Mains hot water systems generally come in three types: un-vented systems, direct fired gas heaters and thermal storage cylinders. The main advantage of a pressurised hot water system is that it solves situations where high-pressure warm water is required in multiple bathrooms. It is also particularly suited when water pressure is weak, and performance needs to be improved without using a pump.

With power showers becoming increasingly popular in modern bathrooms the demands on water systems are ever increasing. Having a system that can cope with these demands is essential, if you don’t have a suitable domestic system then your water pressure will be low and system performance will be underwhelming.