Its an interesting problem, I'm about to order the F150 unitank, the heating is sorted and I need to get the G20 to connect to the Brewtools heating element.
At this point I am hoping to use the G20's bypass circuit which is suppose to be for this purpose. A good bloke at Kegland pointed me to the instructions.
Getting the telemetry to the Rapt Cloud interface would be nice, or even better having the Rapt controller connecting/managing the heating and cooling options for the fermenter would be great.
Down the track I will probably add a thermowell into the unitank and use the Rapt controller temp probe as pure telemetry.
For now though I'm happy for them to continue work on the Rapt interface.