sight glass and thermometer fittings vs. combo - Home Brew Forums
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Old 01-12-2010, 03:27 PM   #1
Jan 2009
Blacksburg, VA
Posts: 426
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Are there pros/cons to going with a combination thermometer/sight glass versus seperate fittings in a keggle? I'm planning on having couplers welded in.

I assume the former is less expensive overall, due to less holes and fittings. Is there a disadvantage to the combo set up??

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Old 01-12-2010, 11:59 PM   #2
nebben's Avatar
Nov 2008
Now legal in Utah
Posts: 1,145
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You want your sight glass to start near the bottom of the pot. If you have a combo fitting, then this will be where your thermometer will be. This is beneficial if you are running something like an HLT and the liquid in the tank is more or less going to be almost the same temp. You can also measure the temp with a low level of liquid in the container.

In an MLT, I could see how you might want the thermometer somewhere higher than the bottom, but this is coming from someone who doesn't have a thermometer fixed to his MLT anyway.

For HLT, my vote is to go for the combo. For MLT, maybe combo, maybe not, depending on your personal preference of thermometer location, if at all. For boil kettle, I can see a benefit of having a sight glass, but not really a thermometer. I just use a dip thermometer in my MLT and BK to verify temps.

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