Worcester Greenstar 8000+ 35kW System Boiler
The Worcester Greenstar 8000+ 35kW System Boiler is a powerful, high-efficiency heating solution designed for medium to large homes with higher heating and hot water demands. As part of Worcester Bosch’s premium Greenstar 8000+ range, it combines outstanding performance with modern styling, quiet operation and advanced control options.
Because it's a system boiler, it works alongside a separate hot water cylinder but doesn’t require a cold-water tank in the loft. This makes installation more flexible while still providing strong mains-pressure hot water to taps and showers. With condensing technology, an A-rated efficiency label and compatibility with smart thermostats, this boiler is designed to deliver comfort, convenience and long-term energy savings.
Key Features
High 35kW output — ideal for medium to large homes with multiple radiators or higher heating needs
System boiler setup — uses a hot water cylinder but no loft tank, offering cleaner and more compact installation
Condensing technology captures and reuses heat for improved efficiency
A-rated energy performance, helping reduce heating costs and environmental impact
Smart thermostat compatible, including Bosch EasyControl for remote heating management
Modern, sleek boiler design, perfect for style-conscious homes
Quiet operation, making it suitable for installation in living spaces
Technical Specifications
Manufacturer: Worcester Bosch
Model: 8000+
MPN: 7736702591
SKU: 94067
GTIN: 4069143014448
Product Type: Gas System Boiler
Warranty: 8 Years (subject to T&Cs)
CH Output: 33 kW / 114,989 BTU
ErP Heating Rating: A Rated
Dimensions: 780mm (H) × 440mm (W) × 365mm (D)
Weight: 46kg (54kg gross)
FAQs
Is the 35kW model suitable for my home?
Yes — this output level is ideal for medium to large homes, especially those with multiple radiators or higher heating requirements.
Do I need a hot water cylinder with this boiler?
You do. As a system boiler, it works with a hot water cylinder but does not need a cold-water tank, offering good mains-pressure hot water.
Can I control this boiler remotely?
Absolutely. It’s compatible with smart controls such as Bosch EasyControl, Hive and Nest, allowing you to manage heating from your smartphone.
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