Evaporation rate in 15.5 gal keggle

[pecosvalleybrewer]

This weekend I will be brewing my first batch on my new brew kettle. It is a 15.5 gal sanke keg converted to a kettle. I do not know what the evaporation rate will be for this keggle. I could do a test boil but honestly I don't feel like taking the time to do it. I know these keggles are popular so I am sure I will get an answer. Thank goodness for homebrew talk.

 

[kwadric]

Mine is about 1.5 gal/hr at just enough heat to deform the surface of the wort.

 

[ThreeRatBastards]

I'm at about 1.25 gal/hr in mine.

 

[Yooper]

On dry days (I don't live in a humid area) in the winter, I boil off 2 gallons an hour. In the summer, it's more like 1.5 gallons per hour.

But it really depends on your climate, and the burner you have.

 

[paraordnance]

I'm observed numbers more like Yooper has. About 1.75-2 gal per hour. But I live where humidity is only around 60% most of the time. And my boil is usually really rolling

 

[JRems]

I'm around to 1.5-2 gal an hour