Exclusive Combi Boiler

  • High efficiency combi boiler designed to meet Building Regulations Part L 2010
  • 5 years FREE warranty
  • Available in 30 & 35 kW
  • Easy to use and install
  • Grundfos pump with daily pump exercise program

Ultimate c

The Ultimate is the new City Plumbing Supplies exclusive boiler range from Glow-worm.

Designed and manufactured at Glow-worm’s industry-leading facilities in Belper, Derbyshire. The straightforward, boiler range is easy to use & install and supported with a FREE 5 year warranty as standard.

The Ultimate c combi boiler range is available in a choice of 30kW and 35kW models and features high DHW flow rates, flexible flue options and a stainless steel heat exchanger for proven reliability and performance.

The Ultimate c boiler has a range of optional system and boiler controls and the pack is complete with standard horizontal flue. All models are available in straightforward and easy to order installer packs.

Installation and servicing are made straightforward, with an LCD display using standard Glow-worm diagnostics, and easy access to both 24v and 230v wiring compartments.

Key Features & Benefits

  • New high efficiency combi boiler designed to meet Building Regulations Part L 2010
  • UK manufactured in Glow-worm’s industry-leading facility
  • Stainless steel heat exchanger for proven and reliable performance
  • Grundfos pump with daily pump exercise program
  • LPG compatible; without the need for a separate conversion kit
  • Compatible with Glow-worm’s innovative Climapro₂ RF programmable room thermostat
  • Easy to use and install
  • LCD display to provide straightforward installer and homeowner interface
  • Compatible with Glow-worm’s full range of flue components
  • Compatible with Glow-worm’s range of intelligent controls
  • 6 simple pack options
  • 5 year warranty as standard*

The Ultimate boiler range is available only from City Plumbing Supplies which have 190 branches nationwide so you’re never far from your local branch. City Plumbing Supplies have all the essential Glow-worm products which are always in stock and the ability to get rapid delivery from their central distribution centre.

*Glow-worm’s Club Energy installers can offer you up to 15 years of warranty; if you’re interested please get in touch with your nearest one here.

Related Products

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

Alternative products


Compact and flexible Combi Boiler

  • High Efficiency & NOx Class
  • Optional direct rear flue
  • Fits standard kitchen cupboard
  • Optional glide down plug in timer
  • 2 Year Parts & Labour Warranty