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Ultimate₂ combi boiler

Exclusive combi boiler with 5 years warranty*

  • Leading combi boiler offering great performance
  • FREE 5 year warranty* with option to extend
  • £15 reward when registered through Club Energy
  • Available in 30kW and 35kW models

Our leading combi boiler

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 combi is available in a choice of 30kW and 35kW models and offers both high DHW flow rates and flexible flue options. The high performance model also features a modulating Grundfos pump for reduced energy use, a manual pressure gauge for easy installation and a modern, bright, LCD display with a simple-to-use interface.

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 complete Ultimate₂ range (available in combi, system and regular (open vent) options) is compatible with the full range of Glow-worm controls including the popular MiGo app based control.

The Ultimate₂ also comes with a £15 reward and 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

*When registered through Club Energy

Features & benefits

  • Combi boiler range with choice of 30 and 35 kW outputs
  • Modern, bright, LCD display with easy-to-use interface
  • High quality, automotive grade, aluminium heat exchanger providing excellent performance
  • ErP A rated for efficiency - helping to reduce energy bills
  • Modulating Grundfos pump for reduced energy use
  • Manual pressure gauge to make installation easy
  • Uses familiar Glow-worm diagnostics for easy install & servicing
  • Inbuilt filling loop
  • Compatible with full range of Glow-worm controls, flues and accessories
  • Ideal for use with innovative MiGo app based control
  • 5 years parts and labour guarantee*
  • Telescopic flue option available
  • ø60/100 and ø80/125 flue options available
  • Wide range of accessories available including spacing frame and pipe cover plate
  • Plume Management kit compatible

*with option to extend

Specifications

Specifications

Ultimate₂ combi boilerUnits30c35c
Casing dimensions (H x W x D)mm740 x 418 x 300740 x 418 x 300
Weight (lift)kg3333
Performance
CH output minimum/maximumkW6.1/25.57.1/25.5
DHW output CH output minimum/maximumkW6.1/30.67.1/35.7
DHW flow rate storage/combi (35°C rise)l/min12.514.4
SEDBUK rating 2009 89.389.2
NOx class (natural gas) 55
LPG compatible  NoNo
ErP rating heating AA
Erp rating DHW AA
Construction
Heat exchanger materialAluminium/Stainless steelAluminiumAluminium
Burner type Pre-mixedPre-mixed
Fully modulating YesYes
DHW plate heat exchanger YesYes
Integrated hydrobloc YesYes
Installation
Suitable for sealed systems YesYes
Inbuilt filling loop IntegratedIntegrated
Inbuilt adjustable system bypass Yesyes
Inbuilt condensate trap/siphon YesYes
Inbuilt boiler frost protection 2 Stage2 Stage
Zero compartment ventilation YesYes
Pump ErP fully modulating GrundfosErP fully modulating Grundfos
Clearances
Top (from top of boiler)mm300300
Sidemm0*0*
Bottommm300300
Frontmm²600**600**
User interface
User display Super bright LCDSuper bright LCD
Diagnostics AdvancedAdvanced
User adjustable CH temperature control YesYes
User adjustable DHW temperature control YesYes
Pipes
Water connectionsmm2 x 22/2 x 152 x 22/2 x 15
Flues
Maximum horizontal Ø60/100m99
Maximum vertical Ø60/100m99
Maximum horizontal Ø80/125m2525
Maximum vertical Ø80/125m2525
Optional plume management kit Ø60/100 YesYes
Optional spacing frame YesYes

*See manual for clearance if side panels are to be removed to assist future service and maintenance

** 5mm if removable panel/door

Related Products

Related Products

Climapro₂ RF Control

Climapro₂ RF

  • Two channel wireless programmable room thermostat
  • Backlit display provides advanced user control and functionality
  • Capable of room and weather compensation*
  • Simple to use handheld unit

Introducing MiGo

The personal heating assistant

  • Wi-Fi thermostat and easy-to-use app
  • Manage heating and hot water from anywhere
  • Reduces energy consumption, saves money
  • Internet weather compensation
  • eBUS communication

Climastat room thermostat

  • Easy to use
  • Extra low voltage
  • Simple & discreet 2 wire connection
  • Polarity not important

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)

Downloads

Downloads

Alternative products

Alternative products

Ultimate₂ system boiler

Exclusive system boiler with 5 years warranty*

  • ErP A rated for efficiency - helping to reduce energy bills
  • FREE 5 year warranty with option to extend*
  • £15 reward when registered through Club Energy
  • Available as 25kW model

Ultimate₂ regular (open vent) boiler

Exclusive regular (open vent) boiler with 5 years warranty*

  • ErP A rated for efficiency - to reduce energy bills
  • £15 reward when registered through Club Energy
  • Lightweight boiler with cupboard fit dimensions
  • FREE 5 year warranty with option to extend*