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Types of Boiler

Help & Advice Thu Aug 23

Types of Boiler

A combination or ‘combi’ boiler is a compact boiler capable of providing both central heating and hot water. Water is fed to the boiler from mains and heated on demand when a tap is turned on, eliminating the need for a hot water cylinder in your cupboard or storage tank in your loft.

As water is only heated when needed, and not stored in a tank where heat can be lost, this type of boiler is highly efficient and cost-effective. Another benefit of using a combi is that hot water being delivered at mains pressure could mean a powerful shower without the need for a separate pump.

Why choose a combi boiler?

  • Neat and compact, perfect for installing in a kitchen cupboard or small space
  • No cylinders taking up valuable space in your cupboard
  • No cold water storage tank allows loft to be used as living space or for extra storage
  • No pipework in loft at risk of freezing
  • Installation typically cheaper and simpler as a result of reduced pipework

System boilers provide central heating but still require a cylinder for storing hot water. Similarly to a combi boiler, system boilers use a pressurised system of supplying heating and hot water, eliminating the need for a tank in the loft.

Why choose a system boiler?

  • Constant hot water supply, perfect for homes with more than one bathroom
  • No cold water storage tank frees up loft space
  • No pipework in loft at risk of freezing
  • Built-in components for heating and hot water makes installation quicker & neater
  • Compatible with solar water heating systems for reduced fuel bills & carbon footprint

Regular boilers (also known as traditional or conventional boilers) are found in systems using a hot water cylinder, which is fed from a cold water storage tank in the loft. Where combi and system boilers use a pressurised method of supplying heat, regular boilers require a tank to maintain the water level of the heating system.

Why choose a regular boiler?

  • Best option for older radiator systems not well suited to high water pressure
  • Constant hot water supply for homes with more than one bathroom
  • A good solution for areas where water pressure is low
  • Compatible with solar water heating systems for reduced fuel bills & carbon footprint

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