OK, I am not trying to start a peeing contest or anything like that but I was curious what people get for an evaporation rate?
Basically what do you have for an evaporator, what heats it, do you use a pre-heater and whats the average evaporation rate you get on it? And I guess just for fun, whats the fastest you've ever had it going?

I have a 2x4 wood fired evaporator on a brick arch with a 2x2 raised flu pan in the back and a 2x2 finishing pan in the front. I have a stainless 5 gallon box over the back dripping into the flu pan, but the saps still ice cold.
On average I get about 15-18 gph, but managed to get it up to about 25 gph this last season when I got into some really dry pine.

I guess I just want to know what I can look forward to if I go for a larger evaporator in a few years and realistically how much space will be needed once I get myself into vaccum.