Heat energy is an important factor in the cleaning process. Heat accelerates chemical processes; every 10°C increase in temperature doubles the reaction speed. Raising the temperature by 20°C increases the reaction speed fourfold. Oil, grease and soot are dislodged more quickly and can be removed more easily. The emulsion of oil and grease in water is accelerated. A heated surface also dries more quickly. In practice, higher water temperatures can reduce cleaning times by up to 35% – with significantly better results. By reducing the water volume, a steam temperature as high as 155°C can also be achieved. The combination of mineral-free steam and pressure can loosen even the most stubborn dirt. This ensures high cleaning performance, even without chemical additives. The steam stage is perfect for removing bitumen coatings, paint coatings in general, soot deposits, lichens and algae.