Boilers Explained

System 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. 
Unvented hot water system: In an unvented system there is no cold water tank – instead a sealed hot water cylinder is fed directly by the cold water mains. … As soon as an outlet (i.e tap, shower) is used, the pressure of the incoming cold water displaces the hot water content in the cylinder towards the open outlet at mains pressure.

  • Ideal for homes with more than 2 bathrooms and big families
  • İdeal for new unvented hot water system installations
  • Constant supply of hot water to any number of taps at the same time
  • No need for a loft tank, freeing up space and eliminating worries about leaks or frost damage
  • Economical to run
  • Built-in components makes installation quicker and neater

Combi Boiler

A combination or ‘combi’ boiler is both a high efficiency water heater and a central heating boiler in a single compact unit. Combi boilers heat water directly from the mains when you turn on a tap, so you won’t need a hot water storage cylinder or a cold water storage tank in the roof space.
They are also very cost-effective and energy-efficient as water is heated instantly rather than being heated and then stored in a cylinder. An added benefit is that hot water is delivered at mains pressure, which means that you could get a powerful shower without the need for a separate pump.

  • No need for a hot water cylinder allows increased living space 
  • No cold water storage tank frees up a loft for conversion
  • No risk of loft pipework freezing 
  • Less pipework in the home makes installation typically cheaper
  • Less cost on new central heating installations

Regular Boiler

Regular boilers (sometimes known as traditional, conventional or heat only boilers) are ideally suited to homes that already have a traditional heating and hot water system which is linked to a separate hot water cylinder. Generally components (pump,motorised valves..) are next to hot water cylinder. A regular boiler may be the best option for replacing an existing boiler if the property has an all central heating & hot water systems, as it might not be able to cope with the higher water pressure that is delivered by system or combi boilers.

  • Ideal to swap old gravity/pumped system boilers
  • A good option in areas where water pressure is low
  • Compatible with unvented hot water systems
  • Compact Cupboard Sizes

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Choose one of these Combi Boilers which are all are suitable for your needs

Glow-worm Betacom4 24kw combi-boiler

Vaillant ecoTEC pro 24kw combi-boiler with horizontal flue pack

Worcester Greenstar 25Si 25kw combi-boiler

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Glow-worm Betacom 5 years warranty

Vaillant ecoFIT pure 830 30kw combi-boiler with rear flue

Worcester Greenstar 30i 30kw combi-boiler with horizontal flue

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Choose one of these Combi Boilers which are all suitable for your needs

Glow-worm Energy 35kw combi boiler

Worcester Greenstar 8000 Style 35kw combi boiler (white or black)

Vaillant ecoTEC plus 835 35kw combi boiler with vertical flue

Vaillant ecoTEC Exclusive 843 43kw combi boiler

Worcester Greenstar 8000 Style 40kw combi boiler

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Choose one of these Combi Boilers which are all suitable for your needs

Glow-worm Energy 18R 18kw

Baxi 400 18kw - heat only boiler with 5 years warranty

Worcester Greenstar 18Ri 18kw - heat only boiler with 5 years warranty

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Glow-worm Energy 30R 30kw

Worcester Greenstar 30Ri 30kw - heat only boiler with 5 year warranty

Baxi 800 30kw combi boiler - with 10 years warranty

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Property Size

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Choose one of these Combi Boilers which are all suitable for your needs

Glow-worm Betacom4 24kw combi boiler with 5 year warranty

Vaillant ecoTEC pro 24 24kw combi boiler with horizontal flue pack

Worcester Greenstar 25Si 25kw - heat only boiler

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Select a boiler

Choose one of these Combi Boilers which are all are suitable for your needs

Glow-worm Betacom - 5 years warranty

Vaillant ecoFIT pure 830 30kw combi-boiler with rear flue

Worcester Greenstar 30i 30kw combi-boiler with horizontal flue

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Select a boiler

Choose one of these Combi Boilers which are all suitable for your needs

Glow-worm Energy 35kw combi boiler

Worcester Greenstar 8000 Style 35kw combi boiler (white or black)

Vaillant ecoTEC plus 835 35kw combi boiler with vertical flue

Vaillant ecoTEC Exclusive 843 43kw combi boiler

Worcester Greenstar 8000 Style 40kw combi boiler

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Final cost

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We will need to make a home visit to ensure your chosen boiler is compatible with your existing system. Please contact us for home visit  arrangements.
Please also contact us for a home visit if you require full central heating installation.

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