Mounting Temp probes

While there are many arguments one way or another as to where to mount your probes in a HERMs setup.  There are 2 types of mounting points and where you choose to use your probes will be left to you. 

The usual mounting point in our system is on the walls of each of our vessels; we’ve found the probe mount on the Mash tun wall from some manufacturers can actually be too high and ineffective.  For this application we have to use the probe in a T-fitting at the output of the HERMs coil prior to the wort returning to the mash.  This way the temperature reading is reflecting the closest to the HERMs and showing the peak temperature of the Mash.  It can be then left to your determination by trial and error how many degrees plus or minus you may need to be to hit your target temperature.  Some systems are more effective when the probe is mounted on the Lauter tun output.

Mounting PID Probes

Similar to the BCS probes, the PID probes use the locknut, o-ring and washer, without the need for compression if you mount to a kettle wall.  If you have the 1.5” temp probe, these will also easily mount in the side of a T-fitting similar to the mounting of the BCS compression fitting.

BCS Compression style mount to kettle wall

This isn’t just an idea on how to approach the kettle mounting, this served well for the past number of years.  With the occasional o-ring replacement when you do a heavy clean after a number of brews.  These pieces should be included with your complete kit or assembled panel.

MPT Style of BCS Probes

Today there are several choices for BCS temperature probe styles, while the compression may be the most flexible, there are some that a purposely designed for clean application. The straight, compression style will work for you in the kettle wall and in the plumbing at any depth you wish along the 4 or 6 inches of probe. The alternative are welded MPT and Tri-Clamp options, while these are an extremely clean finish, they are more specific to their applications.

Examples of MPT style recommended uses include kettle wall and fermentation vessels. The shortest 2” style are still too long to mount on the side of T-fitting like the compression style. If you choose to put the MPT style inline, you need to put it in the flow line of a T-fitting. Mounting the MPT probes follows similar to the compression style, without the extra nut or o-rings.