The Most Energy-Efficient Boilers of 2023

In an era where environmental sustainability is paramount and energy efficiency is a priority, the quest for more eco-friendly and cost-effective heating solutions has intensified. 

Halfway through 2023, the spotlight remains fixed on boilers, a cornerstone of residential and commercial heating systems. This article delves into some of our picks for the most energy-efficient boilers of 2023. 

Exploring innovations, advancements, and top contenders in the realm of heating technology, we unveil the boilers that exemplify a commitment to both reducing carbon footprints and enhancing home comfort. 

McRobert’s Most Energy Efficient Boilers of 2023

Here at McRoberts Plumbing & Heating, we offer a fantastic selection of boilers that are designed to increase the energy efficiency of your property. Although it’s hard to narrow down our impressive selection to just a few choices, here are some of our top picks for modern boilers that are great for lowering heating bills, increasing efficiency and reducing your carbon footprint:

Worcester Bosch Greenstar 

Worcester Bosch’s Greenstar boilers are a smart choice for efficient heating, comfort, and long-term value. Worcester is the UK’s most popular boiler brand and has been a Which? Best Buy award winner for over ten years. 

A stand-out model in this collection is the Greenstar CDi. The CDi’s durability and reliability reduce maintenance costs, and its compact design saves space. It also boasts an impressive SAP seasonal efficiency rating of 89.4%.

Another larger model with fantastic energy efficiency is the Greenstar 8000. This sleek and stylish model is designed to fit seamlessly into any space without throwing off the aesthetics. It has a SAP rating of 89.5% and a handy digital display which makes it easy to know exactly what temperature it’s set to and how much heat you’re using. 

Additionally, the Green Star range from Worchester Bosch is compatible with smart home systems, allowing remote control for optimal heating management and efficiency.

Vaillant ecoTEC 

As another recipient of the coveted Which? Best Buy award and a significant presence in the British boiler market, Vaillant stands as a seasoned and esteemed boiler manufacturer, firmly positioned among the top-tier competitors.

You will find many efficient boilers within their range, but their ecoTEC models take the cake for efficiency and sustainability standards. 

The Vaillant Ecotec Plus 428 has an exceptional SAP seasonal efficiency rating of 90.7%. For homes that utilise a traditional open-vented system to provide their heating and hot water, the ecoTEC Plus is the ideal way to deliver exceptional energy-efficient performance.

If you’re looking for an extra-powerful model to meet intense heating demands, the Vaillant ecoTEC plus store Combi Boiler is a great solution. With a hot water delivery rate of up to 20 litres per minute, this boiler is designed to handle big homes and high demands. 

Alpha E-Tec 

Alpha is another great competitor in the current boiler market. They offer an impressive level of quality to rival more established manufacturers but at a budget-friendly price. 

The Alpha E-Tec is the brand’s best-selling combi boiler and the newest inclusion in their lineup. Despite its small size, the E-Tec range has a noteworthy water flow rate of 14.1 litres per minute, fitting conveniently into kitchen cupboards. This feature makes it particularly suitable for small to medium-sized homes.

The E-Tec has been accredited as A-rated for energy efficiency, with a fantastic 93% efficiency. This is the highest grade in the Energy Related Products Directive (ErP), showing its excellent potential for a great return on investment in years to come. 

How To Make A Boiler More Efficient

Boiler efficiency is a measure of how well the equipment works to transfer combustion heat to the heat in steam. Boiler efficiency can therefore be defined as the ratio of the useful heat output to the total energy input.

How efficient your new boiler will be depends on a few factors, including the size of your home and the efficiency of the boiler you’re replacing. For example, if you replace a big boiler with a tiny boiler, it might not be able to heat the space efficiently – even if it’s working to its full capacity. 

When it comes to boiler comparisons, it’s worth keeping in mind that replacing any old boiler with a new, modern model of the right size will help to improve efficiency in your home. 

Additionally, it’s important to note that maintenance is vital to maintaining boiler efficiency. You can buy the most efficient model on the market, but if you don’t have it checked and maintained, it can result in less efficiency and a shorter lifespan. 

We recommend having a minimum of one annual boiler inspection to ensure that your model is working to its full potential and to catch any issues early. 

Enhance Efficiency With Smart Controls 

A smart thermostat is a revolutionary tool that can significantly enhance the efficiency of your home’s boiler and heating system. It offers a range of features and benefits that allow you to have better control over your heating, resulting in improved energy efficiency, comfort, and cost savings.

One of the key advantages of a smart thermostat is its ability to provide precise and customised temperature control. Unlike traditional thermostats that rely on manual adjustments, smart thermostats use advanced sensors and algorithms to learn your heating preferences and daily routines. This enables them to create optimised heating schedules that match your lifestyle, ensuring that your home is warm when you need it and conserving energy when you don’t.

Additionally, Smart thermostats often come with remote access capabilities, allowing you to control your heating system from anywhere using your smartphone or other devices. This means that if your plans change unexpectedly, you can adjust the temperature accordingly to prevent unnecessary heating and energy consumption.

At McRoberts Plumbing & Heating, we offer a selection of dynamic smart thermostats including the Google Nest and the Salus iT500. Contact us today for more information on transforming your property into an efficient smart home!

Get An Energy Efficient Boiler With McRoberts 

We hope that this list of the most energy efficient boilers of 2023 has helped you to narrow down your boiler-search, or given you some upgrade inspiration. 

At McRoberts, we’re happy to provide many efficient boiler choices. We offer brands like ATAG, Worcester, Glow Worm, Alpha, Vaillant, and Grant. We have a wide range of options, including Oil, LPG, Gas, and Combi models, to match different needs.

We believe that energy efficiency should be accessible to everyone. This is why our boilers come with excellent manufacturer guarantees, and a range of 0% financing options to help you split the cost. 

Contact us today to find out more.