How is HVAC performance generally assessed?

HVAC performance is primarily assessed through energy efficiency ratings such as SEER (Seasonal Energy Efficiency Ratio), EER (Energy Efficiency Ratio), and AFUE (Annual Fuel Utilization Efficiency). These ratings provide standardized metrics that allow consumers and professionals to understand how effectively and efficiently a system operates.

SEER measures the cooling efficiency of air conditioning systems over a typical cooling season, while EER measures the efficiency at a specific operating point. AFUE indicates how well a furnace converts fuel into usable heat over the course of a year. Higher ratings in these categories signify better energy efficiency, which can lead to reduced energy costs and a lower environmental impact.

In contrast, assessing performance solely by the color of system components, the amount of insulation, or the age of the equipment does not provide a comprehensive understanding of its efficiency or operating capabilities. While these factors might influence HVAC performance in various ways, they do not inherently quantify or evaluate the system's functional efficiency like the specified energy efficiency ratings do.