A circulator pump moves hot water through the radiators to heat the rooms, back into the boiler to be reheated of the household, in the heating . A circulator is made up of an electric motor coupled to a water pump, with the motor switched on when the thermostat calls for heat and turned away again as soon as the heating requirement was satisfied. Circulator pumps continue for several years but eventually will wear out and require replacement.
Estimated costs of replacing a boiler circulator pump vary based upon the model and make of pump that your system demands and the quantity of labor involved with the replacement. Replacing a circulator pump can cost as much as $750 as little as $400 or more for the parts and labor in the time of publication. Price of the circulator pump itself drops based on the version your machine requirements.