Originally Posted by Bobby_M
I noticed that a lot of people bend their HERMS coils to a single diameter and it usually takes up quite a vertical in the HLT. What about leaving it in more of a concentric like copper tubing is shipped? Maybe just two flat coils like that sitting lower in the HLT so you only have to fill to 4 gallons for recirculation. I suppose the challenge is that you still have to add more water for 10 gallon batches and you'll have to stop circulating while the HLT temp recovers.
That sounds like a pro/con: The amount of water needed to cover the coil in the HLT. Or am I misunderstanding it?
I also thought that if I did go RIMS, I would have to add a mini boiler sight glass or something to ensure I saw flow at any given time, the thought of a stuck sparge and potential impact seems like a concern.
And if RIMS, a threaded plug to drain the water out of the unit at the end of brew day. Not sure if I am just being anal, but it seems like this might be a good idea, not for the coil as much as for general cleanliness. On the other hand--with correct mounting design---a hex would be filled with nothing but air at the end of brew day.