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Worcester Bosch Boilers

The Complete Guide to Worcester Bosch Boilers

Formed in 1962, Worcester Bosch has grown from a small engineering business to one of the leading, heating and hot water manufacturers in the UK. With a reputation for producing reliable, efficient and affordable boilers, this guide will take you through their best models on the market.

Combi Boilers from Worcester Bosch

Combi boilers are fast, becoming the UK’s most popular boiler. Their ability to heat water instantly takes away the need for a hot water cylinder. This makes them ideal for smaller properties or homes that have a low water demand. Worcester Bosch has a range of combi boilers, each with its own unique benefits.

Worcester Bosch Greenstar 25Si

The Greenstar 25Si from Worcester Bosch is a compact combi boiler. This model is a great match for small to medium-sized homes, that only have one bathroom. The flow rate of this boiler is 10.2 litres a minute, meaning the Greenstar 25Si can supply a relatively low water demand through taps and a shower. This boiler comfortably fits into kitchen cupboards, making it an ideal solution for properties that have limited space. The Greenstar 25Si also comes with a five-year warranty, giving you the reassurance that you will be covered if your boiler malfunctions.

The Greenstar i

The Greenstar i is Worcester Bosch’s most popular boiler. With easy to use controls, you can adjust the heating and hot water settings to meet the needs of your property. The outstanding energy efficiency record of the Greenstar i will also allow you to save significantly on your energy bills.

The Greenstar 2000

The Greenstar 2000 is one of Worcester Bosch’s more affordable options. Alongside a quiet operating system, this model has a hot water flow rate of up to 12 litres a minute. This boiler is available in power outputs, 25 and 30kW, with its reliability making it ideal for homeowners and landlords.

System Boilers from Worcester Bosch

System boilers are well suited to larger properties, that have a higher demand for heating and hot water. Like combi boilers, system boilers can heat water internally. However, system boilers also have the advantage of being able to store additional hot water in a cylinder, making them a perfect fit for properties with multiple bathrooms.

The GB162

The GB162 can be installed on its own, or as part of a multi boiler system, making it appropriate for both, large domestic and commercial properties. This model is available in a variety of power outputs, including 50kW, 65kW, 85kW, and 100kW, although, it is still compact enough to be hung up on the wall.

The Greenstar 8000 Life System

The Greenstar 8000 Life System is a highly reliable gas boiler. This boiler’s output makes it a suitable fit for larger homes. It can supply heating to up to 20 radiators while meeting hot water demands for properties with multiple bathrooms. The Greenstar 8000 Life System also boasts an efficiency rating of 94%, meaning this boiler could help to reduce your energy bills.

Regular Boilers from Worcester Bosch

Regular boilers, otherwise known as traditional or conventional boilers, make use of cold water tanks in the loft and hot water cylinders in the airing cupboard. As regular heating systems can store water, they can supply large homes that have a high water demand, although, this storage space takes up a lot of space.

The Greenstar Utility Regular

The Greenstar Utility Regular boiler is available in power outputs up to 70kW, making it suitable for larger homes and commercial properties. This model’s powerful capacity means that it can support a high water demand, with it likely to be installed in a utility or boiler room. This boiler can also be paired with the Greenskies solar panels, helping to save energy and money.


The Greenstar 8000 Life Regular

The Greenstar 8000 Life Regular is a powerful, wall-hung boiler. As part of the unit’s modern design, there is an improved boiler display screen, making it easy to optimise your property’s temperature settings. This boiler comes with the added advantage of a 12-year warranty when it is installed by a Worcester Accredited Installer.


Worcester Bosch Boiler

Homeowners are still able to get a FREE boiler grant or insulation grant via the ECO scheme, which is still available to households that qualify. Warma UK are currently working throughout the UK helping privately owned and rented homes to improve home energy efficiency and save money on rising energy bills.

For more information email –

Or call 03304600065

Apply For Your Government Backed Heating Grant

Following your successful application, we will arrange a free, no obligation survey to ensure the maximum grant is obtained and advise you on the best products to reduce your homes energy usage.

Michael Cornish