You probably think of an air conditioner as something that puts cool air in your homes, but what it really does is remove heat from your home. So an understanding of how heat gets in your home is the key to choosing the most cost-effective ways to cut summer utility bills while staying cool and comfortable.

The single most important thing you can do to keep your air conditioning and heating system working efficiently is to make sure the air filter is matched to the unit and is clean. This publication includes information on air filters and the benefits of keeping your filters clean.

This publication explains the importance of a complete air-conditioning tuneup, including information on restored capacity, lower energy usage, longer compressor life and increased energy efficiency.