Frequently Asked Questions

HVAC stands for Heating, Ventilation, and Air Conditioning.  It encompasses a system designed to provide thermal comfort and acceptable indoor air quality.  This system is responsible for regulating temperature, humidity, and air circulation in residential, commercial, and Industrial Buildings. 

Indoor air quality (IAQ) refers to the condition of the air withing and around homes/buildings, especially as it relates to the health and comfort of the occupants.  Good IAQ implies that the air is free of pollutants and contributes to a comfortable and safe living, working environment. 

To enhance indoor air quality, you can:

• Change air filters regularly.
• Use air purifiers.
• Ensure proper ventilation. 
• Control humidity levels
• Keep living space clean and as dust free as possible.

Regular filter changes are vital for maintaining optimal performance of your system.  It is generally recommended to replace filters or clean reusable filters every one to three months.  However, the frequency may vary based on factors like filter type, usage, and the indoor air quality.

The recommended thermostat setting for comfort and energy efficiency is around 78 degrees Fahrenheit (25-26 degrees Celsius) during summer and 68degress Fahrenheit (20-21 degrees Celsius) during the winter. However personal preferences and regional climate can influence the ideal setting. 

To enhance energy efficiency, things to consider:

• Regular maintenance.
• Programmable or smart thermostats.
• Proper insulation and sealing of windows and doors.
• Upgrading to energy- efficient HVAC equipment or using ceiling fans to improve air circulation.

It is recommended to get one maintenance per year on each of your systems.  Ideally, that means one tune up for your heater in the fall/winter, and one tune up for your air conditioner in the spring/summer.  If you have a combined heating and air conditioning system such as a heat pump, you should get two tune ups per year.

The average lifespan of an HVAC system is around 15-20 years, but factors such as maintenance, usage, type of system, and the quality of the equipment may decrease or increase the lifespan.  Regular maintenance can significantly extend your system’s lifespan.

While simple tasks like changing filters can be done by homeowners, it’s advisable to hire a professional for comprehensive maintenance, Professionals can identify and address potential issues, ensuring the system operates efficiently.

Look for these signs that your system needs repair:

• Unusual noises
• If the system has inconsistent temperatures
• Increased energy bills
• Poor airflow

These are all signs to be aware of.

You should consider replacing it if your system is over 10-15 years old, or it requires frequent repairs or, if your energy bills are rising month after month.  Newer models are more energy efficient and may offer better performance.

In most cases, it advisable to replace both the indoor and outdoor units of your HVAC system simultaneously.  HVAC systems are designed as a matched system, where the indoor and outdoor units are specifically engineered to work together efficiently.  Some important key considerations include the age of the system, refrigerant compatibility, and efficiency. 

Choosing the right size for you HVAC unit is a critical factor in maintaining a comfortable indoor environment while maximizing energy efficiency.  The size of the unit will depend on many factors such as climate, square footage, and insulation.  We recommend that you consult with a Brandywine Valley Comfort Specialist when determining the best size system for your home. 

Zoning allows you to control the temperature in different areas of your home independently.  This can optimize your energy usage and improve comfort by directing heating or cooling where it is needed most.

Check the label on the outer surface of your equipment to determine its manufacture date.  If it’s less than five years old, there’s a good chance that you equipment is covered by a warranty.  Always contact the manufacturer just to be clear on any and all warranty related questions.