Ultimate₃ System Boiler
High efficiency ErP 94% A rated boiler
- ErP A rated for efficiency - helping to reduce energy bills
 - Up to 10 years guarantee available*
 - £15 reward when registered through Club Energy
 - Available as 25kW model
 
The Ultimate₃ system boiler is suitable for homes with high hot water demands. The Ultimate₃ system is a sealed system that comes in a 25kW output and features flexible flue options and an aluminium heat exchanger for proven reliability and performance. The Ultimate3 also features a Grundfos modulating pump for reduced energy use and a modern bright LCD display with an easy to use interface.
*5 year guarantee available as standard. 10 year extended guarantee is only available for boilers registered through Club Energy with a Glow-worm Power Filter.
Specifications
Related Products
Related Products
MiGo (discontinued)
- Wi-Fi thermostat and easy-to-use app
 - Manage heating and hot water from anywhere
 - Reduces energy consumption, saves money
 
Climastat room thermostat (discontinued)
- Easy to use
 - Extra low voltage
 - Simple & discreet 2 wire connection
 
Climapro₁ control (discontinued)
- Annual service reminder function
 - Automatic update for summer and winter
 - Simple and discreet
 
Downloads
Downloads
Alternative products
Alternative products
Ultimate₃ Combi Boiler
- Leading combi boiler offering great performance
 - Up to 10 years guarantee available*
 - £15 reward when registered through Club Energy
 - Available in 30kW and 35kW models
 
Ultimate₃ Regular Boiler
- ErP A rated for efficiency - to reduce energy bills
 - £15 reward when registered through Club Energy
 - Lightweight boiler with cupboard fit dimensions
 - Up to 10 years guarantee available*
 
