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Last updated on Mar 03, 2020

MRCOOL Air Conditioner Review

High-quality DIY ductless split-air conditioners built with innovation and technology in mind ​


  • Wide product range
  • DIY install options
  • Available at department stores
Similar Products

How We Reviewed MRCOOL Air Conditioners

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6 models compared

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7 features evaluated

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3 ratings analyzed

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MRCOOL is known for offering well-built, ductless mini-split air conditioners. The company manufactures a wide range of products that are designed for different home environments and cooling areas. In terms of price, MRCOOL’s air conditioners range from on the lower side to expensive high-end models that cost upwards of $5,000.

If you’re looking for an air conditioner with innovation in mind, MRCOOL will be a good option for you. Most of its units can be controlled through a smartphone app, Google Assistant or Amazon Alexa. Additionally, some units come with an alarm for leakage protection, have an auto-restart function after a power outage and are corrosion resistant.

Another selling point of MRCOOL is its DIY air conditioner options that are made specifically for easy self-install. With the 2nd Generation Enhanced DIY or the 3rd Generation Energy Star DIY, homeowners can install the wall unit themselves without paying for professional HVAC installation.

When it comes to efficiency, MRCOOL’s air conditioners are competitive with similar brands. With a SEER rating range of 16 to 25, all of the company’s units are above the average 13 SEER for air conditioners. SEER stands for Seasonal Energy Efficiency Ratio and it represents the heat removed from an area during the cooling process. Many units are also ENERGY Star certified, which means it meets environmental energy standards.

  • Wide product range
  • DIY install options
  • Available at department stores
  • Can be expensive
  • Average warranty
  • While the initial costs to purchase an air conditioning unit can be pricey, the higher SEER rating a product has, the more you’ll save on energy costs to operate the air conditioner. With higher SEER ratings tending to also translate into high prices, consumers must consider whether a high upfront cost will be offset by the energy savings later.

    MRCOOL Overview

    • Efficiency (SEER rating): 16-25
    • Model options: 6
    • Warranty: 10 years if registered, 5 years if not
    • BTUs: 9,000 – 36,000

    MRCOOL Mini Split Air Conditioner Prices by Model

    SEER Rating
    Model Cost
    Cooling Area
    3rd Generation Energy Star DIY
    $1,181- $1,399
    550-2,500 (sq. ft.
    2nd Generation Enhanced DIY
    $1,368- $2,467
    550-2,500 (sq. ft.
    3rd Generation Advantage
    400-1,500 (sq. ft.)
    Olympus E Star
    $1,114- $1,650
    400-1,500 (sq. ft.)
    Olympus Hyper Heat
    $1,297- $1,846
    400-1,500 (sq. ft.)
    Olympus Multi-Zone
    $2,298- $5,483
    400-1,500 (sq. ft.)

    *All information accurate as of Jan. 8, 2020. Pricing information from Home Depot, Lowe’s, and HVACdirect.com. Cooling area calculated using EnergyStar.gov.

    Energy efficiency – SEER rating

    When it comes to efficiency, high SEER air conditioners will perform better than low SEER units. In MRCOOL’s case, all of its products have a good SEER rating or better, meaning that the units are extremely efficient. MRCOOL’s lowest SEER air conditioner is the 2nd Generation Enhanced DIY, which has a SEER rating between 16 to 17.5 depending on size. That’s considered to be above average for efficiency and is a good option for the price point.

    Warranty options

    Despite the high cost of some of MRCOOL’s products, its warranty is nothing special. The company promises to replace all parts for free up to 10 years for units that are registered and up to five years for units that are unregistered. Although that’s considered to be a good deal for the lower-cost units, you’ll probably want a longer warranty if you plan to purchase a unit that’s a few thousand dollars. Keep in mind that some air conditioner companies offer lifetime guarantee warranties, which might help you justify paying a higher cost for the unit up front.

    Installation and maintenance

    As we mentioned earlier, MRCOOL has two air conditioners that are designed specifically for DIY installation — the 2nd Generation Enhanced DIY and the 3rd Generation Energy Star DIY. Both units come with a manual for easy self-install, as well as a video that shows the exact steps for installation.

    If you decide to purchase a larger or outdoor unit, you’ll need to have it installed by an HVAC professional. Most retailers, including Home Depot, Lowe’s, or a specialty dealer, will offer some type of installation service for an added cost. You can also work with an independent HVAC specialist who might offer you a lower price.

    When it comes to maintenance, homeowners will be able to do a majority of work that needs to be done. MRCOOL provides an owners manual with each purchase that includes information about cleaning the unit, replacing the air filter, cleaning the air filter, and pre-season inspection tips. If you suspect that one of the internal components is damaged or needs to be repaired, it’s best to have an HVAC professional take a look.

    Compare to Other Air Conditioner Brands

    Compare to Other Air Conditioner Brands

    SEER rating
    18,000- 0,000
    5-10 years
    10 years-lifetime
    10 years

    MRCOOL vs. Amana Air Conditioners

    When comparing MRCOOL to Amana, MRCOOL’s air conditioners are slightly more energy efficient. MRCOOL’s products have SEER ratings between 16 to 25, whereas Amana’s units are only rated between 14 to 24.5. In terms of price, MRCOOL has a wider cost range, which is ideal for people who are looking to save money.

    One of Amana’s biggest strengths is its lifetime parts warranty. That’s one of the best deals on the market, especially compared to MRCOOL’s standard 10-year warranty. Additionally, Amana is going to be a better option for customers looking to cool a large area, with up to 60,000 BTUs.

    MRCOOL vs. Lennox Air Conditioners

    MRCOOL and Lennox are similar in many ways. Both companies’ prices are comparable, although MRCOOL’s baseline units are slightly less expensive than Lennox’s. Moreover, each offers standard 10-year warranties. When it comes to efficiency, though, MRCOOL’s air conditioners are rated between 16 to 25 SEER, whereas Lennox’s air conditioners are ranked between 13 to 26. MRCOOL’s air conditioners are technically more energy efficient, but Lennox’s models are still above average in terms of efficiency.

    About the Authors

    The Reviews.com staff is dedicated to providing you with all the deep-dive details. Our writers, researchers, and editors came together from Charlotte, Seattle, San Juan, Fort Worth, Fort Lauderdale, San Diego, and Chicago to put this review together.