A schematic drawing of an early 19th century boiler similar to a Pettibone furnace - Smithsonian Institution In 1801, Thomas Jefferson gave orders for the demolition of the outdoor wooden privy and had two water closets installed upstairs, one on each end of the house. He also had a wine cellar built just west of the house and called it an "ice house." Jefferson made changes to many of the fireplaces, including equipping the kitchen with its first iron range fitted to the existing firebox and adding hob-grates for coal to several others. A call bell system was installed for summoning servants, and artificial light came in part from "patent" oil lamps that featured innovative Argand burners. On the outside of the building, lead and wood gutters were replaced with iron ones. The White House's first heating system, the gravity-based Pettibone furnace, was installed when James Madison took office in 1809. Source: William Seale, The President’s House, 90-91, 92, 100, 103, 114, 117, 126; and William Seale, The White House: The History of an American Idea, 94.