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	15kW
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	51182.13
Display Type	Backlit LCD Full Colour Display
Energy Rating (Heating)	A
Flue Outlet Position	Top Flue Outlet
Frost Protection	Frost Protection
LPG Conversion Kit Supplied	LPG Conversion Kit Available Separately
SAP Seasonal Efficiency	89.7 %
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

Brand Name	Worcester Bosch
Colour	None
Material	None
Manufacturer Model No	7733600380
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	aa37cj13fw
Noise Level	43 dB
Height	724mm
Heat Output	15 kW
Fuel Type	LPG
ERP Rating	A
Depth	310mm
Supplier Part Number	7733600380
Range Description	GS 4000