AcroISO supply the range of Lacaze HydroGas direct gas heated calorifiers for the efficient production of semi-instantaneous hot water.

The Lacaze Energies HydroGas system is intended for use in systems where flow rates and hot water demand fluctuate.

The integrated forced air gas burner, which can be used with all types of gas, operates at a efficiency >90% and is designed to minimise CO and NOx emissions.

The burner is removable for easy maintenance or for future upgrade.




The auto compensating combustion chamber helps extend the life of the system.

The Lacaze EnergiesHydroGas unit can be used in a closed-flue system; so a chimney is not required. Alternatively it can be installed outdoors, avoiding the need for a plantroom.

Delivered pre-assembled with insulation and boiler controls, HydroGas units can be supplied in capacities of 750 to 3,000-litres; with burner power output ratings of 32kW to 140kW.





In addition, electric heaters can be installed if required.

If you are interested in the Lacaze Energies HydroGas range please call or email us to discuss your requirements.