Choosing the right boiler

Which type of boiler do I need? Choosing the right boiler isn’t always an easy decision; you need to consider your lifestyle and the size of your home. There are three different types of boilers available: Combi boilers, System boilers and Open Vent boilers (traditional/regular).

Combi boiler

A combi or combination boiler ‘combines’ a high-efficiency water heater with a central heating boiler in one compact unit. As the water is heated directly from the mains, you don’t need a hot water storage cylinder or tank, making the combi ideal for smaller properties. And, as it only heats the water as you use it, you have an endless supply of hot water ‘on tap’ and you save on heating costs too.

System boiler

A system boiler provides central heating and hot water using a hot water storage cylinder, which is usually in the airing cupboard, and there’s no need for a tank in the loft. This boiler is suitable for most homes and you can choose between a mains pressure hot water cylinder and low pressure hot water cylinder. To lower your emissions and your heating bills, these boilers are also compatible with renewable energy systems such as solar thermal.

Open vent boiler – Traditional

An open vent boiler is the perfect choice for homes which already have a heating and hot water system with a separate hot water cylinder. Traditional boilers also need a header tank to feed the hot water cylinder and an expansion cistern in the loft.They’re the practical option for homes with more than one bathroom where plenty of stored hot water is needed or in low water pressure areas. These boilers work with solar water heating systems for environmentally friendly hot water and further cost savings.