Perfect for medium-sized homes with one bathroom and a seperate shower, the Greenstar 4000 is a very popular Worcester Bosch boiler. It is a full modernised boiler from the design to the easy-to-use full-colour text display, it is also very quiet too. Designed to run on a 20% hydrogen blend for a longer lifespan and energy efficiency.
Smart capabilities will allow you to adjust the heating in the palm of your hand with a smartphone or smart device.
This is calculated based on the average gas bill of a three-bedroom home in the UK spending £1343.60 per year¹. When upgrading from a G-rated boiler to a modern A-rated boiler you can save £540 per year on your gas bill², a 40% saving on your gas bill. Endotherm can save you an additional 15% on your energy bill³, an additional £120 saving. A system filter can save you 6% on your annual bill4 - another £40 and a Hive smart thermostat can also save 15%5, another £96!
1Source - Money Helper 2Source - Energy Saving Trust 3Source - Endotherm 4Source - Dewells 5Source - Hive
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