Ductless, mini-split-system heat pumps (mini splits) make good retrofit add-ons to houses with "non-ducted" heating systems, such as hydronic (hot water heat), radiant panels, and space heaters (wood, kerosene, propane). They can also be a good choice for room additions where extending or installing distribution ductwork is not feasible, and very efficient new homes that require only a small space conditioning system. Be sure to choose an ENERGY STAR® compliant unit and hire an installer familiar with the product and its installation.

Like standard air-source heat pumps, mini splits have two main components -- an outdoor compressor/condenser and an indoor air-handling unit. A conduit, which houses the power cable, refrigerant tubing, suction tubing, and a condensate drain, links the outdoor and indoor units.

Product Benefits

For ease of installation, energy efficiency and quiet performance, duct-free systems are the smart choice.

CUSTOMIZED COMFORT…FOR LESS Whether you’re creating a quiet, comfort controlled room, or simply want to heat or cool an area without expensive ductwork, LG’s duct-free systems set a new standard for efficiency, great looks and comfort.

Duct-free systems are much simpler and economical to install because they only have three basic parts: an outdoor condensing unit, an indoor unit, and the components that connect the two.

Duct-free systems are ideal for home or office additions to replace unsightly window units, and for renovations or retro-fits where it’s important to preserve the building’s original appearance.


  • Fast installation – With no costly ductwork, duct-free systems can be installed in places where conventional ducted systems simply can’t go.
  • Incredibly quiet – Indoor units operate at just 26 dB (the level of softly rustling leaves!).
  • Custom temperature control – It’s easy to precisely maintain the temperature in each room.
  • Attractive design – Choose from a wide variety of elegant looks to enhance any interior decor.
  • LG’s cutting-edge features:
  • Reduced energy costs. You can cut your cooling bill with LG’s energy-efficient technology. Look for our Inverter Air Conditioners featuring high-performance variable-speed compressors and our Multi Power System™ with exclusive dual compressor technology.
  • Cleaner, healthier air. Plasma air purifying technology ensures cleaner, fresher air.
  • Better air circulation. Computer controlled louvers and fan speeds minimize temperature differences in the room.
  • High-speed cooling. Powerful Jet Cool feature quickly cools warm rooms down to a comfortable temperature.
  • Built to last. The exclusive GoldFin™ Anti-Corrosion coating helps keep your system running like new for years.


  • The cost of installing mini splits can be higher than some systems, although lower operating costs and rebates or other financial incentives -- offered in some areas -- can help offset the initial expense.
  • The installer must correctly size each indoor unit and determine the best location for its installation. Oversized or incorrectly located air handlers can result in short cycling, which wastes energy and does not provide proper temperature or humidity control. Too large a system is more expensive to buy and operate.
  • Some people may not like the appearance of the indoor part of the system. While less obtrusive than a window room air conditioner, these units don’t have the built-in look of a central system. There must also be a place to drain condensate water near the outdoor unit.
  • Qualified installers and service people for mini splits may not be easy to find. Check with local heating and cooling contractors to find out how common these systems are in your area and who has experience installing and servicing them.

LG Electronics has policies and activities in place to support our global commitment to the environment. LG offers more than 800 ENERGY STAR® qualified products including appliances, home electronics and air conditioners. Underscoring its energy efficiency leadership in the US, LG has earned the Environmental Protection Agency’s 2015 ENERGY STAR® Partner of the Year. LG Electronics has achieved ENERGY STAR® Most Efficient designation for hundreds of models. As a company that thrives on innovation, LG is committed to both the Most Efficient program and the ENERGY STAR program in general.

The ENERGY STAR Most Efficient designation was designed to advance highly efficient products in the marketplace that are truly exceptional. We’re proud that 21 LG duct-free models have achieved the coveted ENERGY STAR Most Efficient 2015 designation. There’s no need to sacrifice energy efficiency for winning performance and style. For more information, visit ENERGY STAR Most Efficient website.

LG Electronics also received 2015 ENERGY STAR® Partner of the Year-Sustained Excellence Award - the program's highest distinction. LG earned our honors (the fourth consecutive year as an Energy Star Partner of the Year!) with continued leadership in manufacturing and promoting products with superior energy efficiency. For more information, visit our featured partner page on ENERGY STAR website.

PLUS, LG earned a 2015 ENERGY STAR® Partner of the Year-Climate Communications Award – EPA’s award to selected ENERGY STAR’s partners for raising customer awareness of the impact of climate change and helping emphasize how energy-efficient behaviors have a positive effect on the environment.