What Is a Ductless Heat Pump?

Ductless heat pump compressors are placed on the outside of the home.

A ductless heat pump is a dual heating and cooling system that functions without the use of ducts. Japan first developed the ductless heat pump in the 1970s. Since then, much of Europe, Asia and commercial enterprises in the United States have used them.

Components

Ductless heat pumps have three or more components: an outdoor compressor unit, a refrigerant line and "heads." Each "head," or air-handling unit, is fitted high on a wall in each zone to be separately heated and cooled. The refrigerant line is run to the outside compressor from the back of each "head."

Uses

Ductless heat pumps are used in rooms where heat and cooling systems are not present, or as a supplement system to traditional units. A new room addition or three-season porches, without duct work, are example applications.

Benefits

Installation is uncomplicated and much quicker than traditional heating systems requiring duct work. Ductless heat pumps also provide air-conditioning and can save up to 50 percent on your home energy bill. They are also a safer alternative to portable heaters and consume less electricity.

References

• Going Ductless: Frequently Asked Questions
• Seattle Government: Conserve
• Going Ductless: Introduction