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
- FREE 5 year parts and labour guarantee*
- Available in a 25kW model
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).
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 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 also comes prepared with a free 5 year parts and labour guarantee when your Gas Safe registered installer registers the installation on the Glow-worm Club Energy installer loyalty programme.
Features & benefits
- 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 app based control
- Free 5 years parts and labour guarantee*
- Wide range of flue options available
- Wide range of Glow-worm accessories available
*with option to extend when registered through Club Energy
Support
Our service doesn't finish with a sale, we are always here for you to offer expert advice. We'll support you from registering your new product to booking an engineer visit.
Find an Installer
Get a boiler installation quote from your local Glow-worm installer to make sure you're in the best hands. It's essential to get your boiler installed by an expert to ensure it's done correctly and safely, get in touch and our installers will help you find the perfect boiler for your home and your budget.
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
Your personal heating assistant
- Remote heating and hot water control
- Automatically learns your energy needs
- MiGo and Glow-worm boilers speak the same language
- Internet weather compensation
- Full cost-saving potential
Climapro₁ control
Available wireless and wired
- Annual service reminder function
- Automatic update for summer and winter
- Simple and discreet
- Weather compensation ability (when used with optional outdoor sensor)
Climapro₂ RF control
Glow-worm’s most innovative wireless programmable room thermostat
- 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
- Central heating control system to suit your timetable and lifestyle
Climastat
Thermostat by Glow-worm
- Easy to use
- Extra low voltage
- Simple & discreet 2 wire connection
- Polarity not important
Downloads
Downloads
Alternative products
Alternative products
Ultimate₃ combi boilers
High efficiency combi boiler from Glow-worm
- Leading combi boiler offering outstanding performance
- ErP A rated for efficiency – helping you to reduce your energy bills
- FREE 10 year parts and labour guarantee*
- Extended guarantee options available
- Our 30kW and 35kW models suit homes of all sizes
Ultimate₃ regular (open vent) boiler
High efficiency regular boiler from Glow-worm
- High performance, ErP A rated regular boiler
- Lightweight boiler with cupboard fit dimensions
- FREE 5 year guarantee*