I'm in the design stages of a new home brewery. It will be a single tier 3 vessel e-herms with propane fired BK sized for 5 gallon batches.
Temperature control of the HLT will be with a water heater element sized for 15a/120V service (strike/sparge water will be heated via boil kettle and temperature maintained in HLT hence small heating element.) Ideally the heating element will be plugged into a typical outlet which is powered by temperature controller of some type (discrete on/off control)
Temperature control of MT will be via circulation of work through HX coil in HLT. The pump will be plugged into an outlet powered by temperature controller (discrete on/off control).
I'm very comfortable in the mechanical fabrication of this system, but I'm shaky on the instrumentation and electrical part and am hoping you all could lend me your expertise.
What is neccessary equipment wise to control HLT temperature as described?
What is neccessary equipment to control MT temperature as described?
What flaws are there in this control strategy, how can it be improved?
I appreciate any help in advance.