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*

Find your local Glow-worm Club Energy Installer

High performance

The Ultimate₃ regular boiler provides outstanding heating performance in a 25kW model, and is best suited to homes with high hot water demands, where a hot water storage cylinder and a cold water tank are already installed.

General information

Being both lightweight and very compact, the Ultimate₃ regular boiler can easily be installed within a kitchen cupboard if required.

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 regular (open vent) boiler available in a 25kW model
Modern, bright, LCD display with easy-to-use interface
Kitchen cupboard fit dimensions
High quality automotive grade aluminium heat exchanger providing excellent performance
Highly efficient, A rated boiler for ErP energy labelling to reduce energy bills
Ideal for use with innovative MiGo app based control - when used in conjunction with the appropriate system pack
5 years parts and labour guarantee*
Wide range of Glow-worm flues and accessories available

*when registered through Club Energy

Specifications

Ultimate₃, Regular Boiler	25kW
Boiler dimensions (H x W x D mm)	600 x 375 x 280
Maximum horizontal flue length 60/100 (m)	10
Maximum vertical flue length 60/100 (m)	10
PCDB seasonal efficiency (%)	89.6
ErP rating	A

Downloads

Brochures

Ultimate₃ brochure

Size: 2.88 MB

Operation instructions

Ultimate₃ regular operating instructions

Device Type: 25R

Size: 762.53 KB

Leaflet

Ultimate range leaflet

Size: 927.50 KB

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 free no obligation quote to ensure your Glow-worm boiler is the perfect fit for you and your home.

Find your local Glow-worm Club Energy Installer