In the boiler industry, high purity feedwater is essential to ensure proper operation of steam generation systems. High purity water reduces the use of boiler chemicals due to the frequent reduction in blowdown output required (reduction of blowdown frequency by up to 10 times).

When water is used as a thermal fluid, the salts and hardness in the water are separated due to the temperature shock and settle on the surfaces, forming deposits. These deposits are one of the most important factors of erosion and corrosion in heating and cooling installations.