Heating, cooling, and ventilation systems consume a lot of energy. Replacing a less efficient system with a more efficient model can yield energy and cost savings over the course of its use.

When purchasing a new HVAC system, consider purchasing the most efficient model that suits your needs. Visit the US EPA’s Energy Star products database for a list of the most efficient HVAC systems. In addition, consult the Energy Star Building Manual for HVAC Systems to learn more about HVAC efficiency upgrades. For those products that are not rated by Energy Star, consult the Federal Energy Management Program.

For a list of available incentives and rebates in California, visit the State Database of Renewables and Efficiency and the American Council for an Energy Efficient Economy’s Tax Incentives Assistance Project.

Replacing inefficient HVAC equipment with newer, more efficient equipment can yield operating cost reductions. According to the EPA, replacing components of a less efficient HVAC system typically cut energy costs about 20% annually.

When replacing HVAC equipment, keep the following in mind:

• Look for EPA’s Energy Star seal
• If Energy Star does not rate the particular appliance, purchase the most efficient model feasible
• Look for other energy saving features such as programmability and power-saving functions
• Many products continue to use energy, even when they’re turned off. Look for products that use as little energy as possible while in “off” mode.

Most energy consumed in the United States comes from coal, which contributes to smog, acid rain, and other negative health and ecological impacts. Coal burning also contributes significantly to man-made global warming. In addition, coal mining – especially surface mining and mountaintop removal – is destroying many of the world’s most biologically important ecosystems. Investing in better HVAC systems helps to minimize these negative impacts.

Investing in better HVAC systems also ensures a healthier environment for employees, fans, and players. Improved air circulation and filtration technology decreases the amount of particulates and biocontaminants (fungus, mold, viruses). More efficient HVAC systems are also more adept at filtering and sealing out nitrogen oxides, carbon monoxide, sulfur oxides, and other air pollutants.

Department of Energy’s Heating and Cooling Systems website
Santa-Monica Green Buildings Program HVAC systems webpage
EPA environmentally preferable purchasing
HVAC best practices
Energy Star Building Upgrade Financial Value Calculator
Energy Star Savings Calculators