A garden hose has a CPU of 60 (6 GPM at 10 PSI). This formula makes it easy for you to assess how much more powerful a pressure washer can be. This gives unit B 40% more cleaning power than Unit A even though it’s considered more “powerful”. Unit A ejects less water than unit B despite its max pressure threshold. Meanwhile, unit B has a lower 2,400 PSI but 4GPU, so a total of 9,600 CPU.Īlthough unit A produces higher pressure, it has a lower GPM compared to unit B.Unit A has a 2800 PSI and 2GPM, giving it a CPU of 5,600.However, it doesn’t give you the actual cleaning capacity of a specific unit. People often focus on pressure, and it makes sense! After all, more pressure equals power. This measures a pressure washer’s cleaning ability by multiplying its volume (GPU) with the maximum pressure (PSI). Medium-duty units for home and small shops that can clean exterior siding, fences, patios, and decks.Ĭommercial grade, heavy-duty washers for large-scale cleaning such as stripping wall paint or two-story buildings.Ĭleaning capacity refers to the washer’s CPU – not a central processing unit like in a computer, but its cleaning power units. ![]() ![]() Small and light machines designed for lighter jobs such as cleaning outdoor furniture, grills, and vehicles. Low, medium, and high pressure – what does this mean? The hot water jets can reach temperatures of up to 150 degrees centigrade, so in fact, you rarely see hot water pressure washers used at home – they need a more experienced touch! Hot water pressure washers clean faster and use less detergent. Hot water pressure washers – use heated tap water for industrial and commercial cleaning.They are affordable and easy to use and maintain, making them ideal for general outdoor domestic use Cold water pressure washers – available in both electric and gas variants, cold water pressure washers are used in many households.Pressure washers can also be classified based on water temperature: However, gas power washers are much noisier and sometimes require a manual pull start, much like a chainsaw. The main advantage of a gas washer is its portability – it doesn’t need an electrical outlet to operate, so you can haul it around more freely. Gas pressure washers – gas pressure washers use petrol or kerosene as an energy source.Corded electric washers are less portable but are capable of heavy-duty jobs battery-operated washers are more compact and portable but have less power. Electric power washers come in two types: corded and battery-operated. They are generally quieter and require less maintenance. Electric pressure washer – as the name suggests, electric power washers use electricity to power their water pumps. ![]() Gas Power WashersĮlectric and gas pressure washers are both effective for typical outdoor cleaning, but have different characteristics that will suit different needs: Pressure washers are divided into several types depending on their energy source and water temperature.
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