Tips on Buying a HVAC System


Are you buying a new home or thinking of replacing or updating your old HVAC system? This article will help you to shop smart and get exactly what you need to keep your home comfortable all year long.

The EER (Energy Efficiency Ratio) is used to evaluate how effectively a unit operates. It’s considered an easy objective measurement to decide between two units. The EER is calculated by dividing the BTU (British Thermal Units) rating by the wattage. If the EER is 12 or above, it is considered energy efficient. When comparing two HVAC systems, the one with the higher EER will be more energy efficient.

The SEER number (Seasonal Energy Efficiency Ratio) calculates the cooling capacity during a typical cooling season (rather than all-time). This number is most often shown on Energy Star labels. It measures a unit’s efficiency while cooling, but be forewarned; this universal measurement can be misleading if you live in an area with hot, humid summers as we do. Even a minor increase in the SEER rating of your HVAC system can help reduce power consumption significantly.

It’s also important to understand how many systems are needed to heat and cool your home properly. Larger homes need bigger systems. For the most accurate estimate of how many systems a house needs, call Stuart Pro! Our Comfort Consultants are available as your go-to HVAC inspectors during the buying or upgrade process.

Want even more helpful information? Check out our buying guide.