A high efficiency water heater and central heating system in one unit. Combination boilers heat water from the mains so when the tap is turned on, it doesn’t require an extra hot water storage tank in the roof area.
These type of boilers need a cylinder for storing water, the major heating and hot water components are built into itself making it quicker and easier to install. There is also no requirement for a hot water tank making a good option for home with little or no loft space, or where the space has been used for a conversion.
Also known as a traditional boiler, conventional or heat only boiler, these boilers are great for homes that have traditional heating and hot water systems which are linked to separate hot water cylinders. These types of boilers don’t require a cold-water storage tank that maintains the water level of the central heating system. These types of boilers are often considered the best option for replacing an existing system if the property has an old radiator system.