27
Control and Safety Sensors
ESP
The ESP (Exhaust Sensing Probe) is a temperature 
sensing probe located in the exhaust outlet. The ESP 
works with the Control  to perform all burn rate func-
tions as well as high and low limit control.
Room Sensor
The Room Sensor is a small temperature sensor placed 
where  you  would  normally  put  a  thermostat. The 
Room Sensor is extended to the stove with normal 
thermostat wire. The Room Sensor works with the 
ESPandtheControltoprovidetherightsizere.
FSS
The  FSS  (Firebox  Static  Switch)  is  an  electronic 
pressure switch that senses rebox pressure. The
FSS works with the ESP Control to adjust the draft 
blower speed to compensate for wind and changing 
house pressures.
TCP
The  TCP  (Temperature  Control  Probe)  is  located 
on the left side of the feeder. The TCP works with 
the Control to reduce the feeder temperature if  the 
temperature begins to rise.
ESP
TCP
This small black switch is located in the control 
box behind the control board. It is preset and is 
non-adjustable.