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about all your gas central heating
installation needs, click the above link.

Key features include:

  • Available in 25kW, 30kW outputs for hot water.
  • Central heating outputs: both models – 24kW
  • Hot water flow rates: 10.2 & 12.3 litres per minute @35°C temperature rise
  • SI combis are also suitable for apartments and small to medium sized 1 bathroom properties, and offer slightly higher hot water flow rates than the i Junior series
  • SI combis allow the hot water temperature to be controlled and can be used with wider range of optional controls
  • Si combis can also be installed in variety locations, including kitchens, utility rooms, bathroom, airing cupboards, lofts or garages
  • All SI appliances come with in-built frost protection.

What you get for the price we offer

Our prices at LCH are second to none. We are able to offer you a fixed price for the replacement of your boiler with similar one, subject to the following:

  • Your existing gas pipes must be the correct size (which is usually the case).
  • Your current boiler must be reasonably close to the waste pipe or gully to run the condensate pipe (again, which is usually the case).
  • It must also have a horizontal flue, with at least 300mm clearance to the nearest window or vent (again, usually the case).

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Vaillant Advanced Installer Worcester Bosch Baxi Advanced Installer 10 years guarantee 7 years guarantee