The Best System Boilers 2023

Do you have a System Boiler that needs to be replaced this year? If so, continue reading. The latest System Boilers from The UK’s best Boiler manufacturers are featured in this guide.

There’s a System Boiler featured to suit all budgets and all types of homes. 

System Boilers generally outperform Combination Boilers when it comes to supplying medium to large-sized homes with hot water, especially those with more than one bathroom.

A System Boiler includes a hot water storage cylinder which allows multiple hot taps and showers to be used simultaneously. In addition, the cylinder ensures there is always enough hot water to supply your household.

The System Boiler has replaced the traditional Regular Boiler in most properties. Although Regular Boilers are suitable for supplying large amounts of hot water, they are bulky systems that require water tanks and a hot water cylinder. The System Boiler provides ample hot water while taking up less space.

Modern System Boilers also boast excellent energy efficiency. Here are our favourite System Boilers for 2023.

Best Premium System Boilers 2023

Worcester Bosch Greenstar 8000 Style

The Worcester Bosch Greenstar 8000 Style is the smartest-looking System Boiler on the market, with White and high gloss black versions available.

The top-of-the-range Boiler features a touchscreen display in full colour with the ability to diagnose, find faults, and commission quickly, thanks to detailed text displays and an intuitive menu structure. Searching for fault codes in manuals is now a thing of the past.

• A rated energy efficiency
• 30-35 kW
• Guarantee of up to 12 years

Baxi Platinum Plus 

Utilising top-quality brass components, the Baxi Platinum Plus is made in the UK and is an excellent Boiler for homes that require a lot of hot water.

An Adey Micro2 magnetic system filter is included. For the protection of the Boiler and central heating system.

Other features include a built-in frost thermostat and easy front access to the working components

• A rated energy efficiency
• 32 kW
• Warranty of up to 10 years on parts and labour

Vaillant ecoTEC exclusive with Green iQ system 

The ecoTEC exclusive is Vaillant’s top-of-range System Boiler with a Green iQ mark that ensures the highest level of energy efficiency.

A unique feature of the ecoTEC exclusive boiler is its ability to adapt itself, providing you with precisely the right level of heat all the time. Cost-effective to run with minimal waste and low fuel consumption.

The Boiler is vSMART heating control compatible so that you can set and adjust it from your smartphone.

A sustainably made Boiler that is 85% recyclable

• A rated energy efficiency 
• 27kW 
• Guarantee of up to 10 years

Best Mid-Range System Boilers 2023

Baxi 600 

The Baxi 600 is a versatile System Boiler available in three sizes to serve all types of homes with multiple bathrooms or higher-than-usual hot water demand.

The Baxi 600 is made in the UK using top-quality brass components and features an LCD. The Boiler is lightweight and compact and will fit into a kitchen cupboard. The unit is simple to install, with easy front access for servicing.

• A rated energy efficiency
• 15kW, 18kW and 24kW
• Up to 7-year labour and parts warranty

Glow Worm Energy

With a range of outputs, the Energy System Boiler is ideal for most homes.

With a Stylish and modern design, quiet operation and controls that are easily accessible, the interface is easy to use.

The heat exchanger is made of automotive-grade aluminium, ensuring years of trouble-free use. In addition, the Boiler offers easy installation with a rear or top flue.

• A rated energy efficiency
• 12,15,18,25 or 30 kW
• 7-10 Guarantee

Ideal Logic+ System

Ideal Logic+ System Boilers have Quiet Mark accreditation (one of few UK Boilers to achieve this status). As a result, you won’t hear it running.

The Ideal Logic+ is made in the UK and is approved by the Energy Saving trust. An excellent option for reliability and energy efficiency for those after a mid-range System Boiler.

The Boiler features an easy-to-use LCD display and frost protection.

• A rated energy efficiency
• 15,18,24 or 30 kW
• 7-year warranty with a 10-year warranty on the heat exchanger

Best Budget System Boilers 2023

Glow-Worm Ultimate 3 

The Glow-Worm ultimate 3 is constructed from automotive-grade aluminium providing high performance at a great price. In addition, the Boiler features An energy-saving Grundfos modulating pump and an easy-to-use LCD display that an app on your smartphone can control.

• A rated energy efficiency
• 25 kW
• A five-year parts and labour warranty, with an extension option

Baxi Megaflow

The Baxi Megaflow offers high performance at a fair price. The Boiler is constructed in the UK from high-quality brass components.

The Boiler itself is easy to fit and features easy-to-use controls. Available in five sizes to suit all households.

• A rated energy efficiency
• 15, 18, 24, 28 or 32
• Upto 7-year warranty

Interested In A New System Boiler?

We hope you have found this guide helpful. If you’re interested in having a new System Boiler installed and live in the Essex area, we would like to offer you a free, no-obligation survey and quote undertaken by one of our experienced, friendly engineers.

Please Contact Us for more details.