Worcester Bosch Greenstar Highflow 440CDI Boiler Review

James Elston
Written by James Elston
Updated on 5th December 2023
Posted on 4th December 2023
Worcester Bosch Greenstar Highflow 440CDI Boiler Review

Worcester Bosch Greenstar 440CDi Highflow combi boiler review

Worcester Bosch Greenstar Highflow 440CDI Boiler Review

Looking for a new combi boiler to improve the heating and energy-efficiency of your property?

Worcester Bosch is one of the best boiler manufacturers on the market, offering a range of heating and hot water systems to suit your needs.

Worcester Bosch is a brand you’ll have almost certainly considered. 

They make several types of boilers but the Greenstar Highflow 440CDI model is undoubtedly one of the more popular units in the manufacturer’s boiler replacement range.

If the 440 CDi boiler doesn’t sound to have enough power for your home, there is the larger version which is the Worcester Greenstar high-flow 550CDi.

Our honest review will confirm all you need to know about the Worcester Bosch Highflow 440 CDi floor-standing combi boiler as to whether it’s a worthy investment. We will also touch upon the key points to the Greenstar 550CDi review in case you need a larger boiler.

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The Worcester Bosch Greenstar Highflow 440CDi Details 

  • Worcester Bosch 440CDi Price as an estimate: £2,081+ £500-£,1000 for installation
  • Band Rating: A
  • Efficiency Rating: 92%
  • ERP Rating: A heat; B water
  • LPG Compatible: Yes
  • Mounting: Floor standing
  • kW Options: 29kW
  • Flow Rate: 20litres per minute
  • Worcester Warranty: 5 years standard which can be extended

The Worcester Bosch Greenstar Highflow 550CDi Details

  • Worcester Bosch 550 CDi Price as an estimate: £2,800 plus £500-£1,000 for installation.
  • Band Rating: A
  • Efficiency Rating: 92%
  • ERP Rating: A heat; B water
  • LPG Compatible: Yes
  • Mounting: Floor standing
  • kW Options: 30.6 kW
  • Flow Rate: 25 litres per minute
  • Worcester Warranty: 5 years standard which can be extended

Don’t be put off by the new boiler cost! Boiler Central offer various boiler finance options and also include boiler installation fees within their price.

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Worcester Bosch Greenstar Highflow 440CDI Overview Worcester Bosch Greenstar Highflow 440CDI Boiler Review

The Worcester Bosch Greenstar Highflow 440CDI is a combi boiler providing a constant supply of hot water. At the same time, its high output flow means it is capable of serving larger homes, including those with two bathrooms without facing pressure issues.

It is manufactured by arguably the most reliable and trusted brand on the market, Worcester Bosch boilers. They have all the top certifications, as well as excellent reviews on Trustpilot.

Furthermore, the Worcester Bosch company is honoured with the Royal Warrant for supplying goods to Her Majesty The Queen, which is a huge seal of approval in itself.

The high flow rate combi boiler also boasts frost protection features to reduce the associated weather threats significantly. This enables homeowners to consider the idea of installing the replacement boiler in the garage or cellar without the Worcester Highflow 440 having problems.

As a combi boiler with 92% efficiency, along with an A rating for heat and B rating for water, the running costs are very low too. This will help to justify the replacement boiler cost

 

Worcester Bosch Greenstar Highflow 440CDI Size & Appearance 

The size of the Worcester Bosch Greenstar Highflow 440CDI is particularly pleasing for homeowners working with smaller sizes.

Worcester Bosch Highflow 440CDi Review

The boiler measures 850mm x 600mm x 600mm, meaning it can fit either on or underneath a kitchen counter with ease.

Likewise, finding space in utility rooms shouldn’t be too hard, particularly as the required clearances are just 5mm to the side and 15mm above.

Worcester Bosch’s 440CDI model (like the more powerful Worcester Bosch 550CDI model) has a white casing, giving the appliance an understated look that will match the interior design of most rooms.

As a combi boiler, it pumps hot water directly from the mains, which means you avoid the need for a hot water storage cylinder or cold water tank like you would need with a regular boiler or system boiler.

Ultimately, the Worcester Bosch 440 CDi is a boiler and isn’t going to be the most attractive feature in the property.

As far as the best combi boilers are concerned, though, the simplistic design that also uses a panel to cover the control panels is as good as it gets from a sense of aesthetic appeal and practicality.

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Worcester Bosch Greenstar Highflow 440CDI Performance 

The Worcester Bosch 440CDI isn’t the most powerful option in the Worcester Bosch Greenstar Highflow range.

