Simply put, central heating is what is installed in your home to keep it warm from one source; this one source is a boiler. This boiler heats water through various methods and then pumps it to whichever part of the property it is required. Controlling different central heating boilers can also be achieved using different methods such as via thermostatic valves on radiators and electronic programmers.
Here at Vaillant we produce three different types of central heating boilers – each suited to different properties and lifestyles. A Combination (combi) boiler produces not only hot water for central heating but also hot water for taps and showers. A Combination Boiler does not need a hot water cylinder in the property so can you could gain valuable storage space in your home. Combination central heating boilers also give you hot water ‘on demand’ so there is never any need to wait for a tank to fill and then get warm.
System boilers utilise a hot water tank that is usually in an airing cupboard. System boilers are ideal for use in homes with more than one bathroom as this boiler can deliver hot water to several different outlets at the same time.
The third type of boiler that Vaillant produce is called an Open Vent boiler. These boilers use two tanks, usually installed in a loft space, and a hot water storage cylinder. One of the tanks supplies water to the radiators. The other releases hot water to the storage cylinder which in turn feeds taps and showers all over the property. This type of boiler will be the existing system fitted in many older homes and is very space-hungry.
For a more detailed look at each type of boiler mentioned above please click on the links on the left hand side. To see what type of boiler would suit your property best you can also visit the ‘Choose the right system’ page where you will find different house types matched to their best suited boiler.