Location: - It is placed in the path of flue gases in between the exit from the furnace and the chimney. OR In The way of feed water before boiler.
Function: - The function of economizer is to increase the temperature of feed water, by absorbing heat from exhausted hot flue gases.
ii) Feed water heater:
Location: - It is placed in between the condenser and the economizer. OR In The way of condensate before economizer.
Function: - Its function is to increase the temperature of feed water by using blade steam.