Worcester Bosch has built an enviable reputation as one of the premier manufacturers of combi, system, and regular boilers in the U.K.
Worcester Bosch’s boiler range has won the Which? Best Buy award for an incredible 11 years. Worcester Bosch are innovators and the recent addition of the stylish LifeStyle boiler range is a statement about where boiler design needs to be.
Worcester Bosch Boilers
Worcester Bosch offers a wide range of combi, system, and regular boilers. If you aren’t sure what boiler type you have, then you can read our blog covering just that so you know what you’re looking for.
Once you know what boiler type you’re looking for, you can use the WarmZilla boiler comparison function below. Just select up to 3 boilers you want to compare and you’ll be able to compare key stats side by side to see which boiler is best for you.
You can also take the WarmZilla survey, by answering a few simple questions about your home we will be able to recommend suitable boilers for your heating and hot water requirements. You can get a quote on a new boiler in just a few minutes without adding any personal details.
WarmZilla sells Worcester Bosch boilers because Worcester Bosch boilers meet our high standards of energy efficiency, performance, reliability, and aftercare.
WarmZilla offers a range of gas condensing boilers from Worcester Bosch including system, combination, and regular boilers.
We carry all of the popular Worcester Bosch boiler models including the ‘budget’ option of the Worcester Bosch 2000 series, the mid-range Worcester Bosch 4000 series and the premium Worcester Bosch LifeStyle range.
A Worcester Bosch boiler sold by WarmZilla comes with everything you need to get your boiler up and running.
Our packages include Gas Safe installation, system filter, system cleanse, inhibitor, wireless controls, up to 12 years guarantee, any flues or extension kits you may need; plus, if your condensate or gas pipes require upgrading – that’s included in your fixed price Worcester Bosch quote too!
You can also upgrade your wireless controls to a choice of smart thermostats and you can add radiators to your order – all your heating requirements with one easy online purchase.
The price of a Worcester Bosch boiler depends on the model you choose and the kW output of the model you require.
Other factors that will affect the cost of your Worcester Bosch boiler are whether you require your new boiler to be moved from where it used to be, and whether you require a horizontal flue or vertical flue. Other than that, your price is fixed – get a quote now and find out exactly how much your new Worcester Bosch boiler will cost, in a few minutes.
Prices of a Worcester Bosch boiler start from £1649 when purchased outright or from £10.86 per month when buying your Worcester Bosch boiler on finance.
All Worcester Bosch boiler is required to be serviced annually to ensure continued efficiency and safety.
Your Worcester Bosch boiler should ideally be serviced annually, around the same date as you had it installed.
Failing to service your boiler annually can not only affect your safety but also affect your boiler warranty/guarantee.
A typical service consists of:
– Ensure the gas pressures are correct to MI’s
– Inspect electrical connections
– Flue inspection
– Combustion testing to MI’s
– Inspect Condensate line
– Remove any parts that require cleaning (if App)
– Carry out a tightness test (if App)
– Leave a service sheet with the results
– Inform you of any issues and the solution to rectify
A boiler service typically takes up to 1 hour. It’s during this time that the service engineer will identify any defects from the tests and inspections above.
This will then allow anything to be put right or improved for the continued high standards you’d expect to see from your boiler.
The lifespan of your boiler depends on how well you take care of it during its working life. By having your boiler serviced annually, it will improve efficiency and extend its life, sometimes beyond its expected demise, which is typically 10-15 years. This will also minimise expensive boiler repairs that we all try to avoid!
How does servicing your boiler help its efficiency?
Your boilers efficiency will naturally decline over time because of debris build-up in the system. This build-up can stop your boiler from working at its best. If the debris is left and not flushed out of your system, it can cause damage to your boilers system.
Getting your boiler annually serviced can also help to reduce your heating costs, prevent your boiler from breaking down, increase the boilers reliability, extend the life of your boiler and validate your guarantee.
Thanks to its efficiency rating of 93% and an ErP A-rating for central heating, this system boiler is not only highly reliable but could potentially help you to reduce your energy bills.
With an output level of 9kW for central heating, this is the least powerful system boiler in its range. If your home requires a higher demand, the Worcester Bosch Greenstar i system range has other outputs of 12kW, 15kW, 18kW, 21kW, 24kW, 27kW and 30kW available.
Although the Worcester Bosch Greenstar i system boilers have been designed to be compact and lightweight, for easy installation inside your standard kitchen cupboard, it is important to remember that you will need room in your home for an additional hot water storage cylinder. This is because, with system boilers, the water is heated in the boiler and then stored in a hot water cylinder until needed. System boilers are ideal for homes with a high demand for instant hot water.
The Worcester Bosch Greenstar 12i system gas boiler is a highly efficient boiler with an energy efficiency rating of 94% and an ErP A-rating for central heating, meaning that this boiler could potentially help to reduce your energy bills.
With an output of 12kW, this system boiler is ideal for homes with up to 10 radiators. For homes with a higher demand for central heating and hot water, the Worcester Bosch Greenstar 15i, 18i, 21i, 24i, 27i and 30i system boilers are available.
