Including free delivery to 1 mainland UK address. A Hot Water Washer / Steam Cleaner, is a Cold Water Washer with an added oil fired burner unit to heat the water, which is extremely useful for the fast removal of grease and oils. However even with hot water, you will still need to use a detergent to break the final grease film and very hot water can dull certain types of paintwork, so if you only have occasional greasy jobs but plenty of ordinary dirt to wash off, a Cold Water Washer is worth considering first.