With my tendency to burn things, I have been using HERMS to some degree. I have a two pot system and have been using the BK as an HLT. Of course, this presents some problems, like where to poor the liquid off to. As a result, I've been using my mixing bucket as a storage vessel, but I really do not like filling a plastic bucket with hot water. Oh yes, and I am all electric.
I have been working on improving that setup for the last few months, including changing all my fittings out to tri-clamps and adding a third bucket to the batch. However, for some reason, my mind just can't let go of using my BK as an HLT and just using my HLT as a storage vessel. Although, I think I have been convincing myself not to do that with my rebuild.
I bring all of this up to throw the combined CFC HERMS + RIMS into the mix of options here. What I am looking at doing is as follows:
* CFC between HLT and MT, two pumps, circulate both past each other.
* Depending on the rate at which the system can step up, I may add a RIMS after the CFC going back to the MT, so the RIMS is doing minimal work to increase the wort temp that last few degrees. Alternatively, I could put it before, but it seems like I would have to guess at what temp rise I could get out of the CFC and then have the RIMS raise to just before that, so after just seems simpler because I can test the temperature between the CFC and RIMS and after the RIMS and have the RIMS heat accordingly.
* All else fails, use the BK to bring an extra gallon or two up and toss it in to raise the mash temperature faster, but I doubt that would be necessary.
I know, overkill, at that point I probably should have gone to steam, but steam and pressure scare me.
So, other than the overkill and cost, I am sure someone can tell me why this is a dumb idea.
Keep in mind, I am still thinking about it, my first step here is to update my pots and go to a full three vessel setup with CFC HERMS. Then to add the RIMS as necessary.