Some people do not realize that no matter how advanced heating & cooling technology is, there is constantly going to be something that is not perfect about a heating & air conditioner unit, however even the most brand modern & up-to-date central heating & air conditioner unit will not be perfect.
Especially if you live in an area that has either super overheated or super chilly times of the year, during those times of the year you will find that most central heating & air conditioner unit units do not perform to their fullest.
This is because they can not handle the severe heat or the severe chilly they are up against trying to fight off. Like I mentioned, even the most brand new, up-to-date, unquestionably luxurious, & all so severely powerful central heating & air conditioner units can not combat super severe chilly or super severe heat. This is where in order to have indoor comfort during these times you may consider getting a portable space heater for the winter season & then getting a portable air conditioner unit for the summer; Because if you run the portable space heater or the portable air conditioner unit at the much needed times along with your central heating & air conditioner unit you will find that it will even out the uneven & odd temperatures in your house & make the indoor comfort that you wish to have. This is what I do, and it all brings it back to the main point of saying, that no central heating & air conditioner unit is perfect!