The Glow-worm Ultimate3 system boiler is intended for homes with a high demand for hot water. The Ultimate3 system is a sealed system that comes with a 25 kW output and features flexible flue options and an aluminium heat exchanger for proven reliability and performance.

• Include boiler, flue horizontal and power system filter
• High grade aluminium heat exchanger for proven and reliable performance
• High efficiency modulating grundfos pump for reduced energy use
• Easy to install and service
• 5 years guarantee increased to 10 years warranty must be installed with a filter and registered on club energy