Flowjet Cleaning Equipment LTD offer more than just a range of standard cleaning equipment. We also make bespoke industrial cleaning equipment for specific cleaning applications. Flowjet offers repairs or maintenance of your pressure washer, whichever make or model. We work closely with Nilfisk, DTE, IPC & Dirt Driver and also Dema.

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    1. Burner Coils & Equipment
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    Burner Coils & Equipment

    Here you will find most pressure washer boilers and boiler spares for hot pressure washers.

    • Fuel Injectors
    • Electrodes
    • Ignition transformers
    • Heating coils
    • Thermostats
    • Boiler Gaskets

    Should you need any help finding any pressure washer boiler spares, please feel free to email me or ring on 07710968275.

    Burner Coils & Equipment

    Hot pressure washers have a boiler/coil that heats cold water fed from the pressure pump. Typically, the machines PCB or other control systems will look for water pressure, the flow of water, spark, fuel level, and temperature setting. Once these are in place the fuel solenoid will energise and open allowing fuel to the burner head. The fast-flowing air from the blower motor and the fuel-injected will then allow for a constant flame.

    The boiler coil is normally made from mild steel and can come in varying in lengths, from 15- 45 m long. The steel is normally 3/8 in bore. Either due to wear,  frost or just unlucky you may find the boiler full of water. This would really mean you need to replace the coil.


    When buying a pressure washer boiler coil please check all dimensions and thread sizes to ensure you get the correct one.


    Removing a coil


    • IPC/ Edge machines have an O ring and a white backing ring. (Don’t lose these!)
    • Nilfisk Neptune 5 and MH5 plus allows for a service crane to be used in order to lift it out
    • Karcher, Kew, Kranzle, DTE, Dirt Driver, MAC, and many more simply needs a strong person to lift them out.  Keep an eye on the orientation that the coil came out.


    Once the coil has been removed, make sure the boiler jacket and fan is clean. If funds are good to replace the fuel jet and electrodes. This combination of cleaning and re renewing parts will allow the boiler to have the best start when firing up for the first time.