Caleffi Robocal Automatic Float Air Vent 15mm Compression 502649 potable expansion vessel The key distinction is how

The key distinction is how you want to handle the floor deck

making it compliant with Passivhaus Institut requirements

5 litre instant hot water tank and filtration system

No external protection device (GARO

6m² heat exchanger is designed to work efficiently at the lower primary flow temperatures produced by both ASHP and GSHP systems

Caleffi Robocal Automatic Float Air Vent 15mm Compression 502649 potable expansion vessel The key distinction is howThe Caleffi ROBOCAL Automatic Float Air Vent with 15mm Compression Connection (MPN 502649) is the UK compression fit version of Caleffi's Series 5026 Robocal automatic air vent a compact float type vent with vertical discharge, adapted for direct in line installation in a 15mm pipework circuit without adapters. The polypropylene float, silicone rubber obturator, and stainless steel spring continuously remove dissolved and free air from heating and