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Mitsubishi MSZ-FS Deluxe Wall Mounted Indoor Unit with Brand Logo

Mitsubishi Indoor Air Handlers in Houston

At Nick’s Air Conditioning, we are finding that more and more of our customers are interested in alternatives to expensive, energy-devouring central HVAC systems. Whole-house HVAC systems are set to one temperature, usually read at a central point in the home, often leaving rooms at the far ends of the house too cool or too warm. 

From an energy cost standpoint, it’s expensive to heat and cool several unoccupied rooms but also damaging from a wear-and-tear perspective. Your whole-house HVAC system must work harder and cycle on and off more frequently to deal with hot and cold spots in the home. 

If you’ve started considering the transition from whole-house HVAC to Mitsubishi Electric mini split heat pumps, you’ll need to choose an indoor air handler. Wall-mounted units are available in multiple colors and simulated finishes to best match your décor. Ceiling-mounted cassettes are available for the homeowner that doesn’t want to devote the wall space required.

Mini-Split Heat Pumps are Perfect for Older Homes Without Ductwork!

It’s time to stop relying on noisy, poorly insulated window unit air conditioners, energy-wasting electric space heaters, and those dangerous kerosene and liquid propane burners. Mini split heat pumps are the perfect comfort system solution to provide safe control of the heating and cooling of every room of your home. 

Since mini-splits do not require ductwork to distribute treated air, they need no renovations to your home, installation is simple, and a single zone system can be installed in less than a day.

What Hardware Will I Need to Install in My House?

In addition to the outdoor compressor units, you’ll need a way to distribute the conditioned air throughout your home. Mitsubishi Electric offers two air handler configurations requiring no ductwork: a wall-mounted air handler or a flush-mounted ceiling cassette. 

Wall Mounted Air Handler

Mitsubishi Electric’s wall-mounted air handler units are the most versatile of the two indoor units and are mounted high on the wall –about a foot below the ceiling—and work well for smaller spaces, like bedrooms and home offices. Wall-mounted units are perfect for single-zone installations, single rooms, and multi-zone set-ups that allow a single outdoor unit to be connected to as many as eight indoor units without the need for additional outdoor hardware.

Mitsubishi Electric offers an extensive line of sleek, stylish, wall-mounted indoor air handler units at several price points without sacrificing the essential features of the more expensive models. All Mitsubishi Electric wall-mounted indoor handlers incorporate INVERTER® technology to ensure optimum comfort, are engineered to be as quiet as possible, and all of them are Energy Star Rated for high efficiency.

How is a Wall Mounted Air Handler Installed?

Wall-mounted air handlers must be installed on an outside-facing wall so that the refrigerant line, control cable, and other hardware can pass through a 3″ hole in that wall and reach the indoor unit. Wall-mount air handlers work best for comfort control in a single room, and you can connect as many as eight indoor units to a single outdoor unit.  

Selected Mitsubishi Electric Wall-Mounted Indoor Air Handlers – Features & Specifications

MSZ-FS Deluxe Wall Mounted Indoor Unit

MSZ-FS Deluxe Wall Mounted Indoor Unit

This model is perfect for use in any single- or multi-zone installation, with incredibly low noise (as quiet as 20 decibels—equal to a whisper) and high-efficiency operation while keeping performance a top priority. Nano-platinum filters eliminate undesirable odors, airborne particulates, and allergens. Swing Mode continuously adjusts the airflow direction from the top to the bottom of the room, and using the Mitsubishi Electric kumo® app, sets the speed of the swing, among tons of other features. This model is treated with a Dual-Barrier Coating that protects the components of the unit from oil, dust, and dirt build-up, reducing the need for maintenance and improving long-term efficacy. 

  • Capacities: 6,000 to 18,000 BTU/H
  • Sound: as low as 20 dB(A)
  • SEER: up to 33.1
  • HSPF: up to 13.5
  • COP: up to 4.68
  • ENERGY STAR®: Yes 

MSZ-EF Designer Wall Mounted Indoor Unit

MSZ-EF Designer Wall Mounted Indoor Unit

Sharing many of the features and specifications of the FS model above, the MSZ-EF indoor unit product line offers the EF model in one of three designer finishes. Choose from Glossy Black, Matte Silver, or Glossy White, whatever best suits your décor.  

