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The Ultimate₂ is Glow-worm’s high performance, ErP A rated boiler range developed for the one off installer market, and exclusively manufactured for City Plumbing Supplies.
The Ultimate₂ regular (open vent) boiler is designed for homes with a high hot water demand and is available as a 25kW model. The Ultimate₂ regular model is lightweight for easy installation, and is so flexible it can be sited inside a kitchen cupboard thanks to its compact dimensions.
Designed using an automotive grade, aluminium heat exchanger, the Ultimate₂ offers proven reliability and performance whilst being light to install and also easy to maintain. The model also offers flexible flue options for easy siting, and a modern, bright, LCD display with a simple-to-use interface.
The complete Ultimate₂ range (including combi, system and regular options) is compatible with the full range of Glow-worm controls including the popular MiGo app based control.
The Ultimate₂ offers installers a £15 reward and comes with a free 5 year warranty when registered through Club Energy; where installers can also benefit from business tools including the Plumbing Toolbox app, Gas Safe Notifications, Benchmark and some great rewards.
Features & benefits
*When registered through Club Energy
|Ultimate₂ system boiler||Unit||25s|
|Casing dimensions (H x W x D)||mm||740 x 418 x 300|
|CH output minimum/maximum||kW||6.1/25.5|
|SEDBUK rating 2009||89.3|
|NOx class (natural gas)||5|
|Heat exchanger material||Aluminium/Stainless steel||Aluminium|
|DHW plate heat exchanger||Yes|
|Suitable for sealed systems||Yes|
|Inbuilt filling loop||Integrated|
|Inbuilt condensate trap/siphon||Yes|
|Inbuilt boiler frost protection||2 Stage|
|Zero compartment ventilation||Yes|
|Top (from top of boiler)||mm||300|
|User display||Super Bright LCD|
|User adjustable CH temperature control||Yes|
|Water connections||mm||2 x 22/2 x 15|
|Maximum horizontal Ø60/100||m||9|
|Maximum vertical Ø60/100||m||9|
|Maximum horizontal Ø80/125||m||25|
|Maximum vertical Ø80/125||m||25|
|Optional flume management kit Ø60/100||Yes|
|Optional spacing frame||Yes|
*See manual for clearance if side panels are to be removed to assist future service and maintenance
** 5mm if removable panel/door