Make a room-first decision
Start with the space you need to cool, how often it overheats and whether permanent installation is possible. Cooling capacity should be matched to room volume and heat gains rather than selected only by headline price.
Portable air conditionersFlexible cooling without permanent installation.Mini-split air conditionersEfficient, quiet cooling installed by a professional.Heat pumpsYear-round heating and cooling from one system.
Check capacity and ongoing cost
Use the BTU calculator for an indicative capacity range, then compare rated electrical input using your own electricity rate. A portable air conditioner also needs a suitable exhaust route; installed refrigerant work requires an appropriately qualified professional.