![]() They require lubrication for the pump, and general cleaning so that cooling filters don’t get blocked, but they remain easy to live with.Ī gas powered pressure washer uses a motor that, like any other engine, requires regular maintenance. Related: How To: Pressure Wash a House Electric pressure washers require less maintenance.Įlectric pressure washers are popular because of their ease of use and low maintenance. For example, 1,500 psi and a GPM of around 1.5 is more than enough for cleaning cars. If a gas pressure washer is powerful enough to lift old paint, it’s not a good idea to use that pressure on more delicate surfaces like vehicle paintwork. The surface being washed also needs to be considered. A fire hose is effective (and hard to control) because it delivers a huge volume of water: up to 50 GPM. To give some kind of comparison, a fire hose runs somewhere between 50 and 200 psi, way below pressure washer performance. The combination of high psi and GPM provided by a gas power washer makes them more difficult to control than electric models. Also bear in mind that motors get hot, and gas pressure water exhausts could cause burns. Even a small pressure washer should never be pointed at people or pets. While pressure washers are not inherently dangerous, a high pressure stream of water can cause injury. ![]() Higher PSI of gas models requires more user skill and safety precautions. Gas pressure washers can be fitted with specific scrubbers for concrete and tarmac, further underlining their power advantage. Gas pressure washers are seldom under 2,500 psi and models that exceed 4,000 psi are widely available. Most household electric pressure washers run at between 1,500 and 3,000 psi with 1.5 to 2.5 GPM. The numbers can sound impressive, but it’s not a particularly good indicator of actual performance. Cleaning units (CU) is sometimes used, which is a multiplication of psi and GPM. High pressure with low flow results in only a fine jet, whereas if both pressure and flow are high the machine can give powerful cleaning over a wider area. The flow rate, given in GPM (gallons per minute) is also important. While specifications for the motor are provided, the main performance indicator is the psi (pounds per square inch) which is the water pressure that the pump generates. Pressure washers have either an electric or gas motor, which powers a pump. ![]() Gas pressure washers are more powerful than electric pressure washers. These details can help pressure washer shoppers make the right decision for their needs. Keep reading for a breakdown of the pros and cons between a gas vs. With a wide range of models available, offering different features and performance, the answer isn’t always straightforward. The question many people ask is whether an electric or gas pressure washer will be the best tool for their needs.
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