Tried it last night - well not fully - and I need to set the PID on 70% to get "vigor" like i did in my old pot at 60%. Didn't have time for a full test, but I'll let you know what I find out.
Cool cool... I mean you cant take what I say as BLACK AND WHITE... obviously logic dictates that with the same BTU applied to a LARGER volume, there will be a difference. But, logic dictates that most brewers adjust thier burner to get the same relative vigor, making te boil off differences on a HBing scale, negligible.
I guess what I was really getting at is that you will not INCREASE your boil off RATE with MORE wort... logic would dictate that you would reduce it since you are decreasing your BTU/LB ratio. In our cases Bakins, we can simply add 10% or so to the output and probably get the same boil off.
But why wouldnt we need to DOULBE the power? Well, maybe this is the same principle as a mult-engine aircraft operating with ONE engine inop.
If you have a climb rate of 2,000 feet/min with TWO engines, you will NOT have a climb rate of 1,000 feet/min with ONE engine operating. Why?
The aircraft NEEDS a certain amount of thrust to MAINTAIN level flight at a said airspeed. It then USES excess thrust to accelerate and climb.
If your excess thrust is that thrust provided by the second engine... without it you do not HALVE your climb rate, you lose the ability to climb at all.
This is why I dont think you need to double the power to achieve the same rate if you double the volume. You simply need to DOUBLE the EXCESS BTU's to keep the fluid vaporizing at the desired rate.
If I want to doulbe the climb rate in my a/c I do not need to double the thrust rating... I only need to double the EXCESS thrust... aha