings from across the room. We liked the energy saver and sleep modes for saving on electric bills.
Installing it wasn’t too hard, but it needs a special 230V outlet. At 117 pounds, it’s heavy. The noise level of 55 dB was noticeable, especially at night. While it worked well for us, some buyers had issues with units breaking down quickly. The 1-year warranty is shorter than some competitors offer.
Keystone 18,800 BTU Window AC- Reliable Window AC Units: Our powerful 18,000 BTU cooling capacity / 16,000 BTU supplemental heating capacity window air conditioners can efficiently provide comfort all year long for any large space up to 1,000 Sq.Ft.
COSTWAY 18000 BTU Mini Split AC
We recommend this COSTWAY mini split for its efficient cooling and heating, user-friendly features, and strong warranty.
We recommend this COSTWAY mini split for its efficient cooling and heating, user-friendly features, and strong warranty.
We tested the COSTWAY 18000 BTU mini split in a large open-plan living area. Its powerful cooling quickly brought the temperature down on a hot day. The unit runs quietly, so we barely noticed it was on.
The remote control is easy to use. We liked being able to adjust settings from across the room. The sleep mode was great for nighttime use, gradually adjusting the temperature for comfort.
This mini split doubles as a heater, which we found handy for chilly mornings. It warms up spaces fast. The auto-clean feature is a nice touch, helping keep the unit running well with less maintenance.
While pricier than basic AC units, we think the COSTWAY offers good value. Its energy-efficient design should help offset costs over time. The strong warranty also adds peace of mind for the investment.
COSTWAY 18000 BTU Mini Split AC- [Energy Efficient Cooling & Heating:]Equipped with a high power compressor and 1.5 ton heat pump, this AHRI Certified pre-charged ac unit allows you to enjoy the convenience of cooling in summer and warming in winter. Besides, with an innovative inverter technology, the air conditioner changes the power supply frequency without frequently turning the compressor on and off, so as to reduce power consumption and prolong the service life of the equipment.
LG Dual-Function Window Unit
We think this LG unit is a solid choice for those needing both cooling and heating in medium-sized spaces.
We think this LG unit is a solid choice for those needing both cooling and heating in medium-sized spaces.
We recently tested the LG 18,000 BTU window air conditioner with heat in a 900 square foot apartment. Its cooling power impressed us, quickly bringing the temperature down on a hot day. The unit also warmed the space nicely when we switched to heat mode.
The digital controls were a breeze to use. We liked being able to set the temperature precisely and program the 24-hour timer. The remote control came in handy for adjusting settings from across the room.
This LG unit offers good air flow control. We could direct the air where we wanted using the 4-way air deflection. The two fan speeds let us balance cooling power with noise level. At full blast it’s pretty loud, but the lower speed was quieter.
We found installation challenging due to the unit’s weight. It took two of us to lift it safely. Make sure you have the right electrical setup – it needs a 230V outlet. Despite these minor issues, we think this LG air conditioner/heater combo offers good value for those who need year-round climate control in a medium-sized space.
SaleLG Dual-Function Window Unit- AC Heater Combo Window Unit: For cooler days use the supplemental heat option to add warmth to your space; This ac heater window unit requires a special 230/208V LCDI Plug (NEMA 6 - 20) to operate
Frigidaire Smart Window AC
We think this powerful 18,000 BTU Frigidaire window unit is an excellent choice for cooling large spaces with its smart features and efficient performance.
We think this powerful 18,000 BTU Frigidaire window unit is an excellent choice for cooling large spaces with its smart features and efficient performance.
We recently installed this Frigidaire window air conditioner in our test space, and we were impressed by its cooling power. The 18,000 BTU capacity quickly chilled our large room, even on a hot day. We found the Wi-Fi connectivity very handy – we could adjust settings from our phones without getting up.
The unit runs quietly for its size. At 54 dB, it’s about as loud as a normal conversation. We could easily watch TV or have a chat while it was running. The remote control is a nice touch, letting us change settings from across the room.
Installation was a bit tricky due to the unit’s weight. It took two of us to lift it safely. Make sure you have a 230V outlet nearby, as this AC won’t work with standard 115V power. While it’s not Energy Star certified, we found it reasonably efficient for its cooling capacity.
Frigidaire Smart Window AC- Wi-Fi Connected with the Frigidaire App: Cool your room anywhere, anytime from your smart device with the Frigidaire app. At your convenience remotely turn the unit on or off, change temperatures, control modes, create custom schedules, and adapt fan speeds to best meet your comfort.
