Logically, commercial pressure washers use commercial-grade engines like the Honda GX series, whereas residential models use lighter-duty engines like the Honda GC series. It boils down to two major components: The engine and the pump. When we differentiate between commercial and residential, we’re really talking about the difference between commercial and residential gas pressure washers. ![]() ![]() Not surprisingly, the main trade-off is runtime. Meanwhile, battery power has its own set of considerations.Ĭurrently, Greenworks has the only battery-powered pressure washer on the market with pressure worth writing home about, though there are a few pressure washers in the 300–450 PSI range. Electric pressure washers usually max out in the mid-2000 PSI range. But, generally speaking, electric motors don’t give you the pressure and water flow that you’ll get out of a gas engine. Gas pressure washers are loud, require more maintenance, and have smelly gas emissions. If you decide on one that doesn’t have this feature, make sure you plug into an outlet that does. If you’re buying an electric pressure washer, consider one that has GFCI built-in. The drawback is that they’re limited in power and water flow. They also run quieter and with fewer emissions. When deciding what form of power you’ll be using, there are some significant trade-offs that will inevitably factor into your consideration.Įlectric pressure washers are ideal for homeowners thanks to their low-maintenance designs. Cleaning with the largest surface cleaner attachments.Paint stripping/graffiti removal (at the top of the range).Cleaning with larger surface cleaner attachments. ![]() Cleaning with smaller surface cleaner attachments.Here’s a breakdown of PSI strengths paired with common tasks. The best way to determine the amount of power you need is to anticipate what you might want to clean with your pressure washer. How Much Pressure Washer Power Do You Need? Here’s an example:Įven though Model A didn’t have the highest PSI or GPM rating, it actually has the most overall cleaning power. One way to compare one pressure washer’s power to another is simply to multiply the two values together. Some models have a flow control valve on the pump if you want to reduce water flow. More water flow means more water is hitting the surface. GPM (gallons per minute) is a measure of the maximum water flow. The pressure is highest with your 0º tip and reduces as the angle widens. Higher pressure means more force and, therefore, more cleaning power. PSI represents the maximum force with which the water will hit the surface. PSI, or pounds per square inch, is usually what gets the most attention, but they’re both important. PSI vs GPMĮvery pressure washer and power washer comes with two numbers: A PSI rating and a GPM rating. They’re also more expensive and require more maintenance, which is why many Pros and homeowners use pressure washers with chemical detergents. This single feature can make a difference in a washer’s ability to blast away stubborn messes like oil and grease. ![]() If fact, there’s one major difference: Power washers have a heating element and pressure washers don’t. We find similarities between pressure washers and power washers, but they aren’t the same. Pressure Washer Buying Guide Pressure Washer vs Power Washer: Aren’t They the Same?
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