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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
  • Our 30kW and 35kW models suit homes of all sizes
  • Up to 10 years guarantee available*
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.

*5 year guarantee available as standard. 10 year extended guarantee is only available for boilers registered through Club Energy with a Glow-worm Power Filter.

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

  • Room thermostat that is capable of weather compensation*
  • Two channel wireless programmable room thermostat
  • Backlit display provides advanced user control and functionality

Climastat (discontinued)

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

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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 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
  • Available in a 25kW model

Ultimate₃ Regular (Open Vent) Boiler

  • High performance, ErP A rated regular boiler
  • Lightweight boiler with cupboard fit dimensions
  • Up to 10 years guarantee available*

Energy Combi Boilers

  • ErP A rated for efficiency - helping you to reduce your energy bills
  • Compact size will fit in kitchen cupboards
  • Up to 10 years guarantee available*