There is no such thing as “steam-cleaning”. We know of no reputable company that actually uses steam to clean carpets. Hot-solution Extraction is the proper term for the carpet cleaning procedure that produces the best over-all results and is recommended by all the leading carpet manufacturers. This procedure depends upon the use of a solution that contains water that has been heated to around 135 degrees. The effectiveness of the process improves only slightly when the water used is hotter than 135 and becomes completely ineffective if the water in the solution is turned to steam at 212 degrees.