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
Manufacturer Model No	Greenstar 4000
Max. Central Heating Output	21kW
Display Type	Backlit LCD Full Colour Display
Energy Rating (Heating)	A
BTU	71654.982 BTU
Boiler Height	724 mm
Boiler Width	400 mm
Boiler Depth	310 mm
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)
SAP Seasonal Efficiency	89.6 %
Sound Pressure Level	39.3 dBA
Temperature Range (Heating)	30-82 °C
Total Product Weight	33.2 kg

Worcester Bosch Greenstar 4000 system liquified petroleum gas system boiler is a 21 kW wall mounted condensing system boiler with improved efficiency for an ErP A rating. This high performance wall mounted boiler is user friendly and offers straight forward servicing.

Brand Name	Worcester Bosch
Colour	None
Material	None
Manufacturer Model No	7733600384
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	aa27ci14gt
Noise Level	44 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
Height	724mm
Heat Output	21 kW
Fuel Type	LPG
ERP Rating	A
Depth	310mm
DHW Output Min and Max	3 kW to 21 kW
Supplier Part Number	7733600384
Range Description	GS 4000