Hi guys. I will appreciate urgent solution of the below:

Machines: two metallurgical gas fired furnaces, F1 & F2 (with 1 burner each, gas deliver rating: burner1= 30~50 m3/h, burner2= 50~70 m3/h)

in F1, burner1 will operate for a temperature range of 325 C to 650 C

in F2, burner2 will operate for a temperature range of 900 C to 1250 C

It is an urgent, in practical sense what will be the total consumption of gas per day (in m3) by both furnaces if they both run for 16 hrs a day.

thanks

cr4has