What Is an Unvented Hot Water Cylinder?
An unvented cylinder stores hot water at mains pressure — meaning powerful, consistent hot water at every tap and shower in your home, without the need for a cold water tank in the loft.
Traditional hot water cylinders rely on a cold water storage tank in the roof space, which limits water pressure and means that the pressure at a shower on the top floor is often weaker. An unvented cylinder connects directly to the mains, so hot water is delivered at full mains pressure throughout the entire property — consistently strong flow at every outlet, even when multiple taps are running simultaneously.
Because unvented cylinders operate at higher pressure, they require specialist installation by a G3-qualified engineer — a specific qualification that not all plumbers hold. Our team carries the appropriate qualifications and installs these systems across Glasgow City and the wider Central Belt, including East Renfrewshire, Renfrewshire, South Lanarkshire, North Lanarkshire, East Dunbartonshire, West Dunbartonshire, and Inverclyde.
