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Worcester Bosch Greenstar 4000 System Gas Boiler (Natural Gas, ErP) (White) 12kW – 7733600377

Worcester Bosch Greenstar 4000 System Gas Boiler (Natural Gas, ErP) (White) 12kW – 7733600377

SKU: 7733600377 Part Number: 7733600377
Regular price £973.31 Ex. VAT
Sale price £973.31Ex. VAT
Regular price £1,023.31
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Product Description

7733600377 | Worcester Bosch Greenstar 4000 12kW System Gas Boiler (White)

The Worcester Bosch Greenstar 4000 12kW is an ultra-efficient system boiler designed for small homes or apartments with lower heating demands. It features a user-friendly full-colour digital display, quiet performance, and a compact casing suitable for kitchen cupboards. With a high modulation ratio, it adjusts performance for maximum efficiency and comfort, and it is compatible with smart home controls.

  • 12 kW output ideal for small central heating systems
  • Full-colour touchscreen for easy operation and diagnostics
  • Operates at ultra-quiet 42 dB(A) – suitable for indoor living spaces
  • Compatible with Bosch EasyControl and other smart thermostats
  • Backed by a 7-year guarantee, extendable up to 10 years with accredited installation

Technical Specification

depth 310 mm
guarantee 7-10 Years
height 724 mm
length 310 mm
model Greenstar 4000 12kW
pack size 1
range Greenstar 4000
supplier part number 7733600377
type System Boiler
type x Heat-Only Central Heating (No DHW Supply)
width 400 mm
boiler system Sealed System – Requires separate hot water cylinder
color pattern White
energy efficiency class ErP Class A (Heating)
material Aluminum
mounting type Wall-Mounted
power source Natural gas