Mitsubishi Ductless Air Conditioner Fort Worth

MLZ Overview

Sleek and modern ceiling-mounted options include EZ FIT® recessed ceiling-cassettes that fit between standard joists, 4-way recessed ceiling cassettes, and ceiling-suspended units. The MLZ-Series One-Way Ceiling Cassette is one of the best air conditioners for bedrooms because of how quiet it is, along with many of the benefits you can read below.

Top Features


Exceptional cooling and heating performance


Maximum energy efficiency with higher SEER and HSPF ratings


Industry standard R410A refrigerant


Advanced filtration to help provide high air quality


Automatic cool/heat changeover


Easy installation


Convenient temperature, fan, and airflow control


Whisper-quiet operation

Model Comparison




COOL (BTU/H) 9,000 12,000 18,000
HEAT (BTU/H) 12,000 15,000 21,000
SEER 19.5 19.08 22.3
HSPF 13.3 12.1 12.4
26 26 26
FAN SPEEDS 5 Speed 5 Speed 5 Speed
TIMER WK, 24H, SL WK, 24H, SL WK, 24H, SL

Frequently Asked Questions

How long has the benchmark been in business?

Benchmark has been serving the Dallas Fort Worth metroplex for over 20 years.

What makes Benchmark the Mistubishi expert?

We are not just an AC company that works on Mitsubishi. We are only focused on Mitsubishi and have the expertise as well as manufacturing relationship that makes us the best, hands down. If you have a Mitsubishi A/C unit already or need a new one we highly recommend working with us.

Does Mitsubishi have a warranty?
The Mitsubishi warranty is for parts and compressors. It is extended to 12 years if installed and registered by a Mitsubishi Diamond Elite Contractor. As is standard practice in the HVAC industry, Mitsubishi does not pay labor under any circumstance. Benchmark includes 1-year labor warranty coverage on everything we do.
How long does it take to install a new unit?

Each project is custom. But a standard install takes 1 to 2 days. There are many factors to take into account regarding install and we take the time to look at all issues to ensure a proper install.

How does Mr. Slim work?

​Mr. Slim employs the same mechanical components as any basic air-conditioning system whose interactions cause the process of evaporation to occur. Mr. Slim is a split-ductless design, which simply means the indoor unit is separated from the outdoor unit and is connected by a gas and a liquid refrigerant line. The outdoor unit is considered the hot-side during the air-conditioning process. The cold-side unit is located indoors. In the heating process, the compressor reverses this operation, and the heat energy is evaporated in the outdoor unit. Then the indoor unit collects this heat energy while a fan blows air over the indoor coil and distributes the warm air into the room.

Why should I consider buying Mr. Slim?

​Mitsubishi Electric is the industry leader in ductless air conditioning technology. Our innovations have defined cutting edge technology for years. Compare and you’ll see no one surpasses Mr. Slim’s​ performance for quiet, easy-to-use energy-efficient operation. And since our ductless technology carries the Mitsubishi Electric name, you know every unit is built to last. The bottom line is that Mr. Slim delivers the ultimate control of comfort for your home or office. It’s true today and will be comfortably self-evident for years to come.

How quiet is Mr. Slim?
​Mr. Slim is designed to be quieter and more efficient than old window units, so you’ll sleep easier with less worry about operating costs. The unit’s fan is designed to deliver air quietly with only a gentle whoosh (That’s why Mr. Slim is the first choice for thousands of churches, schools, and libraries).

Customer Testimonials

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Jack and his team do outstanding work!! We are really enjoying our new mini split AC system for our garage. The whole experience was flawless. I had excellent communication with Jack from the start, and I really appreciated the upfront and very competitive pricing. On install day, he and his team were prompt and very professional. All of the wiring work and drainage setup was top notch. Jack has an eye for the details and made sure his guys kept everything tidy. If you are looking for an AC system, Benchmark Service really delivers a superb experience!! Can’t recommend them enough. Thank you!!

Edward R.

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Jack and his son William installed 5 Mitsubishi ductless wall units in our home last year, and we couldn’t be happier with the outcome! Not only did they do an amazing job of install, with tons of attention to detail, but the respect they showed for our home and the quality of work is beyond compare. Just this past week we had them back out to install an exhaust fan in our master bath, and once again they proved they are the best in town at what they do; no wonder they are currently the only Mitsubishi Diamond contractor in Dallas. We highly recommend Jack and his crew!

B. Drake

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Jack and his crew did a fantastic job replacing the A/C units and gas furnaces at my townhome with all-electric Mitsubishi air-source heat pumps. We used all of the existing ductwork and love the new equipment – super-efficient and improved comfort. I would highly recommend Benchmark Service if you’re looking to simplify and go all-electric for heating/cooling, plus want a responsive business owner and team.

Tyler P.

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Jack is great to work with. Jack came out on a Saturday morning (how many contractors do that?) to give me an estimate. Within a half-hour he had explained everything to me. He gave full information and answered all my questions. We set a time for the next Tuesday

Jack and crew showed up this morning when he said he would be here. He and his crew of 3 young men got to work right away. It took about 3 hours to install my new ductless unit. They were very neat and tidy. They cleaned up after they were done. Once finished, Jack explained how everything worked and showed me how to use the remote.

I am very happy with my new ductless unit! Jack does great work and I highly recommend Benchmark Service. Thanks Jack!

Don D.

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Jack and his crew came out and installed a Mitsubishi wall unit for our master bedroom. They were very professional and treated my home with so much care. Couldn’t even tell they were here until you looked at the new unit.

What a great company and crew. I will be recommending them to all my friends, family and anyone who needs a heating and cooling expert.

Mark B.

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Benchmark Service is the top Mitsubishi Ductless Contractor in Texas for residential and commercial.