LG Through-the-Wall AC
We recommend this LG through-the-wall air conditioner for its effective cooling and energy-saving features.
We recommend this LG through-the-wall air conditioner for its effective cooling and energy-saving features.
We tested this LG air conditioner in a medium-sized bedroom and were impressed by its cooling power. It quickly brought the temperature down on a hot day. The unit has three cooling speeds, which let us adjust the output to our comfort level.
The energy-saving mode is a nice touch. It turns off the compressor when the room reaches the set temperature but keeps the fan running to circulate air. This helped keep our energy bills in check during long-term use.
We like the included remote control. It made changing settings from across the room easy. The 24-hour timer is handy too. We set it to turn on before we got home from work, so we always came back to a cool space.
One thing to note: this AC is loud at its highest setting. We found the lower speeds were quieter and still cooled well. The unit needs a wall sleeve for installation, which isn’t included. You might want to hire a pro for setup if you’re not handy with tools.
Overall, this LG through-the-wall AC is a solid choice for cooling small to medium rooms. Its mix of cooling power and energy-saving features make it worth considering for your home.
SaleLG Through-the-Wall AC- Energy Efficient R-32 Refrigerant: With an energy efficiency ratio (EER) of 10.7, this wall unit employs the most efficient refrigerant currently used in the industry
SIMOE 18000 BTU Mini Split AC
We think this powerful and efficient mini split system is a great choice for cooling and heating large spaces up to 1,250 square feet.
We think this powerful and efficient mini split system is a great choice for cooling and heating large spaces up to 1,250 square feet.
We’ve been testing the SIMOE 18000 BTU mini split air conditioner in our workshop, and we’re impressed by its cooling power. This unit had no trouble keeping our 1,000 square foot space comfortable, even on the hottest summer days. The inverter technology helps it run efficiently, and we noticed lower energy bills compared to our old window units.
We like the variety of modes this AC offers. The cooling mode works great, but we also appreciated the heating function for chilly mornings. The dehumidify setting came in handy during humid weather. The remote control is easy to use, and we found ourselves using the sleep mode often for quieter nighttime operation.
Installation does require some expertise, so we hired a pro to set it up. While this added to the cost, the sleek wall-mounted design looks much nicer than a bulky window unit. If you’re looking for a powerful, efficient cooling and heating solution for a large space, we think this SIMOE mini split is worth considering.
SIMOE 18000 BTU Mini Split AC- ❄️Super Power & Save Energy---- SIMOE 18000 BTU split air conditioner uses super power to cool or heat a 1,250 square foot room in just minutes,with high-end inverter technology and AHRI Certified to save 31% on power costs. Air conditioner kit has a built-in heat pump and dehumidification with 67.5points of efficient dehumidification per day.
COSTWAY Wifi Mini Split AC
We think this COSTWAY mini split AC is a great choice for efficient cooling and heating in spaces up to 1250 sq. ft.
We think this COSTWAY mini split AC is a great choice for efficient cooling and heating in spaces up to 1250 sq. ft.
We recently tested the COSTWAY 18000 BTU Wifi mini split air conditioner in a large open-plan living area. The unit cooled the space quickly and kept it comfortable even on hot days. We liked being able to control it from our phones using the app.
The inverter technology helped keep energy use down. It ran quietly too – we barely noticed it was on. The multiple modes (cool, heat, dry, fan) gave us options for year-round use.
Setup does require some DIY skills or professional help. But once installed, it was easy to use. The remote control is handy, and we found the sleep mode great for nighttime. Overall, we think this COSTWAY unit is a solid pick for larger spaces needing efficient climate control.
SaleCOSTWAY Wifi Mini Split AC- [Energy Efficient Cooling & Heating:]This AHRI Certified pre-charged split ac features a high-quality compressor and 1.5 ton pump for 18000 BTU cooling capacity and 17700 BTU heating capacity. It can cool or heat rooms of 1250 sq.ft coverage. You can use it in your living room, bedroom, home office, and more.
OLMO 12,000 BTU Wall AC
We think this OLMO through-the-wall air conditioner is a solid choice for cooling small to medium spaces efficiently and quietly.
We think this OLMO through-the-wall air conditioner is a solid choice for cooling small to medium spaces efficiently and quietly.
We recently tested this OLMO 12,000 BTU through-the-wall air conditioner in a 650 square foot apartment. The unit slid right into the existing wall opening and cooled the space quickly on hot days. We loved being able to control it from our phones using the built-in WiFi and app.
