What is a combi boiler

Combination (combi) boilers

Combi’ is short for combination boiler. This type of boiler does two things, it heats water and provides central heating.

Combi boilers heat water as you draw it from the tap. They don’t need a water storage tank as the boiler is connected directly to the water mains, meaning it only heats water as and when it’s needed. If you are in need of hot water at any time without worry, a combi boiler will likely be the best choice for your home. Furthermore, the lack of a water storage tank means that you’ll save space in your home too.

Boiler Installation and replacement - vaillant ecotec-plus-combination-boiler

Is your home suitable for a combi boiler?

Combi boilers are cost effective and energy efficient, as well as compact. They don’t require a water storage tank (usually in the loft) or a hot water cylinder, making them ideal for properties with limited space. They provide best-in-class energy efficiency, Combi boilers are one of the most popular boiler types fitted in the UK today.

Note that for larger households with multiple bathrooms in active use, the delivery of hot water can be affected when more than one hot water tap is in use simultaneously. Furthermore, homes that have poor incoming water pressure and/or flow rates could struggle to efficiently utilise a combi boiler. A certified engineer can assess the viability of a combi boiler in your home during a visit.

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