Abstract: A low pressure hot water parts washing apparatus recirculating a heated water/detergent solution and spraying same from a perforated manifold onto oily and dirt-laden parts carried by a rotary turntable. The turntable is peripherally mounted by bearings spaced about a conical solution reservoir tank to support parts without turntable tilting. The solution is drawn from the conical reservoir tank through apertures in a radiator tube housing heating elements, the elements being cleaned by a continual flow of solution passing thereover while efficiently heating the solution.