23 01202 662500 | sales@hamworthy-heating.com | hamworthy-heating.com St Paul’s Cathedral, London Case Study The solution: Hamworthy provided a flexible and efficient modular boiler and hot water solution to fit the building. Two Wessex ModuMax mk3 WM254/508V modular condensing boilers with a combined output of 1,016kWwere chosen. Backed up by a 10-year warranty and fitting through a standard doorway, they provided the installation flexibility needed for St Paul’s Cathedral. To meet the hot water requirements, especially during the summer months’ peak demand when tourist groups arrive, two Powerstock PS500 glass-lined calorifiers with a capacity of 500 litres each and quick recovery time of 18 minutes were chosen. The challenge: St Paul’s Cathedral is a listed building which is subject to strict regulations, prohibiting alterations without special permissions. Leaking steel shell boilers from the 1960s needed replacement. The cathedral considered replacing them with the same kind, but this was not possible due to current legislation to eliminate inefficient boilers. [The Wessex is] space saving, great in refurbishment projects and where you can’t change the building fabric, such as St Paul’s. - Robin Bunton, Bunton Mechanical and Electrical Services ” “ Ticking all the boxes The challenge to provide an energy efficient and compact heating solution to be fitted to an old heating system without changing St Paul’s Cathedral’s building structure was successfully met. Space restrictions were overcome by choosing a modular boiler system to allow installation flexibility and access. Summary: Grade 1 listed building refurbishment Almost 40% reduction in gas consumption BOILERS
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