Westward wall of the ‘Great Workhouse’. This was one of the first buildings on the site, designated to hold over 20 copper reverberatory furnaces. It was the first such building to adopt a long and narrow format with the furnaces arranged primarily so that their grates were near the arches (good air supply) and their chimney flues central permitting better support from the high roof.
Photograph © Crown copyright: Royal Commission on the Ancient and Historical Monuments of Wales