Best 15000 BTU Air Conditioners Reviewed

Tony Case
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Being hot really sucks. You want a good air conditioner to stay comfortable year round. There are a lot of options to choose from, so we hope our 15000 BTU air conditioners buying guide can help you find the best fit.

NameCategoryProduct
Dometic Brisk II Rooftop Air ConditionerBest OverallDometic Brisk II Rooftop Air Conditioner
Emerson Quiet Kool EARC15RSE1 SMART 15,000 BTU 115V Window Air ConditionerBudget PickEmerson Quiet Kool EARC15RSE1 SMART 15,000 BTU 115V Window Air Conditioner
Mitsubishi MZ-FH15NAUpgrade PickMitsubishi MZ-FH15NA

1. Dometic Brisk II Rooftop Air Conditioner

Our rating: 9 / 10

Dometic Brisk II Rooftop Air Conditioner

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We do have a few points of concern about the Dometic Brisk II RV / Camper Air Conditioner, primarily with regards to its build quality. For example, on its pressure drop settings, it says that it can support a maximum of 8.1 PSI. However, one user pointed out that it didn’t support even 3 PSI. On the other hand, the Plus mode supports up to 18.7 PSI. Another factor is that many other customers feel that the unit exhibits a lot of drift.

On top of that, the unit claims that it can support a 3,000-gallon capacity. However, one customer said that they end up with about 8 gallons of wastewater. We’re not sure what the truth is there, but it’s certainly something to consider.

2. 15000 BTU KLIMAIRE 9.6 EER PTHP Heat Pump

Our rating: 7 / 10

15000 BTU KLIMAIRE 9.6 EER PTHP Heat Pump

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(KLIMAIRE QM9676F)

This AC comes with a fully-enclosed condenser to protect the unit from debris. You can also easily check on your system with Digital Controls. It also allows you to set the temperature from either the thermostat or the remote control with this unit. It is ENERGY STAR certified and you will even get a 10-year warranty on the compressor.

The remote control utilizes a 15-foot range, allowing you to control the temperature from wherever the AC is installed in your home. Another important feature is the 24-hour timer, which allows you to set a specific time for the AC to reach a certain temperature, and then turn off after a specified amount of time.

3. Emerson Quiet Kool EARC15RSE1 SMART 15,000 BTU 115V Window Air Conditioner

Our rating: 7 / 10

Emerson Quiet Kool EARC15RSE1 SMART 15,000 BTU 115V Window Air Conditioner

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Pros:

  • One of the most affordable units on the market
  • Large air conditioner for large rooms
  • Technologically advanced cooling units
  • Remote control with wi-fi capabilities
  • Provides cool air to multiple rooms
  • Great customer service

Cons:

  • Noisy
  • Doesn’t cool as quickly as some pricey models

This window air conditioner is a great choice for larger bedrooms, living rooms, and offices given its 15,000 BTU cooling capacity. It’s nearly 35% more efficient than comparable models, and it uses the larger, more efficient R-410A refrigerant.

The unit features the ultra-quiet WhisperKool technology to ensure that the indoor environment remains calm even when the unit is cooling down the room. Overall, the unit is quieter by 9 decibels! The unit also features a dehumidifying option to remove moisture from the air and keep a dry environment.

The TrueAir Purifier helps eliminate pollen and other contaminants in the air. The unit also comes with an ionizer to neutralize dust and allergens in the air. The filter options range from two pleated filters or one electronic filter. The TrueAir feature provides clean, cool air.

4. Airxcel 08-0080 Mach 15 15.0 Arctic Wht Upper

Our rating: 6 / 10

Airxcel 08-0080 Mach 15 15.0 Arctic Wht Upper

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Pros:

  • Reasonable price
  • 3-speed settings for precise control
  • 2-way air intake design
  • Sturdy remote control
  • 3-year warranty

Cons:

  • Compressor tends to become unreliable
  • Performance not efficient enough in cold weather

If you’re looking for an AC that’s reliable, you wont be disappointed with the Airxcel 01800 Mach 15 AC. With a 2-way air inlet, you’ll be able to provide dispersed and even air distribution across the room. It also has the capability to dehumidify your room if you need.