  • Capacities: 9,000 to 18,000 BTU/H
  • Sound: as low as 21 dB(A)
  • Econo-Cool
  • Nano-Platinum Air Filtration
  • Swing Feature
  • Available in Glossy Black, Matte Silver, and Glossy White

MSZ-GL Wall Mounted Indoor Unit

MSZ-GL Wall Mounted Indoor Unit

A strong “meat and potatoes” unit that won’t break the bank and still provides exceptional comfort and robust energy efficiency. With six compact designs in a wide range of sizes, the GL model of wall-mounted units keeps rooms of nearly any size comfortable. 

The GL model includes the MSZ-GL heat pump, available as a single-zone or multi-zone unit, and the MSY-GL, a single-zone, cooling-only unit for climates where heating is unnecessary. At 19 decibels, the GL model has the lowest noise levels in the industry, a good SEER Rating of 24.6, and is Energy Star Rated.

  • Capacities: 6,000 to 24,000 BTU/H
  • Sound: as low as 19 dB(A)
  •  SEER: up to 24.6
  •  HSPF: up to 12.8
  •  COP: up to 4.44

Ceiling Mount Air Handlers

As the name implies, ceiling mount air handlers, or ceiling cassettes, are mounted in the ceiling. Encased within a 2-foot by 2-foot metal box containing the blower motor and system controls, the cassette can be easily installed between existing ceiling joists. Mitsubishi Electric ceiling cassettes are best suited for larger living spaces and in-home with an “open air” design. 

Selected Mitsubishi Electric Ceiling Mount Air Handlers – Features & Specifications 

MLZ-KP EZ FIT Ceiling Cassette

MLZ-KP EZ FIT Ceiling Cassette

Designed to present a flush-mount appearance when installed, this slim-bodied indoor air unit is perfect for remodels and retrofits. It offers many of the same features as its big brother cassette, the SLZ, like remote operation through the Mitsubishi kumo® app, improved air filtration for improved air quality, and swing technology for more thorough air circulation.   

  • Capacities: 6,000 to 18,000 BTU/H 
  • (6,000 model is multi-zone only)
  • Sound: as low as 21 dB(A)
  • SEER: up to 22.3
  •  HSPF: up to 13.3
  • COP: up to 4.1

SLZ Four-Way Ceiling Cassette

SLZ Four-Way Ceiling Cassette

An almost invisible unit that installs between the ceiling joists of your ceiling that can be used in either single- or multi-zone mini-split systems. The SLZ includes Mitsubishi Electric’s exclusive 3D i-See Sensor that continually scans the room for changes in temperature, humidity, and even the number of people that are in the room and adjusts comfort levels appropriately.  

Four separate air vanes are fully adjustable and can be customized to provide 72 different airflow patterns for each vane. Use the Indirect or Direct Airflow settings to adjust in real-time whether you want to aim airflow away from or toward room occupants.

  • Capacities: 9,000 to 18,000 BTU/H
  •  Sound: as low as 24 dB(A)
  • SEER: up to 22.4
  •  HSPF: up to 12.2
  • COP: up to 3.9
  •  ENERGY STAR®: most systems

Trust a Mitsubishi Electric Diamond Contractor, Like Nick’s AC!

Nick’s Air Conditioning is a Mitsubishi Diamond Contractor, meaning each of our licensed and experienced HVAC technicians is educated in Mitsubishi Electric Products. Give Nick’s Air Conditioning a call today to ask one of our techs about Mitsubishi Electric Products or to set up an appointment for one of our techs to visit your home and assess your home’s specific heating and cooling needs. 

Need help determining which air-handling appliance is right for your Houston home? Your Nick’s Air Conditioning technician can evaluate the areas you’re having trouble heating and cooling in and make recommendations as to which Mitsubishi Electric mini-split system will work best for your needs. 

*All Images’ Source: https://www.mitsubishicomfort.com/residential/products/wall-mounted-heating-and-cooling


Very good experience. My technician Anthony P. was very open with ideas for problem solving. On time service. Good communication system. Very professional work. All done very neatly and timely as proposed. Very satisfied and have shared my experience with others as Nick’s should be their go to company.


Antoine G. (2021)


I called Nick’s Plumbing to complete a natural gas line replace and repair job after being frustrated with the incompetence of the supposed “expert” plumbers in West University Place. Nick’s employees were knowledgeable, friendly, and professional. They finished a job in a day that the prior company could not complete in a week – and at a much lower cost. Many thanks!


David T. (2021)


Called on Saturday around 11 am and they were onsite within an hour to help get our domestic pumps up and running for 200+ apartment homes. Fantastic service, communication, and personnel. Pricing was very reasonable too.


Christopher Y. (2021)

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