Even if you have an hvac system portable air conditioners are a great way to keep cool and save money at the same time.
Alternate air conditioning systems.
Solar and geothermal heating seem too pricey.
The simplest way to do this is to use a fan to pull in cold air through the windows at night.
In fact there are a lot of alternatives.
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.
It saves money and energy.
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.
Had about enough of the system maintenance and have cleaned coils changed out air filters and sealed ducts quite enough for one lifetime.
Whether installed in a window or made to sit on the floor these compact air conditioners need to be able to release exhaust outside either by being propped in the window or with an exhaust hose positioned in an opening in the window.
In dry climates you can use a swamp cooler which cools your home with evaporating water.
Others can support central air but can t be cooled as effectively with it as they might with an alternative system.
Replacing a furnace or air conditioning system not doing it for you.
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.