Cadco PCR-1S Professional Cast Iron Range, Stainless

where was this made ?

canning?

What is the maximum weight, or volume of water, that this unit can support?

How do I regulate the pressure on an All American canner using this burner? Once I reach the needed pressure, at what number do I set the knob to maintain the pressure. I find that I am having to watch constantly and adjust the knob, sometimes turning it completely off.