Separate Vessel HERMS Build

och29 · Post by **och29** » Wed Jul 17, 2013 5:36 pm

Here's a quick build log of my HERMS vessel. The idea was to go all stainless and have a small volume to allow quick changes in temperature (low latency).

Parts:
Toolzone 12 Litre Stainless Steel Bucket
Lid for Bucket
Stainless Steel Coil
Black enclosure
Heating Element (similar)
Compression Fit Stainless Steel Fittings

First stage was to drill holes in the bottom of the bucket: Measure distance between the connections to give you the centres for the holes

Put the element in to figure out where the holes should go

Mark with a center punch

Drill through the bucket: Go really slowly or the stainless will work harden.

Then place the bucket on the lid of the box and mark the centre of the two holes. Drill as before. Make sure to remove all burrs before you put the element in!

Since the lid isn't flat it's a bit of a pain to cut so I used a q-max cutter. The closest size I had was 1.25" which is a bit too big but allows steam/vapour (if I end up using oil rather than water) to escape.

Now I just need to do the wiring... when the bits arrive!

och29 · Post by **och29** » Wed Jul 17, 2013 5:37 pm

Reserved for wiring post

barneey · Post by **barneey** » Wed Jul 17, 2013 8:13 pm

I`m liking the original idea, don't think many (if at all) have mounted the element box on the bottom , side yes, bottom no?

mrlard · Post by **mrlard** » Wed Jul 17, 2013 8:19 pm

barneey wrote:I`m liking the original idea, don't think many (if at all) have mounted the element box on the bottom , side yes, bottom no?

i believe aleman was the pioneer

och29 · Post by **och29** » Wed Jul 17, 2013 8:21 pm

Can't say I looked for what other people have designed, just went with what I thought would be the most efficient!

barneey · Post by **barneey** » Wed Jul 17, 2013 8:25 pm

Yep I know Aleman did / has done the side wall ones but have never seen a bottom mount one before.

darkonnis · Post by **darkonnis** » Wed Jul 17, 2013 9:58 pm

voss did in his build too. Looking good Och, very neat coil.

How much of the rest of your build have you done?

och29 · Post by **och29** » Wed Jul 17, 2013 10:41 pm

In short not much, I'm a couple of items short on everything! Things are just starting to kick off... HERMS just happened to be the first, control panel next!

Frothy · Post by **Frothy** » Tue Oct 08, 2013 1:32 am

Looks great och29. Did you make the coil? Any difficulty bending it? Cheers

Post by **Aleman** » Tue Oct 08, 2013 8:19 am

barneey wrote:Yep I know Aleman did / has done the side wall ones but have never seen a bottom mount one before.

Yeah . . . done the bottom mount as well . . While that version was great, the restriction from the thin copper tube was too much so I've gone back to a shorter length of 10mm, in a eBay cheapy stainless Pan . . . I Also have a 6L thermobox for suitable conversion at some time . . . Just need a suitable short , low element to go in the bottom

golden brewer · Post by **golden brewer** » Tue Oct 08, 2013 10:21 am

I mounted my jug element in the bottom of my 8 litre pot as it fits in better with the coil. Works well.

och29 · Post by **och29** » Wed Oct 09, 2013 2:42 pm

Frothy wrote:Looks great och29. Did you make the coil? Any difficulty bending it? Cheers

Nope, bought it... link in the first post

Frothy · Post by **Frothy** » Wed Oct 09, 2013 7:48 pm

cool thanks - let us know how you get on

Jim's Beer Kit

Practical Homebrewing

HomeBrew Forum

Sponsored by BREW-SCHOOL