In a dishwasher having a dishwashing compartment and a pump fluidically
connected to the dishwashing compartment for channeling liquid to the
dishwashing compartment, the pump disposed outside the dishwashing
compartment and including a pump housing defining an interior and housing
a motor and an impeller, a heater for heating dishwashing liquid includes
a heating device disposed on the pump housing in heat-conducting contact
with the interior of the pump housing.