Combi boilers

Because combi boilers use the mains water supply to provide instant hot water, if more than one person needs to use a hot water outlet at the same time, they can struggle to meet the demand. If you have multiple people living in your larger home that will need to use multiple taps or showers at the same time, then a system or standard boiler may be a better choice. However as technology advances, more and more powerful combi boilers are being developed, so there may still be a combi boiler option that works for you. 

Combi boilers use the mains water supply to provide instant hot water on demand, which is very handy as you don’t need to wait for a hot water tank to fill before having a shower. However, it does mean they can struggle to meet demand if multiple people are using hot water taps or showers at the same time. If you use multiple bathrooms simultaneously, a system or standard boiler may be a better option for you. 

Yes, all modern boilers are required to be A-rated, meaning they’re at least 90% efficient. If you have an old boiler, you could benefit from big savings on energy bills by upgrading to a new combi boiler.

Learn more about boiler energy efficiency.

At BOXT we offer combi, system and standard boilers from a range of leading manufacturers including Worcester Bosch, Vaillant, Navien and Baxi. Using our handy Find a Boiler tool, in 90 seconds we’ll give you recommendations for the best boilers to suit your home, with a fixed-price including installation as soon as the very next day.