Worcester Bosch Greenstar 8000+ 35kW System Gas Boiler
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Worcester Bosch Greenstar 8000+ 35kW System Gas Boiler
(Approx. 3-5 working days)


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The Worcester Bosch Greenstar 8000+ System Boiler is a high capacity, wall mounted gas fired condensing boiler designed for properties with significant heating and hot water demands. As a system boiler, it works with a separate hot water cylinder, making it suitable for homes with multiple bathrooms and high simultaneous water usage.
This 35kW model provides a central heating output of 35 kilowatts and achieves an ErP A rating with a seasonal efficiency of around 94%. It incorporates key components such as the pump and expansion vessel within the unit, reducing installation complexity compared to regular boilers. The 8000+ range introduces enhanced connectivity, allowing wireless integration with smart thermostats for remote control and energy management.
The boiler features a full colour touchscreen display for intuitive operation and supports the Intelligent Filling System, which automatically maintains system pressure. Dimensions are 780mm (H) x 440mm (W) x 365mm (D), and the appliance weighs approximately 40kg. It is hydrogen ready (20% blend) and available in a white finish.
- 35kW central heating output for large heating loads
- ErP A-rated efficiency with 94% seasonal performance
- Dimensions: 780mm H x 440mm W x 365mm D
- Built in pump and expansion vessel for simplified installation
- Wireless connectivity with Bosch EasyControl and smart thermostats
| Brand | Worcester |
|---|---|
| Width | 440 mm |
| Depth | 365 mm |
| Display Type | Full Colour Touchscreen |
| Flue Included | No |
| Fuel Type | Gas |
| Heating Type | System Gas Boiler |
| Height | 780 mm |
| Model Name / No | 7736702591 |
| Weight | 40 kg |
| Colour | White |
| Mount Type | Wall Mounted |
| Residential Warranty | Up to 12 years (with accredited install) |
| Sound Power Level (dB A): | 53 dB |
- Delivery cost will be calculated at checkout once delivery address has been confirmed
- Delivery lead times are an estimate only
- Delivery drivers will always prioritise safety over convenience when offloading materials
- Bagged products such as cement and plaster cannot be returned once opened
- Jumbo bags cannot be returned once delivered
- All other goods may be returned within 3 months with a proof of purchase provided
- Chargeable pallets may be returned for a full refund
- All online pricing is specific to Northern Ireland only. Pricing for our Isle of Man branch may vary.
The Worcester Bosch Greenstar 8000+ System Boiler is a high capacity, wall mounted gas fired condensing boiler designed for properties with significant heating and hot water demands. As a system boiler, it works with a separate hot water cylinder, making it suitable for homes with multiple bathrooms and high simultaneous water usage.
This 35kW model provides a central heating output of 35 kilowatts and achieves an ErP A rating with a seasonal efficiency of around 94%. It incorporates key components such as the pump and expansion vessel within the unit, reducing installation complexity compared to regular boilers. The 8000+ range introduces enhanced connectivity, allowing wireless integration with smart thermostats for remote control and energy management.
The boiler features a full colour touchscreen display for intuitive operation and supports the Intelligent Filling System, which automatically maintains system pressure. Dimensions are 780mm (H) x 440mm (W) x 365mm (D), and the appliance weighs approximately 40kg. It is hydrogen ready (20% blend) and available in a white finish.
- 35kW central heating output for large heating loads
- ErP A-rated efficiency with 94% seasonal performance
- Dimensions: 780mm H x 440mm W x 365mm D
- Built in pump and expansion vessel for simplified installation
- Wireless connectivity with Bosch EasyControl and smart thermostats
| Brand | Worcester |
|---|---|
| Width | 440 mm |
| Depth | 365 mm |
| Display Type | Full Colour Touchscreen |
| Flue Included | No |
| Fuel Type | Gas |
| Heating Type | System Gas Boiler |
| Height | 780 mm |
| Model Name / No | 7736702591 |
| Weight | 40 kg |
| Colour | White |
| Mount Type | Wall Mounted |
| Residential Warranty | Up to 12 years (with accredited install) |
| Sound Power Level (dB A): | 53 dB |
- Delivery cost will be calculated at checkout once delivery address has been confirmed
- Delivery lead times are an estimate only
- Delivery drivers will always prioritise safety over convenience when offloading materials
- Bagged products such as cement and plaster cannot be returned once opened
- Jumbo bags cannot be returned once delivered
- All other goods may be returned within 3 months with a proof of purchase provided
- Chargeable pallets may be returned for a full refund
- All online pricing is specific to Northern Ireland only. Pricing for our Isle of Man branch may vary.


