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Worcester Bosch Greenstar Highflow 550CDi Combi Gas Boiler

From: £3,579.00

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Worcester Bosch


Greenstar Highflow 550CDi Combi Gas Boiler

Is Condensing


Efficiency Rating


Band Rating

A Rated

LPG Compatible


Standard Warranty

Up to 7 Years

Central Heating Max. Output

30.6 kW


Floor standing

Flow Rate

25 l/min

ERP Rating


Hot Water Max. Output

41.1 kW

Product Description

The Greenstar Highflow 550 CDi gas combi is a large floor standing combi boiler designed for larger properties with two or more bathrooms.

How efficient is the 550CDi Highflow?

With a SEDBUK 2009 efficiency rating of 92% the Greenstar Highflow 550 CDI is a highly efficient boiler and can be used with a wide range of optional mechanical digital wireless and new generation intelligent controls.

Is the output rating suitable for my home?

A central heating output of 30.6 kW and domestic hot water output of 41.1 kW makes this a very powerful boiler suitable for properties with high demands for heating and hot water.

Are any other options available in the Greenstar Highflow range?

If this 550CDi is too powerful for your home then there’s also the smaller 440CDi Highflow. The 440CDi has a lower central heating output of 30.6 kW and same domestic hot water output of 41.1 kW.

Is a combi boiler the right choice for my home?

A combi boiler is a great option for properties with limited space as they don’t need any additional tanks or cylinders. Typically this means they’re unable to meet higher demands for hot water but as Worcester Bosch Highflow combi boilers have such a high flow rate they can meet higher demands of properties with multiple bathrooms.

How long is the warranty period?

Available with a warranty period of 7 years, you’ll be well covered after the installation of a Worcester Bosch Highflow boiler.

What are the key features of the Greenstar Highflow 550CDi?

The extremely high flow rate of 25 litres per minutes will satisfy the most ardent power shower as long as your mains pressure is of equal ferocity.

Additional features include a trusted heat exchanger, condensate pump and simple controls. Plus, this boiler is recommended by the Energy Saving Trust.

How big is the 550CDi Highflow?

The 550CDi measures 850 x 600 x 600mm (hxwxd) similar in size to a regular washing machine and with rollers on the base it should fit nicely under most kitchen top without damaging your floor.