The Worcester Greenstar Highflow 550CDI 30kW model which provides 25litres per minute is available as we mentioned before. However, the 440CDI offers more than enough flow to supply the average-sized home.

Worcester Bosch Greenstar Highflow 440CDI Boiler Review

The Worcester 440CDi can simultaneously provide heating as well as water for two rooms (two bathrooms or a kitchen and a bathroom) with relative ease. Modulating control and integrated filling links aid the cause too.

An efficiency rating of 92% ensures that the performance of the gas-powered combi boiler is sure to reduce energy waste—this resulting in monthly savings on energy bills while also promoting a greener home.

Moreover, the Worcester Bosch brand (and, more specifically, this unit) will offer great reliability.

It is not often the Greenstar Highflow 440 occurs problems. If a problem did occur, the Greenstar boilers always come with a manual, or you have Google!

Don’t forget your Worcester Bosch warranty number which comes as a standard warranty. Warranty is great for peace of mind. Always read the terms and conditions to keep your warranty valid.

The combi boiler unit won’t only continue to work, but it’ll perform as expected while the addition of a Greenstar System Filter can prevent contaminations.

Worcester Bosch Greenstar Highflow 440CDI Boiler Review

Regardless of which control systems are used, the Worcester Bosch Greenstar Highflow 440CDI model also notifies you to any faults with immediate responses while also offering clear indications of what the problem is.

The Worcester Highflow removes the guesswork and can allow users to fix basic errors while also making Gas Safe heating engineer diagnostics far quicker.

In addition to the standard two-year warranty, an official Worcester Bosch installation can extend the warranty to seven years. By upgrading and paying extra, you will have a heating engineer on hand in case any problems occur.

When supported by annual boiler servicing, the investment can be rewarded with years of reliable performance.

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Worcester Bosch Greenstar Highflow 440CDI Controls 

No two homeowners are the same, and finding a boiler that suits your personal preferences as well as the family’s needs is essential.

The 440CDI can be configured to use one of several control options to match your requirements.

The following solutions are available for the Worcester Greenstar Highflow 440 CDi:

  • Mechanical Controls – a traditional analogue dial can be particularly useful for older users that are used to this style or may have reduced dexterity. With clear values, setting the boiler to the desired modes and outcomes is a very simple task.
  • Comfort Controls or Sense Controls – both use digital displays while the former has a dial thermostat while the latter uses a room thermostat. This can be programmed or changed as you desire.
  • Easy Controls – connects the digital display to your smartphone or device through the use of the Bosch App, enabling you to control the boiler from anywhere in the world – although it’ll probably be from the sofa. Worcester Bosch Greenstar Highflow 440CDI Boiler Review

The Worcester Bosch Greenstar Highflow 440CDI boiler will always have a thermostat and a timer or programmer. It’ll also have at least one of the following:

  • Control with a Load Compensation feature
  • Control with Weather Compensation feature
  • Control which is “smart.”
  • Flue Gas Heat Recovery Device
Worcester Bosch Greenstar Highflow 440CDI Boiler Review

All of the controls will allow you to take care of the various features that the 440CDI combi boiler has to offer.

 

 

Our Verdict on the Worcester Bosch Highflow

If you are in the market for a new combi boiler, Worcester Bosch is always a good place to start.

The Worcester bosch boilers are incredibly reliable, the performance is a high standard, and compact design makes the 440CDI or 550CDI a great option.

The choice of control types and range of advanced features for increased efficiency and comfort only further add to its appeal.

When opting or this 92% efficiency combi boiler, there is no question that it should be installed by a professional plumber or accredited Bosch technician.

Worcester Bosch Greenstar Highflow 440CDI Boiler Review

When you have it installed correctly, it can provide years of service just make sure you pay for the cost of a boiler service every year too.

While it is an expensive model, it’s well worth the investment – unless you live in a large home with multiple bathrooms and rooms that it requires a more powerful model such as 550CDI instead.

Don’t be put off by the price! We have some great boiler deals and the best combi boiler to suit everyone. 

Boiler Central offer various finance options and also includes installation fees within their price.

 

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Written by
James Elston
James Elston Director Of Boiler Central
Posted on: 4th December 2023

James Elston is our resident boiler replacement and heating expert here at Boiler Central. With over 20 years experience in the boiler installation industry, James ensures that he knows everything there is about our Gas Safe boiler installations, energy saving and home heating solutions. This can be from simply procuring the latest best combi boilers, to reviewing and ensuring that Boiler Central maintains the highest standards across our boiler installation company.

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