Viessmann Low-Loss Header 80/60, 1-1/4" NPT, with Insulation

The Viessmann Low‑Loss Header (80/60) is a high‑efficiency hydraulic break accessory designed for use with Viessmann wall‑mounted condensing boilers (such as the Vitodens 100 or 200 series). With 1‑1/4″ NPT connections and included insulation, it helps maintain proper return temperatures to the boiler, decouples the boiler flow from system flow and helps remove air and debris from the heating system.

Features

• Rated for system flows up to 19.5 GPM when configured for the 80/60 size
• 1‑1/4″ NPT connection type - compact installation suited for smaller boiler systems. 
• Includes insulation jacket (PUR foam) for improved efficiency and reduced standby losses. 
• Acts as hydraulic separation between boiler loop and system loop — prolongs boiler life and improves 
• Sensor, well, drain/flush plug and air bleed ports integral to the unit.