Alternate heating methods

[Maltedwisdom]

I've seen people attempting to use sous vide cooking appliances to heat their HLT water with a HERMS setup, but frequently comment that it isn't powerful enough to perform a stepped mash. I was curious if you just used two of them, would that make up for their lack in power alone and allow for temperature increases greater than 1 degree a minute?

 

[lschiavo]

This all depends on the batch sizes and what size heating elements are used. You can run your numbers through on of the online calculators.