Fabdec introduces its new unvented water heater the Excelsior. The Excelsior is a water heating system available in two finishes; either plastosol or stainless steel. The Excelsior has a duplex inner steel cylinder and an outer steel casing. Available in two models, the Excelsior and Excelsior S are available in cylinder sizes ranging from 80 litres to 305 litres. The mains-fed heaters deliver constant water pressure to a maximum of 3 bar – regardless of other appliances in use. Because hot and cold water comes direct from the mains, the Excelsior can be sited in any location on any floor of a building subject to available pipe work.