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Combi Boilers

Combi Boilers

Combi boilers are one of the popular options for all types of homeowners and landlords, as they combine the power of a gas water heater with a central heating boiler within a single unit that’s compact yet very powerful. 

Save lots of space

Rather than having a hot water cylinder and a cold water storage tank, a combi boiler heats water directly from the water mains as soon as you turn on a hot water tap, saving you a lot of space in areas such as your loft and an airing cupboard. 

Excellent energy efficiency

Due to water only being heated in the quantity that you require, such as when you’re washing the dishes or having a bath, a combi boiler is also an excellent choice for people who want to have a more energy efficient home. This is great for your utility bills as well as the environment, as less energy used means more annual savings. 

Greater performance

Because the hot water is coming straight from the mains supply, you’ll also benefit from higher water pressure compared to a storage tank, which can mean a more enjoyable shower every time without the need of a shower pump. 

Should I choose a combi boiler?

Many modern homes have a combi boiler, which when installed by our Gas Safe engineers here at ProTech will deliver excellent results from day one. However, some types of homes may benefit from a different type of boiler, so we’ve popped some pros and cons below.


  • A compact solution that can easily fit into even the smallest home
  • Perfect for homes that don’t have much or any loft space, 
  • Frees up the loft in a larger property for a potential conversion
  • Removes the need for a hot water cylinder, creating additional space that can be used for storage 
  • Requires less pipework, making it a simpler and often cheaper installation process


  • Homes that use more than one shower at the same time may experience reduced water pressure
  • It can sometimes take a few seconds for the water to heat up
  • Due to the hot water being heated direct from the mains, there’s no hot water backup in the event of a boiler breakdown

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See which boiler is best for you

Personally, we believe that the pros outweigh the cons in the majority of scenarios, but it’s totally up to you whether this type of boiler is installed in your home. To find out more about combi boilers from a range of top manufacturers, get in touch with our team on 0800 138 2223.

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