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 CDi Highflow is a well-established floor standing combi boiler that is renowned for industry-leading hot water flow rates.

Perfect for larger homes with two bathrooms.

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 online registration 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
Solar Compatible
Wave Compatible
Control Options
Dimensions (mm) height x width x depth 850 x 600 x 600 850 x 600 x 600
Clearances (mm) above, sides, below and front 15, 5, 200,600 (fixed surface) & 25 (compartment door) 15, 5, 200,600 (fixed surface) & 25 (compartment door)
Maximum horizontal flue (mm) 4000 4000
Maximum vertical flue (mm) 6400 6400
Ingress protection rating X4D X4D
Wall mounting jig supplied
Central heating output (kW) 29 30
Max DHW output (kW) 29.5 41.1
Hot water flow rate 35°c ∆T (litres per minute) 20 @ 35°c ∆T 25 @ 35°c ∆T
Minimum inlet pressure (bar) 1.5 1.5
NOx emissions (mg/kWh) 33.3 32.2
Lift weight (kg) 112 112

Related Accessories

Boiler Accessories Part number
Greenstar Comfort wall mounting plate 7 733 600 039
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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