The Glow-worm Ultimate3 regular (open vent) boiler is designed for homes with high hot water demands.

• Include boiler, flue horizontal and power system filter
• High efficiency modulating grundfos pump lower running costs as the pump adapts to actual heating and hot water demand
• Lightweight boiler with cupboard fit dimensions
• Modern, bright, Liquid Crystal Display (LCD) display with easy-to-use interface
• High grade aluminium heat exchanger for proven and reliable performance
• Easy to install and service
• 5 years guarantee increased to 10 years warranty must be installed with a filter and registered on club energy