Hot water pressure washers are the answer if you need to clean grease, oil, and manure. Hot water will do a better job of breaking down the grime. Imagine cleaning your own hands or washing dishes when they are dirty – hot water is the answer. Also, whatever you might clean with cold water, hot water will do it faster.
Hot water units heat the water using a heat exchanger, and this component is complex. The heating coil should also be spiral wound with even spacing to prevent soot build up, which interferes with combustion. On Alkota pressure washers, the coil actually forms the combustion chamber so there is no troublesome insulation. The even coil spirals also allow adequate airflow, improving combustion and fuel efficiency.