FAQs

No, turning your thermostat all the way down will not cool your home any faster. Modern systems work at a consistent rate, regardless of how low you set the temperature. Jensen Mechanical, a trusted HVAC contractor in Emporia, VA, recommends setting your thermostat to your desired comfort level and allowing the system to run steadily. Lowering it excessively can lead to unnecessary energy use, uneven cooling, and higher utility bills without improving performance.

Most homes should replace air filters every 1–3 months, depending on system usage and indoor conditions. As a general guideline from an experienced HVAC contractor in Emporia, VA, filters should always be changed at the beginning of each season and more frequently during periods of heavy heating or cooling. Regular filter changes improve airflow, maintain indoor air quality, and help your HVAC system run more efficiently.

Several factors can impact airflow and determine how often filters need replacement. Jensen Mechanical, a leading HVAC contractor in Emporia, VA, notes that homes with pets, allergy sufferers, higher occupancy, ongoing construction nearby, or poor indoor air quality typically require more frequent filter changes. The type of filter used and overall system condition also play major roles in maintaining healthy airflow and system efficiency. In addition, ductwork condition is critical—according to This Old House, duct sealing alone can improve system efficiency by up to 20%, making professional duct inspections and sealing an important part of HVAC maintenance.

For optimal comfort and energy efficiency, 68–70 degrees is generally ideal during the winter. Many homeowners working with an experienced HVAC contractor in Emporia, VA find that maintaining this range balances comfort while preventing excessive energy usage. Lowering your thermostat slightly when sleeping or away from home can further reduce heating costs without sacrificing comfort.