How much PSI do I need for a pressure washer?
It depends on what you're cleaning. Around 1,000 to 1,700 PSI suits cars, bikes and outdoor furniture. Decks and patios usually need 1,800 to 2,100 PSI, and driveways and concrete 1,800 to 2,300 PSI or more. More pressure isn't always better, so start low and increase only if you need to.
What's more important, PSI or flow rate?
Both. PSI is the force of the water, and flow rate (litres per minute) is how much water comes out. A higher flow rate rinses loosened dirt away faster, which is why two machines with similar PSI can clean quite differently. Compare the two figures together rather than choosing on PSI alone.
What's the difference between bar and PSI?
They're two ways of measuring the same thing. 1 bar is roughly 14.5 PSI, so a 150 bar machine is around 2,175 PSI.
Does the motor type matter?
It can. Universal motors are common in lighter, more affordable machines and suit occasional use around the house. Induction motors are usually found in heavier-duty models, run more quietly and are built to last longer. If you'll use your pressure washer regularly, an induction motor is worth considering.
Can a pressure washer damage timber decking?
Yes, if the pressure is too high or the nozzle is held too close. Use a wider spray, a lower setting and keep a safe distance from the surface. Test a small, hidden area first, then work up only if needed.
Which accessories are worth buying?
A surface cleaner is one of the most useful for patios, paths and driveways, as it gives a more even finish and covers large areas faster. A foam cannon or detergent attachment helps with cars, and a rotary nozzle suits stubborn dirt on hard surfaces. Always check accessories are compatible with your machine.
Is an electric pressure washer powerful enough for a driveway?
For most home driveways, yes, as long as you choose a higher-performance electric model and pair it with a surface cleaner. For very large areas or regular heavy-duty work, a petrol model may be the better fit.
Which STIHL electric pressure washer is best for home use?
For everyday jobs around the house and garden, the RE 90 is a lightweight, easy option. If you clean more often or want more reach, the RE 110 PLUS adds an induction motor, aluminium pump and an 8 metre hose. Our team can help you compare models in store.

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