Recycled residual heat from chimney
We can use the residual heat produced by the boilers, which is normally discharged through the chimney, to pre-heat the cold air that enters into our boilers. This helps reduce our dependency on natural gas. In order to recover residual heat from the chimney, we drew up a detailed design for a heat exchanger in the chimney in 2017. We implemented this project in 2018, reducing our natural gas consumption by 5%.