Combi boilers are economical to run and can produce an endless supply of hot water. As they heat water direct from the mains, there’s no need to wait for a storage cylinder to heat up, and you won't run out of hot water. They’re also good if you’re short of space. A pump circulates hot water via pipes to heat your radiators.
The benefits of a Combination boiler:
System boilers require a cylinder for storing hot water, however the major heating and hot water system components are built into the boiler itself, making it quicker and easier to install. In addition, there is no need for a tank in the loft, so it can be an option in a home with little or no loft space or where the space is earmarked for a conversion.
These boilers are also compatible with solar hot water heating systems, which deliver environmental benefits as well as lower energy bills.
The benefits of a System boiler:
The Regular (sometimes known as traditional, conventional or heat only boiler systems) have two water tanks in the loft and a cylinder, normally in the airing cupboard. The condensing boiler heats the cylinder and converts cold water to hot, releasing gallons of hot water to taps around the house. A pump also circulates hot water via pipes to heat the radiators.
A regular boiler may be the best option for replacing an existing boiler if the property has an older radiator system, as it might not be able to cope with the higher water pressure that is delivered by system or combi boilers.
The benefits of a Regular boiler: