Want to get an idea which boiler would suit your needs before contacting an installer? Answer a few questions about your home or find out which boiler can directly replace your current one.


Greenstar i

Greenstar i

  • Our most popular combi boiler
  • Suitable for small to medium homes
  • Fills a standard kitchen sink in 45 seconds*
  • Gas
  • Combi
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Greenstar Si Compact

Greenstar Si Compact

  • Our space saving combi boiler that fits within a standard kitchen cupboard
  • Suitable for small to medium homes
  • Fills a standard kitchen sink in 45 seconds*
  • Gas
  • Combi
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Greenstar CDi Compact

Greenstar CDi Compact

  • Our space saving combi boiler that fits within a standard kitchen cupboard
  • Suitable for homes with more than one bathroom
  • Fills a standard kitchen sink in 37 seconds*
  • Gas
  • Combi
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Greenstar CDi Classic

Greenstar CDi Classic

  • Our top of the range high performance combi boiler
  • Suitable for larger homes with one or two bathrooms
  • Fills a standard kitchen sink in 32 seconds*
  • Gas
  • Combi
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Greenstar CDi Highflow

Greenstar CDi Highflow

  • Our ultra high performance floorstanding combi boiler
  • Designed for larger two bathroom homes
  • Fills a standard kitchen sink in 19 seconds*
  • Gas
  • Combi
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Greenstar i System (9kW to 24kW)

Greenstar i System (9kW to 24kW)

  • Our most popular system boiler
  • Suitable for all sizes of property
  • Can be used with our Greenskies solar panels and our Greenstore hot water storage cylinders
  • Gas
  • System
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Greenstar i System (27kW and 30kW)

Greenstar i System (27kW and 30kW)

  • Our space saving system boiler that fits within a standard kitchen cupboard
  • Suitable for homes with higher heating and hot water demand
  • Can be used with our Greenskies solar panels and our Greenstore hot water storage cylinders
  • Gas
  • System
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Greenstar CDi Classic System

Greenstar CDi Classic System

  • Our top of the range high performance system boiler
  • Suitable for larger homes with higher heating and hot water demand
  • Can be used with our Greenskies solar panels and our Greenstore hot water storage cylinders
  • Gas
  • System
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GB162

GB162

  • Part of a market leading range of gas fired boilers
  • Perfect for large homes and commercial properties
  • Patented, award-winning ALU-Plus heat exchanger
  • Gas
  • System
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Greenstar Ri (12kW to 24kW)

Greenstar Ri (12kW to 24kW)

  • Our best selling regular boiler that fits within a standard kitchen cupboard
  • Suitable for small to medium homes
  • Can be used with our Greenskies solar panels and our Greenstore hot water storage cylinders
  • Gas
  • Regular
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Greenstar Ri (27kW and 30kW)

Greenstar Ri (27kW and 30kW)

  • Our ultra space saving regular boiler that fits easily within a kitchen cupboard
  • Suitable for medium to large homes
  • Can be used with our Greenskies solar panels and our Greenstore hot water storage cylinders
  • Gas
  • Regular
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Greenstar CDi Classic Regular

Greenstar CDi Classic Regular

  • Our top of the range high performance regular boiler
  • Suitable for larger properties
  • Can be used with our Greenskies solar panels and our Greenstore hot water storage cylinders
  • Gas
  • Regular
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Greenstar CDi FS Regular

Greenstar CDi FS Regular

  • Our ultra high performance floorstanding regular boiler
  • Perfect replacement for an older floorstanding boiler
  • Can be used with our Greenskies solar panels and our Greenstore hot water storage cylinders
  • Gas
  • Regular
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* For the highest output boiler in the range to fill an 8L capacity sink bowl based on raising the cold main temperature by 40°C without any flow restriction at the taps or in the pipework.

Find a local installer

Each heating system needs custom designing. By using the search feature, you can find and contact a Worcester Accredited Installer in your area to book a home visit.

After calculating the best system for your home, your installer will then come and visit you at home to assess your heating and hot water needs and give you a free estimate.

  • Contact one of our installers and be in with a chance to win £400 worth of Bosch appliances. Terms

Did you know?

Your new boiler is protected by a no quibble guarantee which you can extend to up to 10 years. Terms & Conditions apply.