Abstract: A washing apparatus for providing a fluid such as hot water to either a spray nozzle or a dishwasher. A thermostatically controlled heated water storage tank supplies fluid to a piping system having a first branch and a second branch. The first branch is directed to the inlet of a pumping system which pumps hot water to a first outlet of the apparatus. The first branch also includes a bypass line. The second branch of the piping system is directed toward a second outlet of the apparatus and includes a flow sensing switch. The first outlet is adapted for connection to a spray wand having a high pressure nozzle therein for supplying high pressure sprayed fluid as desired. The second outlet is adapted for connection to a dishwasher having a solenoid controlled inlet valve. As long as the dishwasher is not running, the pumping system and spray wand may be used normally.

Abstract: A heat exchange apparatus including a generally cylindrical hollow housing having an upper end and a lower end, and a heating device disposed in the lower portion of the housing. A heating coil assembly is disposed within the housing over the heating device, and includes a radially inner coil bank and a radially outer coil bank adjacent the inner wall of the housing. An intermediate coil bank is connected between the inner and outer coil bank and includes a plurality of helical convolutions of increasing diameter as they successively occur in an axial direction from the lower end of the housing toward the upper end thereof. A baffle frame assembly interconnects and spacially orients the inner and intermediate coil banks, and radially outwardly deflects heated gases from the heating device.