System boilers are the modern way to heat home and hot water. Because they do not require a header tank in the loft, they save space and maintenance.
The system is fed directly from the water mains. This is known as a sealed system as there are no open vents. If your system develops a leak, it can be quickly identified as you will notice a drop in pressure on the built-in gauge.
Because it operates at 1.5bar pressure, a system boiler helps to alleviate air locks and can even clear blockages. This makes it is a far more efficient way to run your central heating system, saving money on fuel bills.