Trying to save replacing the a furnace in one of our rentals. It's internal components seem to be in good shape & should function for several more years if I can get it to fire again. I have some experience with these, but would LOVE your input. Thanks in advance!!!:thumbsup: Here's my...

I wanted to have different temperatures in different zones of the furnace. This is because, the charge (a boiler) is placed in the furnace such that, the one end of the charge is only 5mm thick and the other end of the charge is 150mm thick. So, I wanted to keep a higher temperature in the zone...