The Internet is a tremendous resource offering access to a wealth of information on virtually any product or service. While we recommend using the Internet for researching heating and air conditioning, we strongly urge you to be wary of sites offering such products for direct sale. These sites will require you to arrange for installation yourself and do not include any labor warranty coverage on your purchase.

Heating and air-conditioning systems, as well as indoor air quality equipment, are intended to be installed by qualified professionals only. In order to function safely and properly, they must be designed specifically for your home. These systems include electrical, gas, and refrigeration connections, which are regulated by a variety of laws, building codes, or guidelines. Failure to properly install a system can lead not only to performance issues, but also safety concerns or property damage. Warranty coverage may also be affected, due to improper installation. There are also governmental requirements that, if not met, can result in significant fines. Qualified contractors should have the appropriate licenses.