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Ultimate₃ combi boilers

High efficiency combi boiler from Glow-worm

  • Leading combi boiler offering outstanding performance
  • ErP A rated for efficiency – helping you to reduce your energy bills
  • FREE 5 year parts and labour guarantee
  • Extended guarantee options available
  • Our 30kW and 35kW models suit homes of all sizes
Find your local Glow-worm Club Energy installer

Outstanding performance

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.

Specifications

Specifications

Ultimate₃ combi boiler30kW35kW
Boiler dimensions
(H x W x D mm)
740 x 418 x 300740 x 418 x 300
DHW flow rate storage/combi (35°C rise) (l/min)12.414.4
Maximum horizontal flue length 60/100 (m)106
Maximum vertical flue length 60/100 (m)1010
PCDB seasonal efficiency (%)89.689.7
ErP rating heatingAA
ErP rating DHWAA

Related Products

Related Products

MiGo personal heating assistant

  • Remote heating and hot water control
  • Automatically learns your energy needs
  • MiGo and Glow-worm boilers speak the same language

Climapro₂ RF Control

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

Climastat

  • Easy to use
  • Extra low voltage
  • Simple & discreet 2 wire connection

Downloads

Downloads

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.

Alternative products

Alternative products

Ultimate₃ system boiler

  • Highly reliable system boiler offering outstanding performance
  • ErP A rated for efficiency – helping you to save money on your energy bills
  • FREE 5 year parts and labour guarantee*

Ultimate₃ regular (open vent) boiler

  • High performance, ErP A rated regular boiler
  • Lightweight boiler with cupboard fit dimensions
  • FREE 5 year guarantee*

Energy combi boilers

  • ErP A rated for efficiency - helping you to reduce your energy bills
  • Compact size will fit in kitchen cupboards
  • Highly efficient for lower running costs