© Alfred Kärcher GmbH & Co. KG

Time for a hot shower!

Stationary hot water high-pres­sure cleaners from Kärcher blow away even the toughest dirt easily. They use a burner with an ebm-papst gas blower to heat the water.


When talking about Kärcher high-pres­sure cleaners, many people think about the compact yellow house­hold helpers that spot­lessly clean patios, façades or garden furni­ture. But Kärcher also offers a wide range of prod­ucts for profes­sional appli­ca­tions, including stationary hot water high-pres­sure cleaners. They are used wher­ever lots of cleaning needs to be done often, for example on large farms, in the food processing industry, or the auto­mo­tive industry. They work much differ­ently than the units used in private house­holds. Pres­sure and hot water are centrally produced by stationary systems and supplied via piping to various dispensing points where the users attach high-pres­sure hoses and attach­ments before cleaning.

Cleaning without chem­i­cals

The hot water enables fast and thor­ough cleaning without any chem­ical aids,” says Steffen Burger, Product Manager for stationary high-pres­sure cleaners at Kärcher. “Ideal cleaning results vary from case to case depending on the pres­sure and the amount of water used.” At a maximum pres­sure of 140 bar, the hot water high-pres­sure cleaner uses up to 1,200 liters per hour, heating the water up to about 80 degrees Celsius. However, very good results can often be achieved at only 60 degrees. Then the user saves energy without having to accept lower quality.

“When that is avail­able, the gas version is more econom­ical in the long run because gas is the cheaper energy source.”

Steffen Burger, Product Manager for stationary high-pres­sure cleaners at Kärcher

There are two basic designs for the hot water high-­pres­sure cleaner; one heats with oil and the other with gas. Though the oil version is more common, the gas version is better suited for facil­i­ties with espe­cially high cleaning volumes. “Of course another require­ment is a gas connec­tion on site,” says Burger. “When that is avail­able, the gas version is more econom­ical in the long run because gas is the cheaper energy source.” Kärcher produces the compo­nents for oil combus­tion completely on its own, but it coop­er­ated with ebm-papst on the blower for the gas version.

At a maximum pres­sure of 140 bar, the hot water high-pres­sure cleaner uses up to 1,200 liters per hour. (Photo | Alfred Kärcher GmbH & Co. KG)

Burger says, “ebm-papst has great exper­tise in this area, so we’re glad to have them as a strong partner.” Burger considers it a further advan­tage that ebm-papst constantly refines its prod­ucts, taking rele­vant safety aspects into consid­er­a­tion as it does so. “That means we can be sure that the blowers always satisfy the latest legal regu­la­tions and that the sensi­tive issue of gas is in good hands.”

The effi­cient combus­tion enabled by the ebm-papst RG 148 blower is also a plus for Kärcher’s customers. “We mainly sell the gas version of the stationary high-pres­sure cleaners in Europe,” says Burger. “The overall effi­ciency of a system is impor­tant to this target group, and every single compo­nent makes a contri­bu­tion to that.”

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