Worcester Bosch Greenstar 8000 F 50kW Combi Boiler (7731600299) is a high-output, floor-standing condensing gas boiler designed for large homes and properties with demanding central heating and domestic hot water requirements. With a stated nominal output of 50kW and a hot water flow rate of approximately 19.8 litres per minute at a 35°C temperature rise, it is designed to support substantial hot water demand. Its floor-standing format makes it an option for suitable utility rooms, plant spaces and replacement installations where the required space and connections are available.
Part of the Worcester Bosch Greenstar 8000 F range, this natural gas combi boiler combines space-heating and domestic hot water functions in one appliance. It features an A-rated ErP space-heating efficiency classification, a stated sound power level of 55 dB(A) and compatibility with suitable Worcester Bosch EasyControl systems. Installer-focused features include a pre-piping roller jig, SimpleSwitch connections and a rear pipework arrangement. Confirm the property's heat loss, hot water demand, gas supply, flue requirements and installation suitability before purchase.
50kW Nominal Output
Natural Gas
Floor-Standing Combi
ErP Class A Heating
At a Glance
Nominal Output
50kW
High-output gas boiler
Hot Water Flow Rate
19.8 L/min
At a 35°C temperature rise
ErP Space Heating
Class A
93% stated efficiency
Dimensions
850 × 600 × 600mm
Height × width × depth
About the Worcester Bosch Greenstar 8000 F 50kW
The Worcester Bosch Greenstar 8000 F 50kW is a floor-standing condensing combination boiler designed to provide central heating and domestic hot water from a single appliance. Its high nominal output and stated hot water flow rate make it a potential option for larger properties with significant heating and hot water requirements. However, the appropriate boiler size depends on the property's calculated heat loss, incoming mains water flow and pressure, and expected hot water demand.
The appliance has a stated central heating output range of 6.3–47.8kW and an ErP space-heating efficiency of 93%. Its floor-standing design has stated dimensions of 850mm high, 600mm wide and 600mm deep. Suitable Worcester Bosch EasyControl systems and other compatible controls can provide additional heating management options. Check the manufacturer's technical documentation to confirm the exact control, flue and installation requirements for model 7731600299.
Key Features
50kW High-Output Performance
Designed for properties requiring substantial central heating and domestic hot water capacity, subject to professional system sizing.
High Domestic Hot Water Flow
Provides a stated flow rate of approximately 19.8 litres per minute at a 35°C temperature rise, with actual delivery dependent on incoming water conditions.
Condensing Boiler Technology
Designed to recover heat from combustion gases, with a stated ErP space-heating efficiency of 93% and Class A space-heating rating.
Space-Saving Floor-Standing Format
The 850 × 600 × 600mm dimensions provide a defined footprint for suitable utility rooms, plant spaces and replacement projects.
Installer-Friendly Connections
The specified pre-piping roller jig, SimpleSwitch connection layout and rear pipework arrangement are intended to assist suitable replacement installations.
Compatible Heating Controls
Compatible with suitable Worcester Bosch EasyControl systems and other approved controls, allowing heating management options to suit the installation.
Important Installation Guidance:
Installation, commissioning and servicing must be carried out by a suitably qualified and legally authorised gas heating professional. Confirm the boiler's suitability using a heat-loss calculation, hot water demand assessment, gas supply requirements, flue configuration, condensate drainage, ventilation where required, electrical provision and manufacturer-specified clearances. Check the compatibility of existing pipework and heating controls before replacing another appliance.
