Glow-worm Glow-worm Ultimate3 30C
The Glow-worm Ultimate3 is the brand's premium offering, featuring 94.5% efficiency and a potential 10-year warranty. It delivers Vaillant-level performance under the Glow-worm nameplate at a competitive price.
Technical Specifications
Key Features
- 94.5% ErP seasonal efficiency
- 10-year warranty available
- Digital display with diagnostics
- Weather compensation ready
- Smart thermostat compatible
- Vaillant Group premium components
Best For
3-bed homes wanting premium efficiency at a slightly lower price than the equivalent Vaillant model.
Common Questions About the Glow-worm Ultimate3 30C
Is the Ultimate3 as good as a Vaillant ecoTEC Plus?
Very similar internally. The Vaillant badge typically commands £150–£200 more. For budget-conscious homeowners, the Ultimate3 is an excellent alternative.
Does the Ultimate3 come with a 10-year warranty automatically?
No — it requires registration within 30 days of installation and annual servicing to unlock the full 10-year term.
What controls work with the Glow-worm Ultimate3?
It's compatible with Glow-worm's own Climapro2 smart controls and most third-party OpenTherm-compatible thermostats.
Other Glow-worm Models We Install
Ready to Get the Glow-worm Ultimate3 30C Installed?
We supply and install the Glow-worm Glow-worm Ultimate3 30C across Corby, Kettering, Northampton, and all surrounding areas. Fixed price, Gas Safe certified.