What’s more, heating and cooling systems in the United States together emit over a half billion tons of carbon dioxide into the atmosphere each year, adding to global warming. They also generate about 24% of the nation’s sulfur dioxide and 12% of the nitrogen oxides, the chief ingredients in acid rain.
No matter what kind of hvac systems homeowners have, they can save money and increase comfort by properly maintaining and upgrading their equipment. But it should be emphasized that installing an energy-efficient furnace alone, for instance, will not have as great an impact on energy bills as taking a whole-house approach.
By combining proper equipment maintenance and upgrades with appropriate insulation, weatherization, and thermostat settings, homeowners can cut their energy bills, and their pollution output, in half.
The following are some energy-saving heating and cooling tips from the DOE:
If the homeowner is in doubt about how to do this, s/he needs to give you a call.
During the cooling season, keep the window coverings closed during the day to prevent solar gain.
For example, if the house is heated with a heat pump, do not close the vents — closing the vents could harm the heat pump.
You need to help the homeowner compare energy usage. Tell them to look for a high Annual Fuel Utilization Efficiency (AFUE) rating and Seasonal Energy Efficiency Ratio (SEER). The national minimums are 78% AFUE and 10 SEER.