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Kärcher K1800PS - 1800 PSI 1.2 GPM Electric Pressure Washer

The Kärcher K1800PS is an electric pressure washer offering a maximum water pressure of 1800 PSI and flow of 1.2 GPM. (Read full specs)

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Features and Specifications

General
FuelElectric
HandlingHand Truck
WaterCold (104°F max.)
PSI1800
GPM1.2
Cleaning Units2160
Motor13 amp, universal
PumpAxial
SeriesPS
Other model numbers1.106-201.0
Features
FramePlastic
Soap injectionYes
Soap tank0.3 gal, removable
Soap dilutionNo
Nozzles15°, Soap, Turbo
Quick connect nozzlesYes
Onboard storageYes
Hose20 ft
Hose storageDedicated slot (top)
Misc
Dimensions
(D x W x H)
Approx. 17.5 x 16.5 x 33.1 in
Weight20.7 lbs
Wheels2 wheels, ⌀8", never flat
Included accessoriesWand, spray gun, high pressure hose, garden hose adapter, 35 ft GFCI power cord, 3 nozzles
SecurityTrigger lock
Warranty3 years
UPC886622043218

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Description

The K1800PS was developed to offer high cleaning performance and unparalleled ease of use. This electric pressure washer delivers 1800 PSI of TruPressure™, ensuring you get the highest level of cleaning power and driven by a reliable universal motor. It includes convenience features such as a unique on/off foot switch, a handy storage bin, large one-half gallon removable detergent tank and three spray nozzles (including a turbo nozzle for intense cleaning). It is perfect for tackling typical outdoor cleaning jobs. (source: Kärcher (opens in a new tab))

Zoom on the Kärcher K1800PS

The Kärcher K1800PS is a light duty pressure washer, and enables:

  • intense cleaning of hard, unpainted surfaces
  • application of detergent and cleaning solutions
  • intense cleaning of hard surfaces

Ahead are presented its power characteristics and design, its main features and any other additional features.

Power

Its axial pump, which utilizes a 13 amp universal motor, may deliver a pressure of up to 1800 PSI (almost 30 times more than a standard garden hose) and a flow of up to 1.2 GPM. These values correspond to a cleaning power of 2160 Cleaning Units.

Kärcher made starting the motor of this electric pressure washer as easy as possible, since the K1800PS gets easily started by stepping on an ON/OFF pedal. The unit is ready-to-use with peace of mind, thanks to the included 35 ft GFCI cord.

Design & Handling

Thanks to its hand truck design and approximate dimensions of D17.5 x W16.5 x H33.1 in, the Kärcher K1800PS offers great mobility. The folding handle enhances its mobility, while allowing for a convenient storage.

The unit can be very easily carried around, as it weighs just 20.7 lbs. Among other factors, the plastic frame plays a role in this light weight. A set of two 8" never-flat wheels also improves the ease of transport of the device.

Main Features

The Kärcher K1800PS's package includes a spray gun, a wand, a pressure hose, 3 nozzles and a detergent injection feature, with a more detailed description below.

  • Soap injection: A safe detergent storage is facilitated by a removable 0.3 gal tank. As the Kärcher K1800PS doesn’t include a soap dilution mechanism, the user must provide a correctly diluted detergent before proceeding to use it. When a soap nozzle is connected, the detergent will be added automatically to the water.
  • Pressure hose: Using a dedicated slot, the included 20 ft high-pressure hose can be easily stored on the unit when it is not running.
  • Spray gun and wand: A front sheath enables you to easily store the included classic ergonomic spray gun and its wand.
  • Nozzles: The 3 nozzles included with the device, and the respective surfaces which they’re the most suitable for, are shown in the following table.

15°

Soap

Turbo
Concrete, brick, masonrySuitableSuitableUse with caution
Siding, gutters, houseUse with cautionSuitableNot recommended
Fencing, deck, patioUse with cautionSuitableNot recommended
Lawn equipment, boat, RVUse with cautionSuitableNot recommended

Note: The shape of the nozzles above is for illustration purposes only and may differ.
Red cross: Not recommended. Green check: Suitable. Orange check: Use with caution.

Other Features

The nozzles of the Kärcher K1800PS

The Kärcher K1800PS nozzles

  • Onboard storage: With the Kärcher K1800PS's handy storage area, you’ll always have all the necessary nozzles and accessories at hand and thus, you’ll be fully prepared for any job.
  • Safety: Safety of operation is enhanced by a trigger lock mechanism (which prevents accidental operation).
  • Accessories: Besides the usual owner's manual (opens in a new tab) and documentation to get you promptly started, the Kärcher K1800PS comes with garden hose adapter, power cord, wand, pressure hose and spray gun.

The Kärcher K1800PS's performance versus other pressure washers

The following charts are provided to give you an idea of how the key specs of the Kärcher K1800PS compare to similarly priced pressure washers.

  • The Kärcher K1800PS with its 1800 PSI achieves a lower pressure value, compared to other electric pressure washers in the $170-200 price range. In case you are looking for a device with the highest possible power of its water stream, one of the top achievers in this price range is the Greenworks GPW2700 with a PSI of 2700.
  • In the aforementioned price range, this washer, with 1.2 GPM (gallons per minute), is placed on the lower end of the GPM scale. If maximum rinsing efficiency is your top priority, one of the devices with the highest water flow in the same price range is the Greenworks GPW2700, with a GPM of 2.3.
  • The K1800PS's Cleaning Units, 2160 CU (PSI X GPM), fall into the lower end when compared to electric devices of similar price. When it comes to the highest overall cleaning power in the current price range, one of the products at the very top currently is the Greenworks GPW2700 and its 3240 Cleaning Units.

Here's a list of the most popular specific comparisons:

Price comparison

As you can see from this interactive chart, when compared to other electric washers between 2000 and 2500 Cleaning Units, the Karcher K1800PS is on the average side of the price range.

Therefore, this pressure washer nicely fits in the expected budget for this kind of cleaning power.

The bottom line

STRENGTHS:
  • In the expected price range
  • ON/OFF pedal
  • Onboard storage
WEAKNESSES:
  • Could include more nozzles
  • No detergent dilution mechanism
  • Low PSI for the price
  • Low GPM for the price
  • Low CU for the price

Do you own the Kärcher K1800PS and agree (or disagree) with these strengths and weaknesses?

Let us know and write your own review.

About Kärcher

Founded in 1935 by Alfred Kärcher, this family-owned business is headquartered in Winnenden, Germany. Credited with developing Europe's first hot water high-pressure washer in 1950, the company continues to pride itself on ingenuity and innovative thinking for new solutions in the cleaning industry. Kärcher also insists on being a socially- and ecologically-sustainable company. The popularity of the brand can be seen by the fact that the name Kärcher has in some European countries become a colloquial term used synonymously with pressure washers.

Warranty Information

The Kärcher K1800PS is covered under a warranty for up to 3 years. This warranty may be limited and may not cover all parts of the unit.
For more information about the warranty of Kärcher pressure washers, please consult Kärcher's warranty policies (opens in a new tab). Alternatively, you can also contact their Customer Support: 1-800-537-4129.

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