In this podcast, Bruce Stahlberg, an expert in HVAC systems and energy efficiency, highlighted the paramount importance of accurate testing and diagnostics for HVAC performance. He emphasized the significance of static pressure testing over temperature rise testing in assessing furnace performance. Reuben, Tessa and Bruce discussed challenges like sheetrock dust infiltrating A-coils during home renovations, potentially causing efficiency issues. Bruce suggested methods to detect blockages in the A-coil, emphasizing the need for accurate furnace sizing and the benefits of two-stage systems in maintaining optimal airflow. He introduced a new tool, a digital flow plate, for precise airflow measurement, aiming to enhance efficiency in air conditioning systems. However, Bruce noted that the tool is not yet widely adopted in the HVAC industry. 

Overall, they underscored the necessity of informed testing and diagnostics to ensure HVAC systems operate efficiently, delivering comfort, durability, and energy efficiency. They also highlighted the challenges in adopting advanced testing techniques in the HVAC industry and stressed the importance of educating contractors and homeowners about the benefits of accurate testing and proper system sizing.