Greenstar CDi Highflow Greenstar CDi Highflow Greenstar CDi Highflow
Greenstar CDi Highflow Greenstar CDi Highflow Greenstar CDi Highflow
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Greenstar CDi Highflow overview

Our Greenstar Highflow CDi combi is a well-established floor-standing combi boiler that is renowned for their industry-leading DHW flow rates of up to 25 litres/min.

Designed to make installation as straight forward as possible, this boiler is supplied with a pre-plumbing jig and has a wheel-in tray which allows the appliance to slide into place.

Download our easy guide, which covers everything you need to know about the Greenstar CDi Highflow

Features & Benefits

Floor mounting jig providing pre-plumbing and rear piping as standard
Fits underneath a standard kitchen worktop
Interior space optimised for serviceability
Tried and tested heat exchanger used in our popular Greenstar CDi Classic
Plug & play optional Worcester controls available
Simple boiler control knobs with digital display and one button commissioning mode
Engineer menus to optimise commissioning and support servicing
Built-in condensate pump
Scan and register the boiler using our free MyWorcester App

Technical Details

Greenstar Highflow 440CDi Greenstar Highflow 550CDi
Part number 7 731 600 098 7 731 600 100
ErP Efficiency Rating
B

A

B

A

ErP Data Sheet ErP Data Sheet ErP Data Sheet
LPG model available
EasyControl Compatible
Solar Compatible
Control Options
Central heating output (kW) 29.2 30.6
Dimensions (mm) height x width x depth 850 x 600 x 600 850 x 600 x 600
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Related Accessories

Boiler Accessories Part number
Greenstar Comfort wall mounting plate 7 733 600 039
EasyControl Adapter 7 736 701 560
Flashing Kits Part number
Flat roof flashing kit (100mm & 125mm dia.) 7 716 191 090
Pitched roof flashing kit (100mm & 125mm dia) 7 716 191 091
Flue Part number
1000mm extension kit (100mm dia.) 7 716 191 083
90º bend (100mm dia.) 7 716 191 084
Support bracket kit (100mm dia) 7 716 191 092
Short flue extension, 220mm (100mm dia) 7 716 191 133
60/100mm (x2) 45º bends 7 716 191 085
Horizontal flue kit (125mm dia.) 7 716 191 1572
Vertical BF kit (100mm dia.) 7 716 191 1562
Vertical BF kit (125mm dia.) 7 716 191 1582
RS telescopic flue kit (100mm dia.) 7 716 191 1552
Flue Connector Vertical 60-100 7 716 191 164
Flue Connector Vertical 80-125 7 716 191 165
1000mm extension (125mm dia.) 7 719 003 666
45 degree bend (100mm dia.) 7 719 003 665
90º bend (125mm dia.) 7 719 003 664
Plume Part number
45º bend (x2) 7 716 191 089
90º bend 7 716 191 088
Plume management kit (60mm dia) 7 716 191 086

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