Others can support central air but can t be cooled as effectively with it as they might with an alternative system.
Alternate air conditioning systems.
Unlike a central air conditioning unit a portable air conditioner allows you to cool a specific room rather than waste energy and money cooling your entire home including all the unused rooms.
Even if you have an hvac system portable air conditioners are a great way to keep cool and save money at the same time.
It saves money and energy.
Some homes especially older homes built before the advent of air conditioning lack the ability to support the ducts that make central air conditioning possible.
Replacing a furnace or air conditioning system not doing it for you.
Had about enough of the system maintenance and have cleaned coils changed out air filters and sealed ducts quite enough for one lifetime.
One of the most popular alternatives to central air is a window unit or portable air conditioner that cools a single room.
In dry climates you can use a swamp cooler which cools your home with evaporating water.
The simplest way to do this is to use a fan to pull in cold air through the windows at night.
Although a ductless mini split is still an air conditioner one can still include it as an alternative to traditional ducted air conditioners for 2 reasons.
In fact there are a lot of alternatives.
According to energy gov ducts losses can account for more than 30 of energy consumption for space conditioning.