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Deildartunguhver hot spring. Heating by water from thermal springs and boreholes is common in Iceland. In minor towns (as are most towns in Iceland) the hot ground water is fed directly to the hot water taps. There you can wash and shower enjoying a quite noticeable smell of Hell, or more soberly, sulfurous compounds. In the Reykjavik district the hot water for house heating and washing water are carried by separate tubings; the washing water is clean (close to) surface water heated by geothermal water