chappo1970
Piss off or Buy Me A Beer
Been planning phase 2 of the brewery which revolves around 2 important elements, well to me anyway. The first is a HERMS system to the mash tun and the second is a recirculating water jacket around the mash tun using the HERMS. Being the eternal tinkertot I have put an idea to paper.
Please note I would rather not discuss the HERMS here as there is already another great thread which I will post to in regards to that part of the build however if it's important to the overall scheme of things then go for it.
Now I can't claim this as my own idea as it has been discussed with another AHB member who is a genius with this stuff and it was his original idea and concept. I won't name ya mate but certainly chime in if ya feel the need.
The water jacket:
The idea is basically I will upgrade the 55lt esky to an 80lt pot. Now I already have a very robust 125lt pot I picked up from the markets which I want to use as the outer liner with the 80lt pot forming the inner liner. Now I have measured both up and they fit nicely within each other with about 30mm gap all the way around and about 120mm head space. Heaps of room to plumb in the pick up and return for the Mash Tun HERMS (inner 80lt pot). The pick up and return for the recirculation system for the water jacket will be placed in such a way as whirlpool both the HERMS kettle and the water jacket therefore creating even heating through both, maybe? Uneven water displacement thereofre volumes maybe my undoing but not to sure ATM. The idea is to use the HERMS for both heating requirements and hopefully creating a stable temperature throughout mashing as what ever the HERMS is at the water jacket in theory should be as well.
Anyway here's a sketch I have knocked up for the idea.
All comments, critiques and thoughts gladly accepted as always.
Cheers
Chappo
Please note I would rather not discuss the HERMS here as there is already another great thread which I will post to in regards to that part of the build however if it's important to the overall scheme of things then go for it.
Now I can't claim this as my own idea as it has been discussed with another AHB member who is a genius with this stuff and it was his original idea and concept. I won't name ya mate but certainly chime in if ya feel the need.
The water jacket:
The idea is basically I will upgrade the 55lt esky to an 80lt pot. Now I already have a very robust 125lt pot I picked up from the markets which I want to use as the outer liner with the 80lt pot forming the inner liner. Now I have measured both up and they fit nicely within each other with about 30mm gap all the way around and about 120mm head space. Heaps of room to plumb in the pick up and return for the Mash Tun HERMS (inner 80lt pot). The pick up and return for the recirculation system for the water jacket will be placed in such a way as whirlpool both the HERMS kettle and the water jacket therefore creating even heating through both, maybe? Uneven water displacement thereofre volumes maybe my undoing but not to sure ATM. The idea is to use the HERMS for both heating requirements and hopefully creating a stable temperature throughout mashing as what ever the HERMS is at the water jacket in theory should be as well.
Anyway here's a sketch I have knocked up for the idea.
![](https://proxy.imagearchive.com/957/9575eb988938dc4e11383fa106615470.jpg)
All comments, critiques and thoughts gladly accepted as always.
Cheers
Chappo