Ultimate₃ System Boiler

Built with an automotive grade, aluminium, heat exchanger, the Ultimate₃ is designed to offer high performance. Its Grundfos modulating pump reduces energy usage, meaning the boiler is A rated when it comes to efficiency.

The boiler features a modern, bright, LCD display with an easy-to-use interface, and is also compatible with Glow-worm’s popular MiGo Link app based control (sold separately) – meaning you can control your heating and hot water from anywhere at anytime by simply using your mobile phone or tablet.

The Ultimate₃ comes with a 5 year guarantee as standard with the option to extend up to 10 years* when registered by a Glow-worm myREWARDS installer. Glow-worm's installer reward scheme is open to installers who are Gas Safe registered or MCS certified. The program offers Silver, Gold, and Platinum tiers, with increasing perks varying by tier. Contact your local installer to see which benefits will be available to you.

*Eligibility applies when installed and registered with a Glow-worm Power System Filter.

• Superior performance system boiler available in a 25kW model
• Modern, bright, LCD display with an easy-to-use interface
• High quality, automotive grade, aluminium heat exchanger providing excellent performance
• ErP A rated for efficiency - helping you to reduce your energy bills
• Grundfos modulating pump for reduced energy use
• Inbuilt filling loop for straightforward maintenance
• Compatible with full range of Glow-worm controls, flues and accessories
• Ideal for use with innovative MiGo Link app based control
• Up to 10 years extended guarantee available when registered through myREWARDS with a Glow-worm Power System filter.
• Wide range of flue options available
• Wide range of Glow-worm accessories available