Heating Expansion Vessels

Heating expansion vessels are used in sealed heating systems to accommodate the increase in water volume that occurs as the system temperature rises. The vessel provides space for this expansion, helping maintain system pressure and protecting the heating system from excessive pressure.

Trebles supplies heating expansion vessels for a range of domestic and commercial heating applications, with different capacities and specifications available to suit the requirements of the system.

Explore Our Popular Ranges

Flamcomat FG Main Vessels

The Flamcomat FG Vessels for sealed heating installations (acc. to EN12828)…
Flexcon Top Vessel

Flexcon Top Vessels

Flexcon TOP vessels are a reliable solution for both heating and…
Heatwave Vessels

Heatwave Vessels

HeatWave™ tanks are the quality solution for hydronic expansion.
Reflex N_NG Vessel

Reflex N/NG Vessels

REFLEX NG / N Vessels are the worlds most frequently used…
Zilmet Calpro

Zilmet Cal-Pro Vessels

The Zilmet CAL-PRO expansion vessels absorb the water volume variations in…