How does water flow through a modular cast iron boiler system?

In a modular cast iron boiler system, water flows continuously through all modules. This design allows for efficient heat transfer and consistent operation across the system. Each module is designed to operate simultaneously, ensuring that the water circulates continuously to provide optimal heating. The continuous flow helps to maintain a steady temperature and efficient operation of the entire boiler system.

The uninterrupted movement of water through the modules is essential for maintaining the proper thermal dynamics and preventing issues such as overheating or localized shutoffs. It also ensures balanced heating, which can improve overall energy efficiency.

Other configurations, such as being connected in series, would not support the diverse load requirements typically managed by a modular boiler. Intermittent flow aligns more with specific operating conditions rather than a continuous operational mode expected in most modern heating systems. Similarly, operation without headers or manifolds is not characteristic of modular systems, as these components help facilitate distributed flow across multiple modules.