Combi Boilers take water directly from the mains water supply in your home. To provide an appropriate water flow, they rely on the pressure coming from the mains.

So if the pressure from the mains is not strong enough, a combi boiler is not, therefore, suitable for your home.

A combi Boiler comes with two outputs; one for how water and the other is for home heating. Hot water for central heating takes less effort than on-demand hot water. That’s why it’s crucial to choose a boiler that corresponds with your hot water demands.

Another key point is that if you live in large home with many bathrooms, then a system boiler is what you need.