A split system is an outdoor unit combined with an indoor unit. A split system will have a condensor outside to raise the pressure of the refrigerant and move it along the refrigeration lines to the an air handler, which is typically located in an attic, closet, or crawl space under the house. Once the air is conditioned it is passed through ductwork and blown out of air vents located on the ceiling or floor.

All self contained air conditioning unit, all components needed to make a complete system in one box. This unit will heat by adding an electric heat strip. In a packaged system, ductwork is generally ran from the outside unit into the crawl space under a house. Alternatively, the ductwork may be ran up the side of the house to an attic to provide climate control upstairs.

Ductless, mini-split-system heat pumps (mini splits) make good retrofit add-ons to houses with "non-ducted" heating systems, such as hydronic (hot water heat), radiant panels, and space heaters (wood, kerosene, propane). They can also be a good choice for room additions, where extending or installing distribution ductwork is not feasible.

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A portable air conditioner that you can roll from room to room might appeal to you if your window space is limited or if you live in a building where regular room air conditioners are prohibited. Applications: Sun Room, Enclosure, Remote Room, Nursing Room, Lobby, Restaurant, Apartment, Hotel, Resort, Mobile Office, Mobile Home, Garage, Corridor, Entrance