With so many different boilers on the market it can be a minefield to know which one is best suited to your home and lifestyle. However, before you even start to consider which are the best brands, you need to be sure you’ve identified the right type of boiler for your home. Here we explore the features and benefits of a System boiler over both a Regular (Conventional) and more modern Combi boiler.
For more information on choosing the right type of boiler for your home, be sure to visit our Boiler Buying Guide.
What is a System Boiler?
To really explain the key features of a System boiler we need to talk about Regular and Combi boilers too.
A Regular boiler is also referred to as Conventional or Traditional because it is the oldest heating system of the three. A Regular boiler requires a large feed and expansion tank to be stored in the attic. This tank is filled with cold water from the mains; this water is then fed down to the boiler which is usually installed downstairs. This is because the pressure of the water flow relies on gravity so the higher the elevation of the tank the better the flow of water from your taps. The Regular boiler will heat this water and send it through pipes to your radiators. The feed and expansion tank will also provide water for a hot water storage cylinder (usually kept in an airing cupboard) which will heat the water for your taps.
A Combi boiler is the most recent invention of the three types of boiler. It is an all-in-one unit which takes its water supply directly from the mains and produces hot water on demand for both heating and taps. For this reason it doesn’t require either a feed and expansion tank or a hot water cylinder.
System boilers feature aspects of both a Regular boiler and a Combi. Like a Regular boiler, a System boiler needs a hot water storage cylinder to heat and store hot water for your taps. It doesn’t, however, need a feed and expansion tank in the attic as – like a Combi boiler – it takes its water supply directly from the mains.
Is a System boiler the right choice for your home?
It’s important to seek professional advice when deciding which boiler is best suited to your requirements. In general, a System boiler is a good choice if you have a large home with multiple bathrooms and several outlets needing hot water simultaneously. If you are replacing a Regular boiler with a System boiler you will be able to remove the large tank in the attic and free up some space but it will still meet a high hot water demand. A Combi boiler will also mean you can remove the hot water tank and hot water cylinder, but it will not meet a high demand for hot water.
Remember, always seek advice from a professional and arrange for more than just one quote so you can compare prices.