Is Mitsubishi AC Better Than LG?

Mitsubishi and LG are two of the leading manufacturers of ductless heat pumps, also known as mini-split systems. When it comes to choosing between the two, Mitsubishi is generally considered the superior option, particularly in terms of efficiency, noise levels, durability, and air quality. In this comprehensive guide, we’ll dive deep into the technical details and expert-level insights to help you understand why Mitsubishi is the better choice for your home or business.

Efficiency and Cost-Effectiveness

One of the key factors that sets Mitsubishi apart is its superior efficiency. Mitsubishi ductless heat pumps offer the best ratio of efficiency to cost, outperforming LG and other competitors like Daikin and Fujitsu. This means that while LG may have a lower upfront price, the higher utility bills associated with its lower efficiency will end up costing you more in the long run.

Mitsubishi’s ductless heat pumps are designed with advanced compressor technology and refrigerant management systems that maximize energy efficiency. Their systems can achieve Seasonal Energy Efficiency Ratios (SEER) of up to 33.1, which is significantly higher than the industry average. This translates to substantial savings on your energy bills, making Mitsubishi the more cost-effective choice in the long term.

To further illustrate the efficiency difference, let’s consider a real-world example. A Mitsubishi ductless heat pump with a SEER of 33.1 would consume approximately 30% less energy compared to an LG system with a SEER of 24. Over the course of a year, this could result in hundreds of dollars in savings on your utility bills, depending on your local energy rates and usage patterns.

Noise Levels and Comfort

is mitsubishi AC better  than LGImage source: Mitsubishi ac By Dinkun Chen

Another area where Mitsubishi excels is in noise levels. Their ductless heat pumps are renowned for their whisper-quiet operation, making them an excellent choice for homeowners or businesses that prioritize a peaceful and comfortable environment.

Mitsubishi’s advanced compressor and fan designs, along with strategic sound-dampening materials, result in noise levels that are significantly lower than those of their competitors. In fact, a Mitsubishi ductless heat pump can operate at just 19 decibels (dB), which is barely audible and comparable to the sound of a soft whisper.

In contrast, a Daikin ductless heat pump, which is often considered one of the quieter options, can produce noise levels that are about 30% higher than Mitsubishi’s. This difference in noise levels is readily noticeable and can be a significant factor for those who are sensitive to mechanical sounds or prefer a more serene indoor environment.

Durability and Warranty

Mitsubishi and Daikin are widely recognized as the industry leaders when it comes to the durability and reliability of their ductless heat pumps. Both manufacturers offer exceptional warranties that reflect the quality and longevity of their products.

Mitsubishi and Daikin provide a 12-year warranty on the compressor and parts, which is the best in the market. This extended warranty coverage gives homeowners and business owners peace of mind, knowing that their investment is protected for over a decade.

To ensure that you receive the full Mitsubishi warranty, it’s important to have your system installed by a Mitsubishi Diamond Contractor®. These certified professionals have undergone extensive training and adhere to Mitsubishi’s strict installation guidelines. Additionally, you’ll need to register your new Mitsubishi ductless heat pump within 90 days of installation to activate the full warranty coverage.

Air Quality and Filtration

Maintaining good indoor air quality is crucial for health and comfort, and Mitsubishi ductless heat pumps are designed with advanced filtration systems to address this concern.

Mitsubishi’s ductless heat pumps come equipped with a catechin pre-filter, which is a natural antiviral and antibacterial agent. This filter helps to capture and neutralize airborne contaminants, such as fine particulates, bacteria, and viruses. Additionally, Mitsubishi’s systems feature a blue enzyme filter that actively stops the growth of active bacteria and viruses, further enhancing the air quality in your indoor space.

These advanced filtration features make Mitsubishi ductless heat pumps a better choice for homeowners and businesses located in areas prone to wildfire smoke, dust, or other airborne pollutants that can negatively impact indoor air quality and respiratory health.


In conclusion, while LG may offer a lower upfront price for their ductless heat pumps, Mitsubishi is the superior choice when it comes to long-term efficiency, noise levels, durability, and air quality. Mitsubishi’s advanced technology, coupled with its industry-leading warranties and installation requirements, make it the clear winner for those seeking a high-performance, reliable, and energy-efficient ductless heating and cooling solution.

By choosing a Mitsubishi ductless heat pump, you can enjoy significant energy savings, a peaceful indoor environment, and the peace of mind that comes with a well-protected investment. Whether you’re a homeowner, business owner, or facility manager, Mitsubishi’s ductless heat pumps are a smart and reliable choice that will serve you well for years to come.