Ultimate₃ System Boiler
High efficiency sealed system boiler from Glow-worm
- Highly reliable system boiler offering outstanding performance
- ErP A rated for efficiency – helping you to save money on your energy bills
- Available in a 25kW model
- Up to 10 years guarantee available*
The Ultimate₃ System boiler provides outstanding heating performance in a 25kW model, and is suitable for homes with high hot water demands (when combined with a hot water storage cylinder).
*FREE 5 year standard guarantee available. 10 year extended guarantee is only available for boilers registered through Club Energy with a Glow-worm Power System filter.
Specifications
Specifications
| Ultimate₃ system boiler | 25kW |
|---|---|
| Boiler dimensions (H x W x D mm) | 740 x 418 x 300 |
| Maximum horizontal flue length 60/100 (m) | 10 |
| Maximum vertical flue length 60/100(m) | 10 |
| PCDB seasonal efficiency (%) | 89.7 |
| ErP rating | A |
Related Products
Related Products
MiGo personal heating assistant (discontinued)
- Remote heating and hot water control
- Automatically learns your energy needs
- MiGo and Glow-worm boilers speak the same language
Climapro₂ RF control
- Simple-to-use handheld unit can be wall mounted or portable within the living area
- Backlit display provides advanced user control and functionality
- Two channel wireless programmable room thermostat
Climastat (discontinued)
- Easy to use
- Extra low voltage
- Simple & discreet 2 wire connection
Downloads
Downloads
How to get
Want to find out more?
Find your local Glow-worm Club Energy Installer
Club Energy is Glow-worm’s installer loyalty scheme. By choosing a Glow-worm Club Energy Partner, you’re choosing our network of fully trained, independent installers who can offer you exclusive extended guarantees, as well as a no obligation quote to ensure your Glow-worm boiler is the perfect fit for you and your home.
Alternative products
Alternative products
Ultimate₃ Combi Boilers
- Leading combi boiler offering outstanding performance
- ErP A rated for efficiency – helping you to reduce your energy bills
- Our 30kW and 35kW models suit homes of all sizes
Ultimate₃ Regular (Open Vent) Boiler
- High performance, ErP A rated regular boiler
- Lightweight boiler with cupboard fit dimensions
- Up to 10 years guarantee available*
Energy system boilers
- Compact size will fit perfectly in kitchen cupboards
- ErP A rated for efficiency
- Up to 10 years guarantee available**