This AC comes with a 3-speed fan setting and a pretty handy remote control. It’s powered by a compressor and has an aluminum evaporator/heat exchange. This AC has an Inverter technology, which can stabilize the current and voltage. Heat Pumps are very important and Airxcel have included a mini-split heat pump for reliable and easy operation.

5. LG LW1516ER 15,000 BTU 115V Window-Mounted AIR Conditioner

Our rating: 6 / 10

LG LW1516ER 15,000 BTU 115V Window-Mounted AIR Conditioner

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This air conditioner is suitable for large rooms and studios as well as small to medium-sized spaces like living rooms. It comes with a remote control, and a really handy auto mode that saves you from manually adjusting the temperature and fan. The remote control allows you to change the settings and program the air conditioner from any spot, regardless of where it is placed in the room.

This window air conditioner features a multi air flow system for better cooling and incorporates triple filtered Fresh Air intake for a clean and healthy supply of air.

It has three cooling functions that allow you to customize your in-room comfort: energy save, sleep, and dry. The energy save functionality is ideal to keep the temperature comfortable without increasing your energy bill. The sleep mode reduces the fan speed and cooling to a minimum so that you can easily fall asleep. The fresh function provides a continuous supply of clean air into your room. This is an excellent feature for maintaining good air in your room, especially if you tend to smoke indoors.

6. Friedrich Chill Series CP15G10B Room Air Conditioner

Our rating: 5 / 10

Friedrich Chill Series CP15G10B Room Air Conditioner

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Who said you need to spend big money on a BTU unit to cool down your room? The CP15F10B features a highly efficient design that allows it to remove humidity from your room without a problem. This AC has a 15,500 BTU cooling capacity that'll be able to effectively cool down a room that is 350-400 sqft.

Despite its small size, this 15000 BTU AC features plenty of cool features. It's even equipped with a 24-hour programmable timer that lets you set up the unit to shut off and on according to your needs. It also has a nice electronic LCD display that shows the temperature of your room.

The CP15G10B comes with an impressive 5.5EER energy efficiency rating, leading to less energy costs compared to some models. It has a 4-way air direction that allows you to circulate air evenly throughout your room without affecting its overall cooling performance. Plus, the CP15G10B also comes with a telescopic panel that lets you adjust its height.

7. Koldfront 14,000 BTU 230V Through the Wall Air Conditioner

Our rating: 5 / 10

Koldfront 14,000 BTU 230V Through the Wall Air Conditioner

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Pros:

  • Sleek and modern design
  • Economical
  • Energy Star rating
  • Energy efficient
  • Environment friendly
  • Portable
  • Multifunctional
  • Less installation required
  • Quick shipping
  • Easy to use

Cons:

  • Low noise output
  • Not energy-efficient
  • Inefficient unit

Even if you’ve never shopped for an air conditioner before, you’ll find this product very easy to use. It comes with an EZ-Installer for in-flowing cool air during installation. The remote control allows you to set the temperature of the room and the timer to set the cool air to turn on and off at the desired time.

An Energy Management Software also comes with the unit to help you save on your utility bills. The air conditioner is not only energy efficient but also won’t adversely affect the environment. So you can rest easy knowing you’re using an eco-friendly product.

