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Worcester Bosch Greenstar 4000 Combi Boiler 25–30kW
£1,372.99
Taxes included.
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30-day return policy
Pickup available at F3 Castings Way, Leafbridge, Castings Way, Lincoln
Usually ready in 24 hours
Supplied to order. Order-in boilers are usually with us in 2-4 working days. We confirm availability and the delivery or collection date when you order.
Worcester Bosch Greenstar 4000 Combi Boiler 25–30kW
The Greenstar 4000 combi: a wide modulation range, full-colour display and quiet running, for small to medium homes with one bathroom. Natural gas or LPG, 25kW and 30kW.
Key points
- 25kW or 30kW, natural gas or LPG
- 724 x 400 x 310mm (H x W x D)
- QuickTap water-saving function and full-colour display
- 9 l/min hot water (25kW, 40°C rise); performs well in low water pressure areas
- EasyControl wireless connectivity, solar compatible
Required with this boiler: a flue kit
Worcester Bosch supplies this boiler without a flue. The Flue kit selector above Add to cart adds the Greenstar 60/100 standard telescopic horizontal flue kit (350-570mm, 7716191082) by default, as a separate line in your basket. Pick the long kit (570-790mm) for thicker walls, or the 60/100 vertical flue kit for a roof exit.
Only choose "I already have this" if you already have a compatible Worcester Greenstar flue kit for this boiler. Check maximum flue lengths and terminal positions in the installation manual.
What's included
- 1 x Worcester Bosch Greenstar 4000 combi boiler in the output and fuel you select, boiler only, as supplied by the manufacturer
- Fixing jig, siphon and hardware pack, as supplied by Worcester Bosch
- No flue included: choose your flue kit with the selector above Add to cart
Specification and price
Dimensions (H x W x D): 724 x 400 x 310mm. ErP A.
| Output | Fuel | Part number | Our code | Price (inc VAT) |
|---|---|---|---|---|
| 25kW | Natural Gas | 7733600371 | PLUMHEAT0393 | £1,372.99 |
| 30kW | Natural Gas | 7733600373 | PLUMHEAT0395 | £1,628.99 |
| 25kW | LPG | 7733600372 | PLUMHEAT0394 | £1,419.99 |
| 30kW | LPG | 7733600374 | PLUMHEAT0396 | £1,589.99 |
Recommended add-ons
Tick these in the add-on list above Add to cart, or follow the links:
- Worcester Bosch Greenstar magnetic system filter: protects the heat exchanger and is part of Worcester's extended guarantee terms.
- Worcester Bosch EasyControl CT200 smart thermostat: app, voice and presence-based control.
- Worcester Bosch Greenstar Comfort+ II RF programmable thermostat: wireless programmer that plugs into the boiler.
- Worcester Bosch Greenstar vertical pre-piping kit: pre-formed vertical pipework behind the boiler (choose the 4000 / Compact version).
- Worcester Bosch 60/100 90° flue bend: for side exits and changes of direction.
- Worcester Bosch 45° flue bends (pair): offsets around obstacles.
Installation and guarantee
Installation must be by a Gas Safe registered engineer (oil: OFTEC registered) and commissioned with the Benchmark checklist. Manufacturer guarantees require registration after installation and annual servicing; extended guarantee terms are the manufacturer's and may require their approved filter/installer.
Worcester Bosch's current UK product page quotes up to a 10 year guarantee when installed by a Worcester Bosch Accredited Installer (Worcester's terms apply).
Delivery and collection
Delivered by pallet/courier (£29.99 per order) or collect free from Leafbridge, Lincoln. Order-in boilers usually 2-4 working days.
Worcester Bosch's Greenstar 4000 combi operating manual, Greenstar 4000 combi ErP data sheet are in the PDF downloads at the bottom of this page.
Shop the Worcester Bosch Greenstar range
- Worcester Bosch Greenstar 1000 combi
- Worcester Bosch Greenstar 2000 combi
- Worcester Bosch Greenstar CDi Compact combi
- Worcester Bosch Greenstar 8000+ combi
- Worcester Bosch Greenstar 8000+ Style combi
- Worcester Bosch Greenstar 4000 system
- Worcester Bosch Greenstar i System Compact
- Worcester Bosch Greenstar 8000+ system
- Worcester Bosch Greenstar Ri regular
- Worcester Bosch Greenstar 8000+ regular
- Greenstar 8000 Life 30kW regular, ex-stock clearance
Flues and accessories: 60/100 telescopic flue kit · vertical flue kit · 90° bend · 45° bends · Greenstar system filter · EasyControl CT200. Browse all boilers and central heating controls.
PDF Downloads
Manufacturer documents for this product.
