
Boiler Comparison
Choose the right boiler for your space
Whether you're in a compact flat or a large family home, Ninja Boilers helps you find the perfect match. Compare combi, system, conventional and electric boilers — all installed with flexible finance and expert care.
Speak to our team and discover the best boiler for your home — with 12-month 0% finance on all installations.
Pros & Cons at a glance
Compare every boiler type, visually
A quick visual reference for the main strengths and trade-offs of each boiler type — perfect for narrowing down your shortlist before booking a survey.




Compare and choose wisely
Four boiler types — side by side
Combi Boilers
Best for: Flats & smaller homes
Combi (combination) boilers are ideal for small to medium-sized homes. They provide hot water and heating from a single compact unit, with no need for a separate water tank. Combi boilers heat water on demand, making them energy-efficient and space-saving. They may not suit homes with multiple bathrooms in simultaneous use.
Explore Combi BoilersSystem Boilers
Best for: Larger homes, 2+ bathrooms
System boilers are designed for homes with higher hot water demand. They work alongside a separate hot water cylinder but don't require a cold water tank in the loft. This setup ensures a steady supply of hot water to multiple taps at once — a popular choice for larger households or properties with multiple bathrooms.
Explore System BoilersElectric Boilers
Best for: Off-gas properties
Electric boilers are an efficient choice for homes without a gas supply. Quiet, compact and easy to install, they're ideal for small properties, apartments and flats. They produce no carbon emissions at the point of use and require less maintenance. Running costs can be higher than gas.
Explore Electric BoilersConventional Boilers
Best for: Traditional / older homes
Also known as regular or heat-only boilers, conventional systems are perfect for homes with traditional heating setups. They use both a hot water cylinder and a cold water storage tank — typically in the loft. They take up more space but provide reliable flow and work well with older radiator systems.
Explore Conventional BoilersNeed help choosing?
From cold to comfortable in 24 hours
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