The Worcester Bosch Greenstar 12i has been designed to be compact and lightweight, meaning that installation should be simple. Thanks to its size, this system boiler can be wall-mounted inside your standard kitchen cupboard, out of sight, out of mind.
It is important to note that you will need space for an additional hot water storage tank, which is typically installed in an airing cupboard of your home. If space is limited in your home, a combi boiler may be a better option.
With an output of 15kW, this system boiler is suitable for a home with up to 10 radiators and a bathroom. For homes with a higher demand for central heating and hot water, the Worcester Bosch Greenstar i system range has outputs of 18kW, 21kW, 24kW, 27kW and 30kW available. The Worcester Bosch Greenstar 9i and 12i are also available for homes with lower demand.
When purchasing a new or replacement system boiler, you will need to accommodate for an additional hot water cylinder which is typically located in an airing cupboard or a similar-sized space in your home. For this reason, if space is limited in your home, a system boiler may not be suitable. The Greenstar i range is also available as a combi boiler for smaller homes.
The Worcester Bosch Greenstar 18i System Boiler has an efficiency rating of 94% and an ErP A-rating for central heating, which could potentially help you to lower your energy bills.
With an output of 18kW, this model is ideal for homes with up to 15 radiators and a bathroom. For homes with a higher demand for central heating and hot water, the Worcester Bosch Greenstar 21i, 24i, 27i and 30i are available. However, the Greenstar i range has an option for everyone, with the 9i, 12i, and 15i also available for homes with lower demand.
It is important to note that purchasing a system boiler, that you will need space in your home for an additional hot water cylinder. This is where your hot water will be stored once heated. For this reason, a system boiler is not recommended for homes with limited space. However, if space is not an issue in your home, a system boiler is perfect for properties with a high demand for instant hot water.
The Worcester Bosch Greenstar i range has become a very popular choice when it comes to a new or replacement system boiler. With an output range of between 9kW and 30kW, there is an option for everyone. However, it is important to remember that you will also need a hot water cylinder tank when your system boiler is installed. This will store your hot water for when it’s needed.
For this reason, system boilers are not recommended for homes with limited space. On the plus side, the Worcester Bosch Greenstar i range is also available as a combi boiler for smaller homes.
This system boiler is perfect for homes with up to 15 radiators and a bathroom. If you are looking for a boiler that meets a higher demand for central heating and hot water, the Greenstar 24i, 27i, or 30i are available. If your home has lower demand, there are output levels of 9kW, 12kW, 15kW and 18kW that are also available. For medium-sized homes, this is a good choice of boiler.
The Worcester Bosch Greenstar ‘i’ system gas boiler range is one of the most popular from Worcester Bosch, this is thanks to its compact size, allowing it to fit neatly into a standard kitchen cupboard. Despite its size, the Worcester Bosch Greenstar 24i system boiler packs a punch.
It is important to note that you will need to purchase and install a hot water cylinder alongside your boiler unit, in order for the hot water to be stored for when it’s needed. For this reason, if your home has limited space, the Worcester Bosch Greenstar i combi range is recommended instead.
The Worcester Bosch Greenstar 24i has an output of 24.6kW for central heating, ideal for medium size homes with up to 15 radiators and a bathroom. If you feel that your home has a higher demand for central heating and hot water, the Greenstar 27i and 30i are also available. Meanwhile, for smaller homes with lesser demand, the Greenstar 9i, 12i, 15i, 18i, and 21i are available.
Thanks to its compact and lightweight design, this system gas boiler can be easily wall-mounted into the space of a standard kitchen cupboard.
With a kW output of 27kW, this model is ideal for homes with up to 15-20 radiators and a main bathroom. For homes with a higher demand for central heating and hot water, the Worcester Bosch Greenstar 30i is available. However, the Greenstar i range has an option for everyone, with outputs of 9kW, 12kW, 15kW, 18kW, 21kW and 24kW also available for homes with lesser demand.
It is important to note that purchasing a system boiler, that you will need space in your home for an additional hot water cylinder. This is where your hot water will be stored once heated. For this reason, a system boiler is not recommended for homes with limited space. However, if space is not an issue in your home, a system boiler is perfect for properties with a high demand for instant hot water.
The Worcester Bosch Greenstar 30i is the most powerful system gas boiler in its range, with an output of 30kW, which is perfect for homes with up to 20 radiators and two bathrooms.
Many smaller homes will not have this demand for central heating and hot water. For homes with lesser demand the Worcester Bosch Greenstar i range includes outputs of 9kW, 12kW, 15kW, 18kW, 21kW, 24kW and 27kW.
Thanks to its efficiency rating of 92% and an ErP A-rating for central heating, this system boiler is not only highly reliable but could potentially help you to reduce your energy bills.
Although system boilers are ideal for homes with a high demand for instant hot water, it is important to remember that you will need room in your home for an additional hot water storage cylinder. This is because, with system boilers, the water is heated in the boiler and then stored in a hot water cylinder until needed.