During this period, the arrival of the chimney stack and enclosed hearths resulted in the decline of the great hall based around an open hearth that was typical of earlier Medieval architecture. Instead, fireplaces could now be placed upstairs and it became possible to have a second story that ran the whole length of the house. Tudor chimney-pieces were made large and elaborate to draw attention to the owner's adoption of this new technology. The jetty appeared, as a way to show off the modernity of having a complete, full-length upper floor.