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Glow-worm Ultimate3 25S 25kW System Boiler with Horizontal Flue Pack 10021403

Regular price £1,359.00 GBP
Regular price £1,195.92 GBP Sale price £1,359.00 GBP
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The Ultimate3 system boiler is suitable for homes with high hot water demands. The Ultimate 3 system is a sealed system that comes in a 25kW output and features flexible flue options and an aluminium heat exchanger for proven reliability and performance. The Ultimate 3 also features a Grundfos modulating pump for reduced energy use and a modern bright LCD display with an easy to use interface. Parts and labour are guaranteed for 5 years. The boiler comes packaged with a horizontal flue pipe for additional convenience and value.

  • High grade aluminium heat exchanger for proven and reliable performance
  • High efficiency modulating Grundfos pump for reduced energy use
  • Easy to install and service
  • Exclusive to City Plumbing Supplies
  • Glow-worm
  • 5 year Guarantee


Standard 3 - 5 Business Days: £5.95

Express  1 - 2 Business Days: £9.95 

Free Standard Delivery On Orders Over: £250

We only dispatch orders between Monday to Friday.

All orders must be placed before 12pm, so they can be dispatched on the same working day.