When to runs HERMS?

[MatthewDLW3]

So I just got a pump and fittings and designed all my equipment so I can run a herms system through my wort chiller in my HLT. My question is should you run the herms the entire mash time? Or only during mash temp raises/mash outs? Any cons or pros doing either? Going to do my first HERMS brew in a week or so.

 

[HDIr0n]

Do you have temp control on your HLT?

 

[MatthewDLW3]

Thermometer and propane heat thats it for now, but will probably upgrade to an electric heater eventually just for the mash.

 

[tally350z]

The first time you do it, its going to be test run for temps. I only have a propane burner and no temp control and am able to maintain the mash temp throughout the entire mash. My wort going trough the coil is about 3-4 degrees higher than the actual mash temp. Make sure you have a way to recirculate the water within the HLT also. I would go ahead and recirculate during the entire mash..