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Worcester Bosch Greenstar 4000 15kW 2/3 – IFC

Worcester Bosch 4000 15kw

SKU: 10-106-22-03

£3,543.00

MSRP:

Starting from £3,543.00
Instant Advice Options
What's Included
A modern and efficient system boiler, perfect for small homes. With a stylish design and quiet operation, it integrates seamlessly into your home. Backed by a 10-year guarantee for complete peace of mind. The reliable choice for modern heating.
  • With an ERP rating of A and efficiency of 94%
  • Central heating output of 15kW
  • Worcester Bosch boilers rated 4.7 on Trustpilot
  • WarmZilla is a trusted Worcester Bosch Installer
GET QUOTE

We offer fast and reliable boiler installations within 48 hours.

Every one of our engineers are Gas-Safe Registered.

We cover every UK postcode.

Rated Excellent on Trustpilot.

Don't Just Take Our Word For It: See Why UK Homeowners Trust WarmZilla!

Partner of CompareTheMarket & MoneySuperMarket

Trust Pilot Star

Rated Excellent on Truspilot

Trusted Partner of Checkatrade

The Worcester Bosch Greenstar 4000 15kW is a compact and efficient system boiler designed for small to medium-sized homes that need reliable heating and hot water performance. Built with Worcester Bosch’s trusted engineering and innovation, it delivers outstanding energy efficiency and long-lasting comfort.

With its modern design and Quiet Mark certification, the Greenstar 4000 operates quietly and efficiently, making it ideal for installation in kitchens, utility rooms, or airing cupboards. It’s A-rated efficiency helps reduce energy consumption and lower heating costs, while built-in frost protection ensures reliable operation all year round.

Backed by a 10-year parts and labour guarantee, this boiler offers lasting peace of mind and dependable performance. For homeowners looking for a quiet, efficient, and compact heating solution from one of the UK’s most trusted brands, the Worcester Bosch Greenstar 4000 15kW is an excellent choice.

We offer fast and reliable boiler installations within 48 hours.

We cover every UK postcode.

Trustpilot
kW Output
15 KW
ERP Rating
A Rated
Energy Efficiency
94 %
Dimensions
Height 710mm
Width 400mm
Depth 310mm
10 year guarantee
Manufactured in the UK
High performance, control and efficiency
Precision heating to reduce your fuel bills
Perfect for small to medium sized homes with one bathroom
Worcester Bosch boilers rated 4.7 on Trustpilot
Heating technology at it's best
Rewire Current Thermostat
Installation by a local Gas Safe Engineer (arriving between 8-11am)
Removal of existing system (inclusive of tanks if applicable)
Removal of installation rubbish off site including boiler
Boiler flue installation
Magnetic filter for ongoing protection
System cleanse of your heating system
Inhibitor and System cleaner for protection
Condensate pipework or upgrade (if applicable)
Gas pipe upgrade (if required)
Copper and fittings pack with pipe work installation
Re-wire of existing controls
CO Alarm included
Delivery of package via courier or your local engineer
12-month WarmZilla workmanship warranty
Registration of warranty and Building Control Certificate by WarmZilla
Warranty includes parts and labour free via the manufacturer
Full protection of property, surfaces, and workspace throughout installation
Handover of your new boiler, including control panel and pressure top-up guide
Removal of redundant pipework and accessories (where necessary)
Removal of any old or unused controls (if applicable)
Sealing of external flue and condensate pipework to the building fabric
Making good of any brickwork around the flue exit
Commissioning of your new boiler for full operation
Balancing of your heating system (if required)
Final tidy-up and removal of all protective coverings
£3,543.00 inc.VAT Fixed Quote