Lower energy consumption means lower cost, lower cost means saving money. This is a very easy equation and can now be easily implemented thanks to the recirculation of hot air with Leister equipment.
But let's get to the heart of the benefit, the savings. Here is a brief calculation: let's imagine a system that operates 24 hours a day, 250 days a year. To heat an air volume of 4,000 l/min up to an output temperature T2 of 500°C, different powers are required for each temperature (T1) of the incoming air.
T1 = 20°C -> 38.7 kW
T1 = 160°C -> 27.4 kW 29.2% saving compared to 20°C
T1 = 350°C -> 12.1 kW 68.7 % saving compared to 20 °C;
55.8 % saving compared to 160 °C