Breaking Down Turndown in Commercial Boilers
One of our most trusted brands, Patterson-Kelley, provided us with this great explanation breaking down turndown in commercial boilers. Boilers are rated on thermal efficiency, which is simply the chemical energy added to the boiler, divided by the energy added to the boiler water. As more energy is transferred from the hot gas into the boiler water, the thermal efficiency increases and the temperature of the hot gas decreases. Turndown ratio