Is Mitsubishi AC Better Than DELLA?

Mitsubishi and DELLA are both popular brands for ductless mini-split air conditioners, offering a range of technical specifications, installation options, and performance features. To help you determine which brand is better suited for your needs, let’s dive into a detailed comparison of the two.

Technical Specifications

SEER Rating

The Seasonal Energy Efficiency Ratio (SEER) is a measure of an air conditioner’s energy efficiency. A higher SEER rating indicates a more energy-efficient unit. Mitsubishi offers a wide range of SEER ratings, with some models reaching up to 26 SEER. In contrast, DELLA typically offers models with a SEER rating around 20.

Mitsubishi’s high-efficiency models, such as the Mitsubishi MZ-FH09NA and MZ-FH12NA, boast SEER ratings of 26 and 24.5, respectively. These units are designed to provide exceptional cooling performance while minimizing energy consumption and utility bills.

On the other hand, DELLA’s models, like the DELLA DLET12HP230V1A, have a SEER rating of around 20. While still efficient, these units may not be as energy-saving as Mitsubishi’s top-of-the-line offerings.

BTU Capacity

The British Thermal Unit (BTU) is a measure of an air conditioner’s cooling capacity. The higher the BTU rating, the more powerful the unit. Mitsubishi offers a wide range of BTU capacities, from 9,000 BTU to 48,000 BTU, catering to a variety of room sizes and cooling needs.

Mitsubishi’s lineup includes models like the MZ-FH09NA (9,000 BTU), MZ-FH12NA (12,000 BTU), and MZ-FH24NA (24,000 BTU), providing flexibility in choosing the right unit for your space.

In comparison, DELLA typically offers models with a BTU capacity around 12,000 BTU, such as the DELLA DLET12HP230V1A. While suitable for smaller rooms, DELLA’s options may not be as versatile as Mitsubishi’s when it comes to accommodating larger spaces.


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

DIY Installation

Mitsubishi offers a range of models designed for DIY installation, making them a great choice for homeowners who want to tackle the project themselves. These Mitsubishi units come with detailed instructions and all the necessary components, simplifying the installation process.

For example, the Mitsubishi MZ-FH09NA and MZ-FH12NA are both DIY-friendly models, with clear step-by-step guides and pre-charged refrigerant lines to streamline the installation.

In contrast, DELLA models typically require professional installation, as the process can be more complex and may involve specialized tools and expertise.

Professional Installation

Both Mitsubishi and DELLA offer models that require professional installation. Mitsubishi’s professional installation models are generally more expensive than their DIY counterparts, but they offer greater flexibility in terms of installation location and configuration.

Mitsubishi’s professional-grade units, such as the MZ-FH24NA, are designed to be installed by licensed HVAC technicians, ensuring a seamless and efficient installation process.

DELLA’s professional installation models, like the DELLA DLET12HP230V1A, are typically less expensive than Mitsubishi’s, but they may require more extensive installation work and coordination with a professional installer.


Cooling Capacity

Mitsubishi’s wide range of BTU capacities allows them to offer models suitable for a variety of room sizes and cooling needs. From small bedrooms to large living spaces, Mitsubishi has an option to meet your specific requirements.

In contrast, DELLA’s models are generally less powerful, with a typical BTU capacity around 12,000 BTU. While suitable for smaller rooms, DELLA’s options may not be as effective in cooling larger spaces.

Noise Level

Mitsubishi’s air conditioners are known for their quiet operation, making them a great choice for bedrooms and other noise-sensitive areas. The company’s advanced compressor technology and sound-dampening design contribute to their low noise levels.

DELLA’s models, while still relatively quiet, may not be as whisper-silent as Mitsubishi’s offerings. This can be an important consideration if you prioritize a peaceful indoor environment.

Energy Efficiency

Mitsubishi’s higher SEER ratings translate to superior energy efficiency compared to DELLA’s models. This can result in lower energy bills and a more environmentally friendly cooling solution.

Mitsubishi’s high-efficiency models, such as the MZ-FH09NA and MZ-FH12NA, are designed to maximize energy savings without compromising cooling performance.

DELLA’s models, while still energy-efficient, may not be as cutting-edge in terms of energy-saving technology as Mitsubishi’s top-tier offerings.


In summary, Mitsubishi offers a clear advantage over DELLA when it comes to technical specifications, installation flexibility, and overall performance. Mitsubishi’s wider range of SEER ratings, BTU capacities, and quieter operation make it a more versatile and energy-efficient choice for many homeowners.

However, DELLA’s models are typically more affordable, which may be a crucial factor for those on a tighter budget. Ultimately, the decision between Mitsubishi and DELLA will depend on your specific cooling needs, installation preferences, and financial considerations.

To make an informed decision, it’s recommended to consult with a licensed HVAC professional who can assess your unique requirements and provide personalized recommendations.

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