Boiler is compatible with long flue lengths (up to 12m with 60/100mm flues) for flexibility of siting and includes a 500ml integrated condensate siphon to reduce the risk of freezing, together with features of the existing Greenstar i. Pre-piping jig with rear piping as standard enables SimpleSwitch to previous Worcester i system models. Fast and easy installation, commissioning and servicing.

Brand Name	Worcester Bosch
Colour	White
Material	Aluminium Silicon Heat Exchanger
Manufacturer Model No	Greenstar 4000
Wear Type	N/A
Type	System Boiler
Certifications Met	N/A
Country of Origin	N/A
Protects From	N/A
Waterproof	N/A
Number of Pockets	N/A
Max. Central Heating Output	18kW
Flue Outlet Position	Top Flue Outlet
Compatible Cylinder	Compatible with Unvented Indirect Cylinders & Twin Coil Cylinders for Solar Compatibility
Compatible with Solar Panels	Compatible with Solar Panels
Manufacturer Guarantee	5 Year Manufacturer’s Guarantee (Registration Required, T&Cs Apply)
BTU	61418.556
Display Type	Backlit LCD Full Colour Display
Boiler Depth	310 mm
Boiler Height	724 mm
Boiler Width	400 mm
CALC - Fuel Type	LPG
Fitting Requirements	Must be Fitted by a Gas Safe Registered Installer
Fixing Jig Supplied	Fixing Jig Supplied
Flue Connection Diameter	60/100 mm
Frost Protection	Frost Protection
Indoor/Outdoor Usage	Indoor
SAP Seasonal Efficiency	90.3 %
Smart Compatibility	Not Smart
Sound Pressure Level	39.3 dBA
Suitable for Underfloor Heating	Suitable for Underfloor Heating
Supplier Manufacturer Helpline	0330 1239669
Temperature Range (Heating)	30-82 °C
Total Product Weight	33.2 kg

Worcester Bosch Greenstar 4000 System Liquefied Petroleum Gas Boiler 18 kW is encompassing features from our range topping 8000 Style, informed by insights from installers and featuring real advances in fixing flexibility, it takes what was the nations favourite boiler and makes it even better.

Brand Name	Worcester Bosch
Colour	None
Material	None
Manufacturer Model No	7733600382
Wear Type	None
Type	Boiler
Certifications Met	None
Country of Origin	None
Protects From	None
Waterproof	None
Number of Pockets	None
Years Guaranteed	7
Width	400mm
Waist Size	aa22cb38gt
Solar Compatible	Yes
Noise Level	45 dB
Maximum Vertical Flue 125mm	21 m
Maximum Vertical Flue 100mm	12 m
Maximum Horizontal Flue 125mm	21 m
Maximum Horizontal Flue 100mm	12 m
Includes	Hot water storage cylinder
Height	724mm
Heat Output	18 kW
Fuel Type	LPG
ERP Rating	A
Depth	310mm
DHW Output Min and Max	3 kW to 18 kW
DHW Output	18 kW
Supplier Part Number	7733600382
Range Description	GS 4000