A Guide to Unvented Hot Water Cylinders

What is an unvented hot water cylinder?

An unvented hot water cylinder is a water vessel which holds heated water under extreme pressure, feeding it out when a hot water tap or appliance is opened and providing instant hot water. Because the system is completely pressurised, there is no need to vent it to the atmosphere – hence the name. Continue reading “A Guide to Unvented Hot Water Cylinders”