Download this diagram

Parallel On-Demand Heaters Plumbing Diagram

This shows a parallel installation of tankless water heaters. The use of heaters in parallel increases the heating capacity of the system while maintaining a higher flow rate with lower pressure drop through the heater. An expansion tank is typically installed on the cold water inlet but can be installed on the hot water supply after the water heater. The use of the strainer is highly recommended. The purge and pressure/temp relief valve are typically used when the building outlets are safety fixtures.

Plumbing Diagram of Parallel On-Demand Heaters




Application Gallery


The Bradley Logo and registered trademarks are owned by The Bradley Corporation®