Unvented hotwater systems are required to supplement a boiler that has a central heating system, when the existing hotwater cylinder either needs replacing or when a more efficient supply of high pressure hotwater is required. They are particularly suitable for larger properties. They are not necessary if a combination boiler has been installed, unless that system cannot cope with the demands of the existing hotwater supply.

High quality Stainless Steel • 25 year cylinder guarantee • Fast heat up and recovery times • Low heat loss • Compact installation • Powerful showers • High flow rates • Dedicated secondary return on all cylinders • Pioneering laser welding