Duct-free systems by Carrier and Mitsubishi "Mr. Slim" products are perfect for situations where a normal split system is not feasable or where duct work doesn't exist or is too expensive to install.
Adantages to a "mini-split" system:
*Extremely high efficiency (up to 25seer)
*Costs less than traditional split systems to buy and operate
*No ductwork needed
*Ease of installation
*Wireless remote controller
*Very effective de-humidification