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Last updated: 16th June, 2023


Which Worcester Bosch Boiler is Best?

Which Worcester Bosch Boiler is Best?

Key takeaways

  • There are three main types of boiler in the UK: a combi, a system and a regular (heat only boiler), all of which Worcester Bosch manufacturer to market leading standards.
  • Worcester Bosch Greenstar boilers are the range topping branch of the brand, efficient, environmentally friendly and powerful.
  • Gas boilers are safe, cost effective and extremely popular.

Choosing the right boiler for your property is crucial to ensure optimal heating efficiency and comfort. Worcester Bosch, a renowned brand in the heating industry, offers a wide range of high-quality boilers designed to suit different property types and heating requirements.

In this blog, we will explore several popular Worcester Bosch boilers and discuss the variables that make certain models well-suited to specific property types. 

At iHeat, we understand the importance of finding the perfect boiler for your home, and we're here to guide you through the process.

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Boiler Types


Combis or combination boilers, combine all components and aspects of a heating system (central heating and hot water production) into one succinct and powerful unit.

Their economic size, quick flow rates and dual functionality means combis are extremely efficient and effective when heating a multitude of property sizes, being best suited for small to medium sized homes with 1-2 bathrooms.


System boilers perform best in homes with a high hot water demand, specifically either larger properties with a higher number of residents or properties with two or more bathrooms. 

System boilers store hot water in a separate cylinder which provides constant flow access but requires additional (minimal) storage space.

System boilers can service multiple flow outlets at one time, meaning no one in a larger home would be standing around waiting for a shower.

Heat Only

A heat only boiler provides the heat for a home's central heating system and hot water cylinder. A heat only boiler is suited to servicing larger properties with multiple bathrooms/radiators or a business premises with a high water demand. 

Heat only boilers do require sufficient installation space within a property, as they use two storage tanks (feed & expansion) as well as the aforementioned hot water cylinder. 

Although a combi is generally considered more space saving, a modern heat only boiler is still compact and can supply more bathrooms with hot running water than a combi can.

Worcester Bosch Greenstar 8000 Lifestyle

The Worcester Bosch Greenstar 8000 Lifestyle range combines cutting-edge technology with sleek design, making it an excellent choice for modern properties. 

This boiler series is available in both combi and system boiler options, providing flexibility based on your heating and hot water needs. 

The Greenstar 8000 Lifestyle range offers high energy efficiency ratings, ensuring reduced energy consumption and lower heating costs. Its advanced features, such as the innovative digital display and compatibility with smart thermostats, allow for easy control and monitoring of your heating system.


Worcester Bosch Greenstar i

The Worcester Bosch Greenstar i series is a popular choice for small to medium-sized properties. With compact dimensions and a range of outputs available, it offers flexibility in installation options. 

The Greenstar i boilers are known for their reliability and high efficiency, helping homeowners save on energy bills. These boilers feature user-friendly controls and compatibility with smart thermostats, allowing you to adjust heating settings effortlessly. 

The Greenstar i series also incorporates advanced technology for improved performance and reduced carbon emissions.


Worcester Bosch Greenstar CDi Classic

If you have a larger property with higher hot water demands, the Worcester Bosch Greenstar CDi Classic range is worth considering. These boilers are available in regular, system, and combi options, catering to different heating system setups.

The CDi Classic boilers deliver powerful performance, ensuring a constant supply of hot water even in larger households. They boast high energy efficiency ratings, advanced controls, and compatibility with smart technologies, making them an ideal choice for modern, energy-conscious homes.


Worcester Bosch Greenstar Si Compact

For properties with limited space, the Worcester Bosch Greenstar Si Compact range offers a space-saving solution without compromising on performance. These compact boilers are designed to fit snugly into small cupboards or tight spaces. 

The Greenstar Si Compact series delivers excellent energy efficiency and reliable heating, making it suitable for apartments, small houses, or properties with restricted installation areas. Despite their compact size, these boilers incorporate advanced features and intelligent controls for efficient heating management.


Finding the best Worcester Bosch boiler for your property depends on several factors, including property size, hot water demands, and installation requirements. 

At iHeat, we offer a wide range of Worcester Bosch boilers to suit various property types and heating needs. Whether you have a small apartment or a larger family home, there is a Worcester Bosch boiler that can meet your requirements. 

Consider factors such as size, output, energy efficiency ratings, and additional features like smart compatibility when choosing the right boiler for your property.

Remember, professional advice from heating experts is essential to ensure you select the most suitable Worcester Bosch boiler for your specific needs. 

Is It Worth Getting A New Gas Boiler?

Despite recent misconceptions that there is a looming ‘ban’ on gas boilers, this is actually incorrect!

It’s still completely legal to buy and install a new gas boiler in any type of property, the supposed ‘ban’ only applies to new build properties after 2025.

There is no current financial penalty to keeping an existing gas boiler in any type of property past 2025, or installing a new gas boiler in any pre existing property past 2025.

New gas boilers blend efficiency, safety, cost effectiveness and versatility, hence their constantly rising popularity.

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