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Top-Rated Ductless Systems

Mitsubishi Electric makes some of the top-rated ductless systems available on the market today. Finding the perfect combination of indoor unit, outdoor unit and controls/thermostat is the key to ensuring indoor comfort and the greatest convenience possible.

Ductless systems are convenient and efficient choices for residential and commercial applications alike. The indoor and outdoor units are connected through a small conduit running through a 3-inch hole in the wall. Through this conduit run power cables, the condensate drain line and refrigerant tubes. Heated or cooled air is delivered directly from the air handler inside the indoor unit, so no ductwork is necessary for comfortable heating and cooling.

Here’s a brief look at your options so you can make an informed decision when choosing from among the top-rated ductless systems available today.

Indoor Units

Mitsubishi Electric offers six different indoor models with varying efficiency and capacity levels. The indoor unit primarily consists of an evaporating coil to change the temperature of air blowing over it along with an air handler to distribute air into the space.

In addition to the basic features of all ductless systems, Mitsubishi Electric units offer additional benefits, such as self-diagnostics, adjustable fan speed and the option to work with wired or wireless controllers.

There are three primary types of indoor units:

  • Wall-mounted units: These are the most common indoor units. They are fastened high on the wall near the ceiling. Most resemble rectangular radiator units, while others appear to be small fans.
  • Ceiling-mounted units: This application is most common in rooms with recessed ceilings. Once installed, the unit is nearly flush with the ceiling’s surface for an unobtrusive appearance.
  • Floor-mounted units: These are usually larger than the other indoor unit types, resembling a large indoor radiator.

Outdoor Units

The outdoor unit in a ductless system consists of major heating and air conditioning components, such as the compressor, condenser and power system. The unit is most often installed near an external wall of your home behind where the indoor unit is located. To add flexibility, though, you can install the outdoor unit up to 50 feet away so it doesn’t spoil your home’s curb appeal.

Ductless systems are particularly energy efficient compared to traditional HVAC systems because:

  • The outdoor unit doesn’t require ductwork to deliver heated and cooled air. Ductwork is the enemy of energy efficiency. In fact, it can waste up to 40 percent of the air passing through it due to loose connections, broken seals and damaged ducts. With no ductwork connecting the outdoor unit and indoor air handler, the system performs at the advertised efficiency.
  • The system is likely Energy Star-certified. The minimum SEER rating permitted for central air conditioners today is 13 SEER. Most Mitsubishi Electric top-rated ductless systems are rated 17.5 SEER or higher, with two models rated up to 26 SEER.
  • Ductless systems allow for easy zoning. If you want to heat or cool more than one room in your home with a ductless solution, zoning is right at your fingertips. Simply select a multi-zone-capable outdoor unit and pair it with two or more indoor units. Control each indoor unit independently to heat and cool your home exactly the way you need to, improving comfort and efficiency all at once.

Controls and Thermostats

Mitsubishi Electric offers two types of controls:

  • Wired wall-mounted thermostat: This resembles a thermostat that traditional HVAC systems use. It is directly connected to the indoor unit and offers several features for your convenience, such as multiple languages, backlit display, programmable options and the ability to control up to 16 indoor units at once.
  • Hand-held wireless remote: A wireless system makes it easy to change temperature settings from anywhere in your home that the wireless signal can reach. This is an excellent option if you want to change the temperature without walking up to a thermostat mounted to the wall. Keep in mind that periodic battery replacement is required.

With this wide variety of options, it’s clear that Mitsubishi Electric top-rated ductless systems provide benefits of comfort and efficiency in many potential applications. Ductless systems work well in:

  • Home additions where extending ductwork isn’t feasible
  • Individual rooms that need extra heating or cooling
  • Older homes without ductwork
  • Commercial applications, such as offices, retail outlets, churches, classrooms and child-care facilities

To learn more about the top-rated ductless systems available today, please contact one of the Mitsubishi Electric Cooling and Heating Contractors on

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