Tip summary Sending a cold water to your boiler is not an energy efficient act, so hot flue gases can be utilized for preheating boiler feed water via economizer to reduce your boiler fuel consumption and operation cost Rule of thumb Every rise of 6ºC in boiler feed water temperature through waste heat Recovery would offer about 1% fuel savings. All the industrial sectors are affected by the increasing energy prices, we provide proven integrated services that can reduce their energy bills so, they can maximize their profits. To receive regular energy saving tips, subscribe to our newsletter and contact us today to start your cost-saving program