There are several different types of boiler available

Combi boiler system

Combi boiler

Combination (combi) boilers are extremely economical, making them the best-selling gas boiler in the country. Over 50% of boiler sales in the UK are combi boilers.

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Sealed system boiler

System boiler

System boilers heat up water in advance in a hot water cylinder. This water is then distributed around your home whenever you put the heating on or use hot water.

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Open vent boiler

Open vent boiler

Open vent boilers are also known as conventional, heat only or regular boilers. They have both a hot water cylinder and a cold water tank.

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Back boiler

Back Boiler

Back boilers attach to the back of a fireplace or stove and use excess heat for hot water and heating. They’re not very common but were very popular in the 1960s, 70s and 80s.

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Biomass boiler

Biomass Boiler

Biomass boilers run on wood pellets, chips or logs. They’re an environmentally-friendly alternative to gas or oil boilers or electric heating.

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