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The Ultimate₃ combi boiler provides central heating and hot water without the need for a cylinder or tank to store water. The Ultimate₃ combi is available in a choice of 30kW and 35kW models making it suitable for a range of homes, and provides a high domestic hot water flow rate to ensure reliable performance for you and your family.
Built with an automotive, grade aluminium heat exchanger, the Ultimate₃ is designed to offer high performance. The Grundfos modulating pump also helps to reduce energy use meaning the boiler is ErP 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). This means 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 10 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
*When registered through Club Energy
|Ultimate₃ combi boiler||30kW||35kW|
|Boiler dimensions |
(H x W x D mm)
|740 x 418 x 300||740 x 418 x 300|
|DHW flow rate storage/combi (35°C rise) (l/min)||12.4||14.4|
|Maximum horizontal flue length 60/100 (m)||10||6|
|Maximum vertical flue length 60/100 (m)||10||10|
|PCDB seasonal efficiency (%)||89.6||89.7|
|ErP rating heating||A||A|
|ErP rating DHW||A||A|
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.