A system boiler is the term for a heat-only boiler. System boilers are a type of condensing boiler which occupy the middle ground between combi boilers and the regular boilers.

Unlike combi boilers, both system boilers and regular (conventional) boilers work on the principle of storing hot water in a copper cylinder (usually in the airing cupboard). A system boiler will provide heating together with the power to heat water to be stored within the cylinder as part of a sealed system. Notwithstanding this system boilers differ from regular boilers in some fundamental respects.

Compact installation

The key difference with a system boiler is that all the major components are built in to the boiler. By building in components, which most other boilers situate outside the unit, system boilers can provide a compact and attractive installation. One noticeable difference is that a feed and expansion tank in the attic is no longer needed. This can save you space and the system has fewer components to maintain.

Building the major individual components of the heating and hot water system in to the system boiler means that installation is quicker, neater, easier and more efficient.

Loft space not required

As noted the header or feeder tank required by a regular boiler to continually feed water to your central heating system is not required. System boilers take a direct feed from the cold water mains and store water in a small tank built into the boiler. Accordingly space is freed in your loft which may enable you to use it for alternative purposes.

Hot water cylinder retained

The storage of hot water in the hot water cylinder means that the boiler is less dependent upon a flow of water from the cold water mains and can be used in areas where the water pressure is too low for a combi boiler to be used.

Is a system boiler the right type of boiler for you?

There are several types of modern condensing boilers suited to different houses and different lifestyles. You need to choose the type that meets your needs. You may have heard of combi boilers and wondered whether they would be the best type of boiler for your home. You can read of all the options in this site and better prepare yourself to make this important decision.

Seeking the advice of an expert is a sensible approach and you should refer to a boiler installer that you know you can trust. If you do not know of an installer you can trust you can call upon npower to help you with their experience in this market. An npower Home Energy Consultant can visit your home, free of charge, to assess which type of boiler is right for you and to provide you with a firm quotation for a new boiler in their sale. The advice given is without any obligations on your part and you can use this service to ensure that you make the right decision before you make a purchase.