I've managed to pick up a California Stainless WH-1200 recirculating water heater on the cheap, formerly used in a pro lab. These are typically used to maintain temperature in a water jacket for dip-n-dunk type processing. I'll be using it for water bath temp control in my own processing.
I have the rather terse instructions that come with the unit, but they're mum on matters of placement of the unit relative to the water bath -- above, level with, or even below(*). I was wondering if anyone has experience with these, and has any sense of what works best in arranging the heater relative to the water bath?
(*) though below seems right out, as it could lead to water running down towards the unit and possibly to components outside of the water seals.