8. Amana PTAC 15,000 BTU Heat Pump Unit 3.5kW Back Up Heater

Our rating: 5 / 10

Amana PTAC 15,000 BTU Heat Pump Unit 3.5kW Back Up Heater

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Pros:

  • CAN operate at 59 degrees Farenheit
  • Very quiet
  • Costs less per BTU than non-portable air conditioners
  • Has a good level of customer support
  • Programmable
  • Low Energy Costs
  • Cools Room Quickly
  • Very portable
  • Easy to install
  • Doesn’t cost that much to run

Cons:

  • Airflow is somewhat restricted on this model
  • Not as effective in heating large areas
  • Doesn’t cool down the whole house
  • Doesn’t have a permanent remodeling of duct work
  • Costs more to run than smaller air conditioning systems

9. Mitsubishi MZ-FH15NA

Our rating: 4 / 10

Mitsubishi MZ-FH15NA

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Pros:

  • Big cooling power
  • Energy-efficiency
  • Auto-restart
  • Light and compact for easy installation
  • Easy to install
  • Good customer service

Cons:

  • Relatively smaller cooling capacity
  • Doesn’t have as much noise insulation as some other models

Overall, the best 15000 BTU air conditioner we’ve come across so far is the Mitsubishi MZ-FH15NA. This unit offers a lot more than you’d expect in terms of power, functionality, and installation convenience. There’s a lot to love about it and it’s truly worth every single penny.

The unit is available in three different finishes: stainless steel, black, and white. Both the white and black options have a brushed finish, and they also have the same specs, so the color you pick is ultimately a matter of personal preference. It’s really nice that you can get several different finishes, as each complements a variety of different contemporary decors.

Frequently Asked Questions (FAQ)

What is the best 15000 BTU air conditioner?

The best 15000 BTU air conditioner is the LG 17-SEER 3.40 HP. It is not only a powerful air conditioner and cooling system, but also extremely efficient for its 15000 BTU. It has a variety of technological features to ensure that it properly cools the room instead of cooling the air like other systems. It also has a Home and away operation feature where the unit will run on a more economical setting when you are away from your home for extended periods of time.

The controls of the unit are located on the front of the unit for easy access. The remote control allows the unit to be controlled from a distance. The unit has four one-way flaps which allows for better climate control and less energy use. A louvered evaporation system also ensure that the unit is energy efficient.

What size room will a 15000 BTU air conditioner cool?

Generally, a 15000 BTU unit can maintain an area of 300 to 400 square feet. If you’re cooling a large room or a long hallway, it will help to have a few units to distribute the cool air evenly.

15000 BTU air conditioners are best suited for rooms around 250 square feet. If the room is smaller than that, buying a smaller unit makes more sense.

How many BTU is a good air conditioner?

  • In order to keep your whole home cool, it’s recommended that you invest in a AC unit that is 10,000 BTUs for every 300 square feet of area. It’s also recommended that you count on losing 20 degrees the minute that you account for the entryway or uninsulated windows. This is why the industry standard is to size your AC unit by multiplying the square footage of the room you’re cooling times 10,000 BTUs. For example, if your room is 800 square feet, you’ll want to invest in a unit with a cooling capacity of 8 x 10,000 or 80,000 BTUs.

What is the most reliable air conditioner brand?

While you may assume that some of the best brands are electronics manufacturers, like Panasonic and LG, you’re only partially right. That’s because the top brands are in fact different cooling specialists, like Lennox and Trane. These companies offer the most reliable cooling solutions for both homes and business, and homeowners are willing to pay a premium for their products.

Conclusion

This is a great buying guide to learn about the the best portable air conditioners so that you can make a better decision when you buy one for your home. Our research shows that a lot of people spend way too much on these little gems. You can find an affordable portable air conditioner that will do the job to cool your home, and save you a lot of money in the process.

These portable air conditioners are great for cooling down an extra room, your basement, or even your RV. This is a great review page to use if you are looking to buy a portable air conditioner.

Our Recommendation

NameCategoryProduct
Dometic Brisk II Rooftop Air ConditionerBest OverallDometic Brisk II Rooftop Air Conditioner
Emerson Quiet Kool EARC15RSE1 SMART 15,000 BTU 115V Window Air ConditionerBudget PickEmerson Quiet Kool EARC15RSE1 SMART 15,000 BTU 115V Window Air Conditioner
Mitsubishi MZ-FH15NAUpgrade PickMitsubishi MZ-FH15NA