 | Medium: $2,000-$5,000 |
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 | High: $5,000-$7,000 |
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| Mini-split or "ductless" air conditioners are quieter and less visible than window units, and can be less expensive than adding central air to a house that lacks ducts and the space needed to install ducts. | | |
| Typical costs: | - Expect to pay $2,000 -$5,000 to install a complete ductless mini-split air conditioning system in a 800-1,000-square foot home, or $5,000 -$7,000 for a 2,000-square-foot house. Ductless systems are generally twice the cost of window systems and about 30 percent more than installing central air with existing ducts, but can be less expensive than adding central air and ductwork. Some units provide both heat and air conditioning.
What should be included: | - A ductless unit is a "split" system just like central air, only smaller and more flexible. The compressor sits outdoors and is connected by a pair of refrigerated lines to one or more air handlers inside the house. The hole in the wall for the lines varies, but is usually about 3 inches in diameter. ThisOldHouse.com provides a brief overview and the US Department of Energy lists advantages and disadvantages.
- Designed to blend into the decor, the indoor units are usually about 7 inches deep. They're smaller than window units, but generally not as unobtrusive as central air vents. These air handlers can be suspended from or mounted flush to a ceiling, hung on a wall or installed as a floor-standing unit.
- Like all air conditioning, ductless systems are rated by a SEER (Seasonal Energy Efficiency Ratio) and capacity is gauged by BTUs (British Thermal Units) or tons. A HVAC (heating, ventilation and air conditioning) contractor will calculate how many BTUs are needed to cool a specific area; run lines for the coolant, electricity and drainage; and charge the unit with the correct amount of coolants.
Shopping for a ductless air conditioner: | |
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Article updated June 2007 |
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What People Are Paying - Recent Comments |
| Mitsubishi 12000 BTU |
| Amount: $2,300.00 |
| Posted by: a user in Framingham, MA. | Posted: May 7th, 2009 05:05AM |
| Contractor: | BTUs: 12000 |
Paying $4000 for a 12000 BTU heat pump mini split installed for a sun filled family room. The unit meets the standards for the 30% rebate plus $500 from Nstar rebate. Final cost $2300 |
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| mitsubishi ductless system |
| Amount: $10,000.00 |
| Posted by: crazycanuck in warwick, RI. | Posted: July 10th, 2012 06:07PM |
| Contractor: MPG mechanical | BTUs: 1x24,000, 2x 9000 |
I find this to be a high quote for a/c, heat pump, and dehumidifier. All I want is a/c can I get the above systems cheaper. |
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| Comfort aire mini split system coolant recharge |
| Amount: $1,200.00 |
| Posted by: ArtherSaratoga in Littleton, CO. | Posted: July 24th, 2012 11:07PM |
| Contractor: Golden West | BTUs: 24,000 |
The inside unit would frost over occasionally.
The system needed to have the charge installed by weight, as this was not done when it was new. |
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