Terms You Need To Know:
  • PSI (pounds per square inch): This is force the water hits the surface with. The higher the PSI, the more stubborn stains, surface grime, dirt you can remove.
  • GPM (gallons per minute): This is the amount of water that flows from the nozzle per minute. The higher the GPM, the bigger a job you can complete for a given PSI.
  • CP (cleaning power): CP is PSI x GPM. It is a value that is representative of the “cleaning power” of the gas powered pressure cleaner. The higher the PSI and GPM means the CP is higher and thus you can clean more. And more dirty jobs too.
Here’s The Basic Rundown Of Features In A Pressure Cleaner:
  1. Engine – You can decide to get a gasoline or electric powered engine. It’s best to choose your pressure washer based on the PSI rather than looking at the power specs of the actual engine. However, if you buy gasoline make sure it has low oil pressure alarm / shutoff protection.
  2. Pump - Like PSI for the engine, pick your cleaner based on GPM provided by the pump rather than the details of the pump. Also, a feature of some pumps is the ability to siphon up still water – like from a rainwater collection sump. So if you want that make sure it’s specified in the features.
  3. Nozzle – You can get different types of nozzles that are best for different jobs. Usually the nozzles are specified as angles or degrees (Best Pressure Washer Nozzles Reviews). The bigger the angle the wider the sheet of water it sprays. So a 0 degree nozzle will just shoot a straight, direct flow of water at the target. A 45 degree angle will spray a wide sheet of water and thus cover a wider area (but at the cost of less pressure). Reffering at The Best Pressure Washer Nozzles Reviews
  4. Hot / Cold Water (or both) - All best electric pressure washer that I’ve seen take an input of water up to 40 degrees Celsius. But most of us will be giving the washer room temperature water. Some heat up the water you give by 70 degrees Celsius (158 degrees F). Hot water will clean the surface faster (Best Pressure Washer Surface Cleaner) just like it does in your dishwasher. If you’re buying one to remove frost from surfaces then of course you’ll be on the lookout for this feature.