| 3rd Century BC China: ground heating (smoke channels in the ground and walls). |
140 BC Italy: Roman joint swimming baths heated in a similar way. |
100 BC Hypocaust - this way of heating gained ground as the typical heating of Roman flats. |
| 14th Century The introduction of warm air space heating . |
1745 The Englishman Obert Cook was the initiator of steam heating |
1769 James Watt - first steam machine. In 1770, he heated his flat and factory with steam. |
| 1777 Bonnemann lectures at the Paris academy about hot-water space heating for artificial hatcheries. |
1790 Marquis de Chabanes, France, builds hot-water space heating for a storey building. |
1817 Ludvig Cate issues the first schoolbook entitled "Water Steam Heating". |
| June 30,1831 Anger March Perkins, England, patented the installation for the heating of buildings. |
1853 Heating installations with the network length of 8,000 m are built in Palais du Luxembourg. |
1864 Magdeburg: hot-water space heating of the villa in the Augustinian cloister |
| 1864 Berlin: the first hot-water space heating in schools |
1867 Berlin city hall has hot-water space heating. |
1871 Germany: Steam Boilers Law |
| 1876 Lockport, New York, USA: hotwater space heating of several buildings; in 1877 the first larger arrangement of 5 km of pipelines for hot water supply |
1880 Dresden: the first hot-water space heating with pumping for the owner of a garden Mr. Liebig at a distance of 200 m |
1882 New York: district steam supply on Manhattan |
| 1883 Hamburg: a heating station forthe city hall |
1884 Berlin-Charlottenburg: the heating station for the College of Advanced Technology |
1885 The first combined heat and power station in the United States of America (direct steam heating) |
| 1898 The heating of the College of Advanced Technology in Berlin with steam from its own technical laboratory |
1898 The heating of Hamburg city hall with steam from Hamburg combined heat and power station. |
1900 Dresden: the supply of twelve public buildings in the vicinity of the combined heat and power station. |
| 1900 The heating of Berlin School of Music and Church Music from the machine laboratory of the College of Advanced Technology in Berlin. |
1915 Berlin-Charlottenburg: the first combined heat and power station in Berlin |