Worcester Greenstar 4000 24kW System Boiler
The Worcester Greenstar 4000 24kW System Boiler is a reliable and efficient choice for medium to large homes that use a stored hot water cylinder. Designed to fit neatly into modern heating systems, it offers strong performance while keeping running costs low.
Thanks to its compact, lightweight design, installation is straightforward and flexible, making it ideal for a variety of home layouts. The built-in pump and expansion vessel also help reduce installation time and clutter within the heating system. For added convenience, the boiler is compatible with a wide range of optional heating controls, including smart thermostats, so homeowners can enjoy more comfort and better energy management.
Key Features
Compact, space-saving design
Built-in pump and expansion vessel for easier installation
Optional plug-in diverter valve
Compatible with a wide selection of optional controls
Ideal for medium to large homes using a hot water cylinder
Technical Information
Manufacturer: Worcester Bosch
Model: 4000
MPN: 7733600385
SKU: 79148
GTIN: 4057749856746
Product Type: Gas System Boiler
Performance:
CH Output: 24kW
CH Output (BTU): 81,000
ErP Heating Rating: A Rated for Heating
Dimensions:
Height: 724mm
Width: 400mm
Depth: 310mm
Weight:
Gross Weight inc Packaging: 33.2kg
Warranty:
7 Years (Subject to manufacturer’s T&Cs)
FAQs
Is the 24kW model suitable for my home?
The 24kW output is suitable for **medium to large homes**, especially if you have multiple radiators and rely on a stored hot water cylinder.
Do I need a hot water cylinder with this boiler?
Yes. As a **system boiler**, it works alongside a hot water cylinder to deliver stored hot water more efficiently.
Can this boiler work with smart thermostats?
Absolutely. The Greenstar 4000 range supports **a wide range of optional and smart heating controls**, allowing better efficiency and remote access.
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