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How ductless systems work

Ductless systems, also known as ductless heat pumps or ductless mini-splits, are highly efficient easily installed primary heating and cooling systems for electrically heated homes. They're safe, durable and quiet, and they heat rooms evenly at a fraction of the cost of baseboard, wall and ceiling heat or electric furnaces.

Ductless systems utilize heat pump technology to distribute warm or cool air more quietly and efficiently than traditional electric heaters. With three main components (outdoor unit, indoor wall-mounted unit, remote control), ductless heat pumps are easily installed by a professional in less than a day and can reduce your electric heating costs by 25% -50% while keeping you comfortable all year long.

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Ductless heating and cooling systems are reversible, two-way heat pump that simply take heat energy from on place and move it to another by compressing and expanding refrigerant. There are three main components:

1. Outdoor unit: connects to the indoor unit by a small bundle of cables, including a refrigerant line. The unit is placed outside of the home on ground level.

2. Indoor unit: mounted on a centrally located wall. One indoor head is enough to heat and cool an average-sized Northwest home.

3. Remote control: allows occupants to adjust the settings for maximum efficiency, comfort and control.

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Installation is quick and easy. There is no need for expensive, invasive and often leaky duct work: A small 3-inch hold hidden behind the indoor unit is all that's needed to connect it to the outdoor unit. Ductless systems do best when they are installed in a central location in your home. They work with your existing heating system to ensure that bedrooms and bathrooms are the perfect temperature.

Other types of heat pump include ducted heat pumps, ducted mini-splits and central air handler mini-splits. Talk to your electric utility or contractor to learn more about which type of heat pump would be best for your home.

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