A. PROS:

• A split unit eliminates the work of duct, meaning there are no thermal or air losses that forced-air systems often have. Duct losses can account for more than 30% of energy consumption.
• It is much less expensive than a central air conditioner to install and operate. Your energy bill may be reduced by as much as 40%.
• Ductless mini splits gives you direct control of the temperature of individual rooms. Only heat or cool the rooms that you occupy. The flexibility of the solution allows each person to select the temperature of their choice.
• Since the compressor is outside, they tend to be very quiet (depending on the model).
• Instead of a large exhaust coming from your window or wall, it’s a simple 3 inch hole connecting the mini split’s indoor unit to the outdoor unit.
• It’s a safe air conditioning system to choose if compared to a window air conditioner or wall air conditioner, the connecting hole is far too small to allow break-ins into a home.

CONS:

• A ductless mini split requires an specialised technician to properly install the units.