Heating and Air Conditioning

Heating and air conditioning (HVAC) represent 38% of monthly energy expenses. Here are some low-cost and no-cost steps that you can take to get the best efficiencies:

Thermostat settings:

In door heating thermostat set at a room temperature and money

If you raise your indoor temperature by 2-3 degrees in the summer or lower it the same amount in the winter, you could save 10-15% on your annual costs.

HVAC filters:

Your heating and air filters should be checked monthly and dirty filters cleaned or replaced.

AC compressor:


The outdoor portion of your air conditioner should be kept clear of debris that can reduce the flow of air around the unit. It should also be shaded from direct sun, and the inside and outside coils cleaned annually.


Your heating and air system has been designed for maximum efficiency. The duct system has been tested to limit leakage and your house was similarly tested to minimize air leaks. Proper airflow through your home is very important, so interior doors to any room that has a heating and air vent should never remain closed for extended periods of time.

Acknowledgment: “The information, data, or work presented herein was funded in part by the Office of Energy Efficiency and Renewable Energy (EERE), U.S. Department of Energy, under Award Number DE-EE0006978, through the Energy Division of the Alabama Department of Economic and Community Affairs.”
Disclaimer: “The information, data, or work presented herein was funded in part by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer or otherwise, does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof. The views and opinions of authors expressed herein do not necessarily state or reflect those of the United States Government or any agency thereof.”