Pressure washing with hot water just might be the better way to go. In several ways, hot water pressure washers just work more effectively. Hotter temperatures activate the cleaning agents in the water on a molecular level, allowing dirt and oil to be washed away. Heat lowers water’s surface tension so oils present begin to emulsify and with the aid of detergent, dirt is loosened. Also, the higher temperatures will help to kill bacteria that may be present on your cleaning surface. Hot water washing is suitable for all kinds of uses. You wouldn’t wash many things with cold water; the same logic applies here.
If you are considering whether to pressure wash with hot water or cold, think about what kinds of things you will be washing. Hot water removes grease much more easily. If you are cleaning caked on mud or removing chipped paint from the side of a building, hot water will get the job done faster as it will weaken the hold of the dirt and grime.
When pressure washing with hot water, always use detergent to maximize your success. Be sure to use eye protection. It’s always a good idea to keep yourself and others safe from any injuries sustained due to debris flying away from your workspace. If you are pressure washing a building coated with paint or vinyl siding, be sure to avoid washing too closely to the walls to make sure the surface doesn’t sustain any damage. If your goal is to remove paint from an old building, make sure you consider the risk of exposing the lead paint underneath. If cleaning indoor spaces like dirty kitchen walls, make sure your area is clear and evacuated.