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I didn't copy down the PID parameters after running autotune, so I'm not sure what the cycle period is. The video in a previous post shows the heating element turning on/off pretty frequently - up to a couple times per second. I haven't had any "stuck sparge" issues in my BIAB sessions...

I've got a 15G kettle; just upgraded from their 9.2G kettle. Hopefully this will keep me going for a while as 10-11G batches is about all I can imagine for BIAB. Howerver, if gear lust really kicks in (and I find the space), there are some really cool 3-vessel systems options with loads of...

I really don't want to add it up...probably more than is reasonably justified by the time savings...

Yeah, I could make an argument either way. I'm happy with the temperature stability from the tests I ran and would need some evidence to switch and add another hose to the system. If I got really motivated I could re-run last weekend's final test, switching the flow to see if I can measure any...

Have you measured how much power/current you are actually using? You would need a lot of current to get 5500w at 120v.

I haven't measured the flow rate, but you can get an idea from one of the photos in a previous post. My kettle isn't insulated, but that could be another way of speeding RIMS-only ramp time. What size batch / heating element do you have? I could live with a 15 min ramp from 153 to 170.

Thanks! I captured the temps with an old version of a Vernier data logger and a thermometer probe suspended in the center of the kettle. Made plots with DataGraph, an awesome plotting tool. We tried both flow directions and having sensor before the heater seemed to result in smoother control...

That would have been a great spreadsheet to have! Is it available online somewhere - I don't see it on a google search. The design/build/test was absolutely part of the fun. 240V is not an option for me at this point, so I'm happy with having unattended single-step mash temp control added to my...

FYI - I posted my RIMS build on this thread: RIMS System for BIAB Mash Temperature Control

I got my main goal (maintain mash temp), but not my stretch goal of enabling automated multi-step mashes and fast ramp to mashout temps. I think the ramp/soak programmable version of the PID (the one I used) would be perfect if you had something more than a 1500W heating element; this would...

One of my original goals was to use the programmable PID to control step-mash and mash-out temperature ramps with a 1500W heating element. It turns out that this heating element doesn’t have the capacity to ramp fast enough for my 15-gallon kettle with an 11-gallon batch. It holds...

The first thing I needed to check was if everything worked as expected -- system design, PID programming, heating element capacity, ... The PID and heating element were able to keep the water within +/- 1F of the programmed set-point. However, with 11 gallons water in the kettle the heating...

For the "wet" part of the system, I chose the RIMS tube from Brewer's Hardware together with a Chugger pump and Camco heating element. In testing the system, I learned that you don't want to plug in a heating element without it being in water. After about 10 seconds it goes "pop" and you have...

The next step was to program the Auber SYL-2352P PID controller. It turns out this is quite an involved process, as the programming model is primitive and instructions pretty basic. However, after reading the manual 2-3 times, speaking the Auber support (thanks Suyi!), and doing a few trial...

After a quick review (perhaps too quick), I selected the Auber SYL-2352P PID temperature controller as the center of the electronics build. It is a ramp/soak controller, often used for controlling kilns in glass and metal work. It seemed like a great choice for controlling both single and...

I've been brewing BIAB on a propane-fired system for about a year and have just completed a build of a RIMS system to help control mash temperature and free up some brewday time by avoiding kettle babysitting duty during mash/mash-out. Propane would still be used for initial heating and for the...

Thanks 1MadScientist -- this is very helpful. My SNPA clone, OG 1.056, fermented at 65F @ 3PSI, dropped all the way to 6 brix per refractometer (see photo below; converts to 1.005 in BS) by day 3 -- way below target final gravity (1.012). I ramped up to 6PSI by day 5, and still had 6 brix. I...

I'm on day 3 of my first pressurized fermentation; everything seems to be going well so far. The Sanke keg spear removal/replacement was kind of a pain but manageable. I've got the spunding valve set at 4psi. What is the consensus on pressure profiles? I've heard some say to ramp up pressure...

I've got a 1.5" tri-clamp butterfly valve

RoundKid -- it's a shutoff valve from Micromatic. Cool idea with the wort wizard...had never heard of that...not sure how easy it would be to use with my immersion chiller.