When buying a new central air conditioning system, make sure to select a model with a manufacturer's warranty. This will protect you against expensive repairs. The warranty should cover equipment and parts. You can also choose an extended warranty, which can help you pay less for repairs. These plans also offer labor warranties and discounts for routine maintenance.

The main part of a central air conditioning system is the central air conditioning system  The filter removes airborne particles and may even remove microscopic pollutants. The filtered air is then routed through the ductwork to the individual rooms. The system is powered by a compressor-bearing unit located outside the home. As a result, there is less noise indoors than with a free-standing air-conditioning unit.

When selecting a central AC unit, remember that the output is measured in British thermal units (BTUs). One BTU can cool a square foot. If you have a tall ceiling, multiply this by 1.25. Then, divide the square footage by twelve thousand to determine how much tonnage you need.

Another way to save money on central air conditioning is to add a multi-zone system. This option will help you avoid uneven heat distribution. For example, a room with more sunlight might retain extra heat than another. A zone system allows you to cool the hotter area more often and avoid arctic blasts in other rooms.