What are energy efficient boilers?
Energy-efficient boilers are advanced heating systems designed to optimise energy usage while minimising waste. Whether you opt for a system boiler or a combi boiler, these units offer efficient heating and hot water solutions for your home.

What makes a boiler energy efficient?
The efficiency of a boiler refers to how much of the energy it consumes is actually converted into heat for your home. Every new boiler available in the UK today is rated at least 90% efficient, earning an A-rating. This means that 90% of the energy consumed is converted into heat, with only 10% lost as waste.
In contrast, older boilers, manufactured to different standards, can have efficiency ratings as low as G, operating at as low as 60% efficiency. This highlights the significant potential for savings by upgrading to a more efficient model.
Benefits of an energy efficient boiler
Upgrading to an energy efficient boiler could save a typical household up to 23% on their annual gas bills.
Choose between system boilers, ideal for larger homes, or combi boilers, perfect for smaller properties with limited space.
Enjoy consistent heating and hot water supply, tailored to your home's size and usage patterns.
By maximising heat production and minimising waste, they have a lighter impact on the planet.
With the UK government's initiative to phase out fossil fuel boilers from new-build properties by 2035, switching to an energy-efficient boiler is a step in the right direction for existing homes.
Offset upfront costs with a Tandem Home Improvement Loan, spreading payments over manageable monthly instalments.
Types of energy efficient boilers
There are several types of energy efficient boilers, including combi, system, and conventional boilers. Each type is designed to suit different property sizes and heating needs.
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