An HVAC system works by using components like a furnace, air conditioner, ducts, and vents to regulate and distribute warm or cool air throughout a building.

HVAC systems should undergo professional maintenance at least once a year. Ideally, schedule a heating system check-up in the fall and an air conditioning system check-up in the spring. Regular maintenance helps identify and resolve issues early, improving efficiency and extending the lifespan of your system.

Replace HVAC filters every 1 to 3 months, depending on usage and environmental factors.

Regular HVAC maintenance includes checking and replacing filters, inspecting and cleaning coils, checking refrigerant levels, inspecting ductwork for leaks, and ensuring all electrical connections and components are functioning properly.

Signs that your HVAC system may need repair or replacement include:

• Frequent breakdowns or repairs.
• Unusual noises or odors.
• Inconsistent temperatures or poor airflow.
• High energy bills without increased usage.
• System age (typically over 15 years old for replacement consideration).
• Excessive dust or humidity problems.

Consider the systems efficiency, size, cost, and compatibility with your homes layout and existing infrastructure.

To improve indoor air quality with your HVAC system, you can:

• Regularly replace or clean filters.
• Use high-efficiency particulate air (HEPA) filters.
• Ensure proper ventilation to reduce indoor pollutants.
• Use air purifiers or UV germicidal lights.
• Maintain consistent humidity levels with humidifiers or dehumidifiers.
• Keep ducts clean and free of dust and debris.

Regular maintenance, proper insulation, sealing leaks, and using a programmable thermostat can improve energy efficiency.

A programmable thermostat can save energy and money by automatically adjusting the temperature based on your schedule.

A new HVAC system can cost between $3,000 and $10,000, depending on the type, size, and efficiency.

Yes, many utility companies and government programs offer rebates and incentives for upgrading to energy-efficient HVAC systems.

SEER (Seasonal Energy Efficiency Ratio) rating measures the efficiency of air conditioners and heat pumps; higher SEER ratings indicate greater energy efficiency.

The size of the HVAC system depends on your homes square footage, insulation, and climate. A professional can perform a load calculation to determine the right size.

Noises can indicate issues like loose parts, debris in the unit, or motor problems. It's best to have a professional inspect it.

Check for clogged drain lines or a full drain pan. If the issue continues, contact a professional technician for help.