I also see the display fluctuations - however only when the unit is in Fahrenheit mode. I don't see these fluctuations when it is set for Celsius. Perhaps that means it's just a display artifact?
Odd and annoying, but we should all be metric by now anyhow. :)
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Well, I must say the promise of this device is very compelling, sorry to hear it's not quite ready for prime time.
Thanks for being a guinea pig on this!
Hey BM,
Did you get the Williams SS chiller? If so, how did it perform vs. the Chilus Convolutus?
I have the SS and have wondered how they compare w/r/t/ chilling time.
Thanks!
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KW - Good points about avoiding laminar flow at low wort flow rates. No doubt I'm running into this myself. That said, I imagine there's a limit whereby running the pump wide-open will be so fast that cooling efficiency will drop off...?
I'm also curious if anyone has creative ideas on how to...
Very interesting... I'd looked into this earlier but couldn't swallow the price, but if you could get a deal, it's looks pretty slick.
Have you tried cold-crashing your fermentor with this?
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Yes, I'd agree: definitely a closed-loop system as the submersible pump wouldn't work without a reservoir. There are quite a few options for inline pumps for liquid-cooled PC systems.
My thought was to replace the reservoir entirely with a smaller radiator inside the fridge/freezer. This is certainly much more space-efficient. If the radiator has better thermal transfer characteristics than a bucket or corny keg, then perhaps it would work despite the smaller size...?
TJ,
I've had nearly the identical experience (and arrived at the same final methods) with my stainless CFC unit from Williams. I had thought maybe the poor performance was due to the difference in heat transfer between copper and SS. However, given your copper experience is nearly identical...