A tool exists to determine the appropriate capacity of a vessel designed to accommodate the volume increase of water due to heating in closed hydronic systems. This device takes into account factors such as system volume, initial fill temperature, maximum operating temperature, and system pressure to calculate the required tank volume. For example, a system with a large water volume operating at high temperatures will necessitate a larger tank than a smaller, lower-temperature system.
Proper selection and sizing of this component are crucial for maintaining optimal system performance and preventing potential damage. Historically, undersized components led to pressure relief valve discharge, indicating a system exceeding its design limits. Using these tools ensures system longevity, energy efficiency, and adherence to safety regulations by providing the necessary buffer for thermal expansion.