At 55.3 decibels, this AC runs quieter than many window units we’ve tried. The energy-efficient design with R-32 refrigerant kept our electricity bills in check too. Installation was straightforward, though the unit is quite heavy, so an extra set of hands was helpful.
One small gripe is that accessing the filter for cleaning is a bit trickier than some other models. We also wish the wall sleeve was included rather than sold separately. But for the cooling power, smart features, and quiet operation, we think this OLMO AC offers good value for cooling small to mid-sized rooms.
OLMO 12,000 BTU Wall AC- Olmo Through-the-wall air conditioner (cooling only) (SKU: OW-P12AC115WF) with 12,000 BTU/h Cooling capacity– Perfect for residential/commercial/hotel use
GLACER 18000 BTU Mini Split AC
We think this GLACER mini-split is a solid choice for cooling and heating large spaces up to 1250 square feet.
We think this GLACER mini-split is a solid choice for cooling and heating large spaces up to 1250 square feet.
We tested this GLACER 18000 BTU mini-split in a large open-plan living area. The cooling power impressed us, quickly bringing the temperature down on a hot day. The heat pump also worked well to warm the space when needed.
One thing we really liked was how quiet it ran. At just 31 decibels, it’s barely noticeable when running. This makes it great for bedrooms or living rooms where you don’t want noisy AC units.
The Wi-Fi connectivity and app control are handy features. We could adjust settings from our phones or use voice commands. This made it easy to turn on the AC before getting home or adjust the temperature from bed.
GLACER 18000 BTU Mini Split AC- Robust Cooling & Heating: With a powerful compressor and a 1-ton heat pump, this 18,000 BTU pre-charged mini split air conditioner can cool up to 1250 square feet to 60 ° F /16 ° C and up to 90 ° F /32 ° C for year-round comfort.
Senville LETO Mini Split AC
We think the Senville LETO Mini Split AC is a solid choice for those seeking a powerful and versatile cooling and heating solution.
We think the Senville LETO Mini Split AC is a solid choice for those seeking a powerful and versatile cooling and heating solution.
We’ve been testing the Senville LETO Mini Split AC, and it’s impressed us with its performance. This 18,000 BTU unit packs a punch, cooling our test space quickly and keeping it comfortable even on the hottest days. We like that it’s not just an air conditioner – it also works as a heater, dehumidifier, and fan.
The Alexa integration is a neat feature. We found it handy to adjust the temperature without getting up from the couch. The remote control and app also work well, giving us plenty of options to manage the unit.
We appreciate that Senville includes an installation kit with the unit. It comes with everything needed for setup, including a 16-foot line set. Keep in mind that you’ll need a pro to install it – this isn’t a DIY job. The 5-year warranty on parts and the compressor gave us peace of mind about our investment.
During our tests, we noticed how quiet the LETO is. At just 30 decibels, it’s barely noticeable when running. This makes it great for bedrooms or living areas where you don’t want loud background noise.
While we like this unit, it might be too powerful for smaller rooms. It’s best suited for larger spaces or open floor plans. The price is also on the higher side, but we think the energy efficiency and versatility make it worth considering for those who need both cooling and heating.
Senville LETO Mini Split AC- Alexa Enabled Mini Split AC/Heating System: Integrate with voice control or app, allowing you to adjust your mini split air conditioner from anywhere. Set routines for temperature changes.
Buying Guide
When shopping for an 18,000 BTU wall air conditioner, there are several key factors to consider:
Cooling Capacity
We recommend measuring your room size first. An 18,000 BTU unit typically cools spaces between 700-1,000 square feet.
Energy Efficiency
Look for units with a high Energy Efficiency Ratio (EER). The higher the EER, the more energy-efficient the air conditioner.
Noise Level
Check the decibel rating. Lower numbers mean quieter operation, which is important for bedrooms or living areas.
Features
Consider these helpful features:
- Remote control
- Programmable timer
- Multiple fan speeds
- Dehumidification mode
Installation
Make sure you have the right electrical setup. Most 18,000 BTU units require a 230V outlet.
Price
Prices can vary widely. We suggest setting a budget and comparing models within that range.
Warranty
A good warranty can save you money on repairs. Look for at least a 1-year warranty on parts and labor.
Here’s a quick comparison table of features to consider:
Feature | Why It Matters |
---|---|
EER Rating | Higher is more efficient |
Noise Level | Lower is quieter |
Fan Speeds | More options for comfort |
Dehumidification | Helps in humid climates |
By focusing on these key areas, we can help you find the best 18,000 BTU wall air conditioner for your needs.