Which Boiler?


What is a regular boiler?

An example of a central heating and hot water system layout using a regular boiler

Regular Boiler system Enlarge image

If you are replacing an older model of boiler, the chances are that you will have a regular (conventional) boiler. A typical conventional system incorporates a boiler and extended controls, a feed and expansion cistern, and a hot water cylinder (usually in the airing cupboard) which is often fed by a cold water storage cistern located in the loft.

*a thermostatically-controlled shower safeguards against sudden changes in water temperature.


Greenstar 12Ri

Image of Unique new features logo for Greenstar 12Ri

The Greenstar Ri boiler series is part of a market-leading range of energy-saving condensing gas-fired boilers from Worcester. They can cut heating and hot water bills by between 15-20% - and they’re up to 30% cheaper to run than an older boiler.

Greenstar condensing boilers deliver this energy-saving performance by recycling exhaust gases to extract and re-use latent heat - a highly efficient use of energy which also significantly reduces carbon dioxide in the atmosphere.

  • SEDBUK* A-rated efficiency - environmentally friendly
  • 12kW output (15, 18 and 24kW outputs also available for this boiler)
  • Compact dimensions - fits within kitchen cupboard
  • Compatible with Worcester’s Greenskies solar water heating system
  • Can be fitted inside kitchen cabinet dimensions
  • Reversible upwards or downwards pipe connections
  • Multi-directional fluing
  • For ease of installation, flow and return pipes can be plumbed in from above or below the boiler
  • Low NOx and CO2 emissions - environmentally friendly
  • 2 year** warranty with 10 year** warranty on primary heat exchanger

*Seasonal Efficiency of Domestic Boilers in the UK

**Subject to conditions