Attached are the schematics for the signal conditioning and control electronics for the LENR apparatus I'm building. There are three subcircuits: inlet/outlet temperature monitoring, fan airflow control, and a temperature controller that drives a programmable power supply. The last circuit assumes an IR thermometer or a high temp thermocouple controller with 0-20 ma current loop output. This is an industry standard. All the circuits have been simulated and appear to operate correctly. Depending on your particular setup some circuits may be of interest.