Cold Water Pressure Washer
Cold water pressure washers can successfully clean many objects and surfaces through a combination of spray impact and the application of cleaning chemicals and soaps. A wide range of accessories and cleaning chemicals will maximize the cleaning potential of a cold water pressure washer.


However, if you intend to use a pressure washer for tougher cleaning jobs involving grease, fat, or oils, you will need a unit that preheats the water before it is pressurized. Additionally, these (hot water) units do not require detergents, cleaning agents, or other harsh chemicals to operate efficiently. You probably understand that using a cold water machine makes removing grease from a surface more difficult. The reason for this is that the water is at room temperature or cold.
This means that over time, grease will harden into a stiff, waxy substance that is very difficult to remove—even with high-pressure spraying.
The Two Major Benefits of Using a Hot Water Pressure Washer
1. Better at Removing Grease, Grime, and Oil
A hot water unit sprays hot water with great force, which not only removes grime and grease from the surface but also softens it, making it easy to wipe away. These units can heat water to a maximum temperature of 200°F. Heat is the most critical element in power washing: high-pressure hot water is highly effective at cutting through deposits.
2. Faster Cleaning
Using hot water can reduce cleaning time by up to 40% and improve final results. This is because oil and grease stains emulsify and flow more easily when heated, making them quicker and simpler to remove. Hot water also accelerates chemical processes, making detergents work faster. On top of all this, the cleaned object dries more quickly because it has been warmed by the hot water.