What is a conventional heat-only boiler?
Heat-only boilers are designed to provide heat for radiators directly, and they do not privde your taps with hot water.
They need to be connected to a cold water cistern, a separate hot water storage system including a hot water cylinder, and in some cases an additional expansion cistern.
Advantages of a conventional heat-only boiler
Conventional heat-only boilers are generally the cheapest boilers available, with many priced at under £500.
Conventional heat-only boilers have shrunk in size more recently, and the boiler unit can often fit in a normal kitchen cupboard.
They are best suited to larger houses where a combi boiler can’t provide enough hot water for central heating and radiators.
Disadvantages of a conventional heat-only boiler
You need a number of water storage cylinder tanks in your loft which takes up space.
Installation can be pricey due to the requirement for water tanks (if you don’t already have the tanks installed). Servicing can also take longer due to the extra tanks that need to be inspected.
Conventional heat-only boilers can be less energy efficient if the water storage cylinder is very well insulated, so this isn’t so great for the environment or your heating bill.
The amount of hot water you have available is limited to the size of the hot water storage cylinder tank that you have in your home. So you may fill a bath, and then need to wait until another can be run.
