Three good reasons why Vulcan is such a popular choice for reliable water heating. Vulcan is built with the best: Quality materials and proven technology make Vulcan a great choice.Vulcan is tough: The Vulcan storage cylinder is made from high strength steel tough enough to withstand varying water and heating cycle pressures. Vulcan is adaptable: The balanced flue and steel jackets make Vulcan gas models easy to install and easy to live with. They can be installed on an approved base against a wall or recessed into a wall cavity. Vulcan has backup: If you need a spare part for your Vulcan it’s good to know they are readily available across the country and can be serviced by most plumbers or electricians.