Hi
I was in a long process of thinking on the concept and inventory list of my own Braumeister clone, and was actually considering the same heating element, and also couldn't find a decent 1.2 height/width ratio pot. And then I found this thread. Awesome!
A was already desperate to find a kettle, and had everything sketched up with 1:1 ratio one, which did not look satisfying to my taste. And just after I found this post, I promptly searched my local eBay, and there it was. I scored the same kind of kettle, but only with 400mm diameter. Which makes it a 75l vessel. Mine was used for storing lactose :huh:. The walls are 1.2mm thick. Looks promising to me. I'm gonna go with 300x570mm malt pipe, which is gonna be a V2A stainless steel chimney pipe segment. I already have a rig with a single 21l mash tun with a proper false bottom, which is luckily of 300mm diameter, so I will be able to reuse it as one of the two filter plates.
Here is a sketched up prototype. Hopefully, it's gonna come out as nice as it is drawn.
I have two concerns though. Hopefully, someone could give me his judgement on those.
First, the gap between the malt pipe and the main vessel is gonna be 5cm. I'm planning to bend the heating element at 380mm radius, to keep it away from the malt to avoid scorching. Which will leave a ~32mm gap between the malt pipe and the heating element, and a ~10mm to the main vessel. Considering the element is going to be submerged, is there a chance to do something wrong and overheat the main vessel? My gut feeling is it's gonna be ok.
Second, the original 50L vessel uses two vortex pumps, which, as I understand, is the same analogue as Laing/Lowara/ITT. They have the same dimensions and specs. My local most affordable version is Laing Ecocirc E1-15/700B, which happen to be a replacement pump for the Braumester. I see that only one is used in the build. How does it perform in reality? Will it cope well, what's the degree of performance degradation?
Maybe someone sees a potential flaw in the sketch? I would appreciate any comment
Thanks.
P.S. I'm in Europe, and all prices are in euros. Currently, my preliminary calculations on costs, sets me back for around 400 euros (around 600 AUD, I guess), all including shipping, and not considering the stuff I already have and can reuse, e.g. one of the false bottoms, Arduino board, 20x4 LCD display, SSRs, some fittings, tools, etc.