Ultimate₃ Combi

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.

Leading combi boiler offering outstanding performance

ErP A rated for efficiency – helping you to reduce your energy bills

FREE 10 year guarantee

Manufactured in the UK at Glow-worm’s industry-leading facilities

Modern, bright, LCD display with easy-to-use interface

Glow Worm Reliability

Technical Details

ErP Efficency Rating

ErP Data Sheet

LPG Mode Available

Control Options

EasyControl™ Compatible

Solar Compatible

Central Heating Output (kW)

Dimensions (mm) height x width x depth

Hot water flow rate 40°C (litres per minute)

ErP Efficency Rating A

ErP Data Sheet download

LPG Mode Available

Control Options

EasyControl™ Compatible

Solar Compatible

Central Heating Output (kW) 30

Dimensions (mm) 740 x 418 x 300

Hot water flow rate 40°C 12.4

ErP Efficency Rating A

ErP Data Sheet download

LPG Mode Available

Control Options

EasyControl™ Compatible

Solar Compatible

Central Heating Output (kW) 35

Dimensions (mm) 740 x 418 x 300

Hot water flow rate 40°C 14.4