Key Specifications
| Product |
Worcester Bosch Greenstar 8000 F 50kW Combi Boiler |
| Brand |
Worcester Bosch |
| Range / Family |
Greenstar 8000 F |
| Model / MPN |
7731600299 |
| Product Type |
Floor-standing condensing gas combi boiler |
| Fuel Type |
Natural Gas (NG) |
| Nominal Output |
50kW |
| Central Heating Output Range |
6.3–47.8kW |
| Domestic Hot Water Flow Rate |
Approximately 19.8 L/min at ΔT 35°C; approximately 17 L/min at ΔT 40°C |
| ErP Space Heating Efficiency |
Class A / 93% as supplied |
| ErP Water Heating Efficiency |
Class A |
| Dimensions (H × W × D) |
850 × 600 × 600mm |
| Sound Power Level |
55 dB(A) |
| Maximum Horizontal Flue Length |
4m for the specified 60/100mm flue, before bend deductions |
| Maximum Vertical Flue Length |
6.4m for the specified 60/100mm flue, before bend deductions |
| Control Compatibility |
Worcester Bosch EasyControl and other suitable compatible controls |
| Standard Warranty |
7 years as supplied; verify the applicable guarantee for this exact model |
| Extended Warranty Option |
Up to 10 years with eligible Accredited Installer installation, subject to manufacturer terms and conditions |
Installation and Maintenance
The Greenstar 8000 F 50kW includes installer-oriented features intended to help simplify suitable replacement work. Its pre-piping roller jig, SimpleSwitch connections and rear pipework arrangement may be particularly useful when replacing compatible Worcester Bosch Greenstar CDi Highflow or FS CDi floor-standing boilers. The supplied product information also identifies provision for a Worcester Bosch 22mm Greenstar System Filter and compatibility with suitable EasyControl systems.
Before installation, the heating professional should verify the existing pipework layout, required system cleaning and protection, flue arrangement, condensate route and control connections. Regular servicing in line with the manufacturer's instructions helps maintain safe operation and identify potential faults. Any filter, control or replacement accessory should be checked for compatibility with the exact boiler model.
Warranty and Before You Buy
The supplied product information lists a seven-year standard warranty, with the possibility of an extended guarantee of up to 10 years when installed by an eligible Worcester Bosch Accredited Installer. Eligibility, registration requirements and the actual guarantee period depend on the manufacturer's current terms and conditions and the exact product supplied.
Before ordering, confirm that model 7731600299 is appropriate for your property, particularly its high output, natural gas requirement, floor-standing dimensions and domestic hot water demand. Check the required flue components, compatible controls, installation clearances and warranty eligibility with your installer or supplier.
Frequently Asked Questions
What type of boiler is the Worcester Bosch Greenstar 8000 F 50kW?
It is a floor-standing, natural gas condensing combination boiler designed to provide central heating and domestic hot water from one appliance.
What is the hot water flow rate of this 50kW combi boiler?
The supplied specification states approximately 19.8 litres per minute at a 35°C temperature rise and approximately 17 litres per minute at a 40°C temperature rise. Actual flow depends on incoming mains water temperature, pressure, flow capacity and appliance operating conditions.
Is the Greenstar 8000 F 50kW suitable for a large house?
It may suit a large property with substantial heating and hot water demand. However, the correct boiler depends on a professional heat-loss calculation, the property's hot water requirements and the available incoming mains water flow and pressure.
What are the dimensions of the Worcester Bosch Greenstar 8000 F 50kW?
The supplied dimensions are 850mm high, 600mm wide and 600mm deep. Allow for all manufacturer-specified service clearances, pipework and flue requirements when planning the installation space.
Which heating controls are compatible with this boiler?
The supplied information lists Worcester Bosch EasyControl and other suitable controls. Confirm the compatibility of the specific controller, wiring and required accessories before purchasing.
What warranty comes with the Greenstar 8000 F 50kW?
The supplied information lists a seven-year standard warranty and potential coverage of up to 10 years with eligible Accredited Installer installation. The actual guarantee depends on the manufacturer's current terms, installation eligibility and registration requirements.
Can this boiler replace an existing floor-standing Worcester Bosch boiler?
It may be suitable for some replacement projects, particularly where the existing appliance and pipework arrangement are compatible. A qualified heating professional must confirm the connections, flue, gas supply, system requirements and suitability before replacement.
High-Output Heating with the Greenstar 8000 F 50kW
The Worcester Bosch Greenstar 8000 F 50kW Combi Boiler (7731600299) combines high-output heating, substantial domestic hot water delivery and a floor-standing design for suitable large-property installations. With condensing technology, compatible heating controls and installer-focused connection features, it is designed for demanding heating applications. Confirm the boiler size, flue requirements, installation suitability and warranty conditions before ordering.
