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The biggest step toward lower energy bills is replacing your old heating and cooling system with a high-efficiency model. Modern furnaces, air conditioners, and heat pumps are designed to deliver the same comfort levels while using significantly less energy.
Look for systems with high SEER2 (Seasonal Energy Efficiency Ratio) ratings for air conditioners and AFUE (Annual Fuel Utilization Efficiency) ratings for furnaces. The higher the rating, the more efficiently the system converts energy into heating or cooling power.
For example, a 15-year-old air conditioner may have a SEER rating of 10, while new models often exceed 18 SEER2. That difference can translate to 20–40% lower energy consumption throughout the year. If you’re upgrading from a traditional furnace and AC combo, consider a heat pump system, which provides both heating and cooling using electricity rather than fossil fuels. Modern heat pumps are extremely efficient, especially when paired with variable-speed compressors and smart thermostats.
One of the simplest and most cost-effective HVAC upgrades is installing a programmable or smart thermostat. These devices automatically adjust the temperature based on your schedule, helping you avoid wasting energy when you’re asleep or away from home.
Smart thermostats go a step further by learning your heating and cooling habits and making real-time adjustments for maximum efficiency. Many also allow remote control through your smartphone, so you can monitor and manage your home’s comfort levels from anywhere.
According to the U.S. Department of Energy, homeowners can save up to 10% per year on heating and cooling costs by turning the thermostat back 7–10°F for eight hours a day. Smart thermostats make that easy to manage without sacrificing comfort.
Even the most efficient HVAC system can waste energy if your ductwork is leaking. In many homes, 20–30% of heated or cooled air escapes through holes, gaps, or poorly connected ducts before it reaches the living areas.
Sealing and insulating your ducts can greatly reduce energy loss and ensure your system doesn’t have to work as hard to maintain your desired temperature. Professional HVAC technicians can test your ductwork for leaks and apply mastic sealant or specialized tape to improve airflow and efficiency. If your home has ducts running through unconditioned spaces, like attics or crawlspaces, adding insulation around the ductwork will also help prevent heat transfer and lower utility bills.
Every home has areas that are warmer or cooler than others. Instead of trying to balance your entire house with one thermostat, zoning systems allow you to control the temperature in different areas independently.
Zoned HVAC systems use multiple thermostats and dampers in the ductwork to direct heating or cooling only where it’s needed. This not only improves comfort but also prevents your system from wasting energy on unoccupied rooms. For larger homes or multi-story layouts, zoning can lead to significant energy savings, sometimes as much as 30% on annual heating and cooling costs.
Good air circulation plays a key role in HVAC efficiency. When airflow is restricted by dust, pet hair, or clogged filters, your system must work harder to move air throughout your home. Regularly replacing air filters and adding a whole-home air purification or ventilation system can improve efficiency by maintaining steady airflow. These systems remove contaminants while balancing humidity levels, helping your HVAC unit operate more smoothly and consume less energy. An energy recovery ventilator (ERV) is an especially smart upgrade, it exchanges stale indoor air with fresh outdoor air while transferring heat and humidity to maintain comfortable conditions without wasting energy.
Even the best HVAC system will lose efficiency over time if it’s not properly maintained. Regular maintenance keeps your equipment clean, calibrated, and performing at its best.
During a maintenance visit, a professional technician will inspect components, clean coils, check refrigerant levels, tighten electrical connections, and ensure all moving parts are working properly. This not only improves energy efficiency but also helps prevent breakdowns and extend the life of your system. Most experts recommend scheduling maintenance twice a year, once in the spring for cooling and once in the fall for heating.
Beyond major system replacements, there are several smaller upgrades that can enhance your HVAC performance and reduce utility costs. Each of these improvements helps your HVAC system work less and use less energy.
Upgrading your HVAC system is one of the most effective ways to lower your monthly energy costs while keeping your home comfortable year-round. Whether you need a high-efficiency heat pump, smart thermostat installation, or improved ductwork, our experts at Sanks Mechanical can help you find the best energy-saving solutions for your home and budget. Contact Sanks today at 1-215-960-4803 to discuss your options for energy-efficient HVAC upgrades and start reducing your utility bills for good.