Hot or Cold Water Pressure Washer?

Chose a cold water pressure washer for most common home task like cleaning cars, patios, and mud covered services, as they are more cost-effective and suitable for delicate materials. Select a hot water pressure washer for industrial-grade cleaning involving grease, oil, and stubborn grime, such as on engines, equipment, and in commercial settings like food service, as the heat helps break down such substances more effectively. 

Select a hot water pressure washer for industrial-grade cleaning involving grease, oil, and stubborn grime, such as on engines, equipment, and in commercial settings like food service, as the heat helps break down such substances more effectively. 
When to Use a Cold Water Pressure Washer

Cost-effectiveness:
Cold water units are cheaper to purchase and operate, as they don't have a heating element and use less energy. 

Delicate surfaces:
They are ideal for cleaning surfaces that might be damaged by hot water, like wood, plastic, and many vehicle parts. 
Typical tasks:
Perfect for residential uses such as washing cars, cleaning decks, patios, and removing mud or dirt. 
Basic maintenance:
Suitable for regular cleaning and removing everyday grime. 

When to Use a Hot Water Pressure Washer

Oil and Grease:
Essential for tasks involving oil, grease, and other heavy-duty residues, as hot water melts these substances. 

Commercial & Industrial Settings:
Used for cleaning heavy equipment, in the food service industry, and for waste management and construction.                                                                                                              Efficiency:                                                                                                                                 Hot water cleans more effectively and can reduce cleaning time, effort, and the need for detergents. 
Sanitation:
Hot water can also provide a sanitizing effect in applications where that is important, such as food processing facilities. 

Important Considerations

Design:
Never use hot water in a cold water pressure washer, as it can damage the unit's components like seals, hoses, and the pump. 

Cost vs. Benefit:
A hot water pressure washer is a significant investment, but the increased efficiency and capability can be more cost-effective for frequent, heavy-duty cleaning tasks

Support:                                                                                                                                       Many Industrial pressure washers come with warranties that are backed by dealers in your area.