Boiler feed Pumps are a special type of pump used to pump water into a steam boiler. Water can be a newly supplied or returned condensate produced by the condensation of steam produced by the boiler. These pumps are usually high-pressure units that draw from the condensate return system and can be centrifugal or positive displacement. Feedwater pumps range in size up to many kilowatts and the motor is typically separated from the pump body by some style of mechanical coupling. Large industrial condensate pumps may also serve as feedwater pumps.