Index: firmware/App/Controllers/Heaters.h
===================================================================
diff -u -r3ebcff44116a7853d2011c7b2f1eb38c1f37ba2a -r4541d91cb4324d3d5e1aa4104ebcd9eb14c904f6
--- firmware/App/Controllers/Heaters.h	(.../Heaters.h)	(revision 3ebcff44116a7853d2011c7b2f1eb38c1f37ba2a)
+++ firmware/App/Controllers/Heaters.h	(.../Heaters.h)	(revision 4541d91cb4324d3d5e1aa4104ebcd9eb14c904f6)
@@ -52,11 +52,10 @@
     F32 d45_HeaterTargetTemp;                     ///< Trimmer heater target temperature
     U32 d5_HeaterState;                           ///< Primary heater state
     U32 d45_HeaterState;                          ///< Trimmer heater state
-    F32 d5_dutyCycleCnt;                          ///< Primary heater duty cycle in counts
+    F32 d5_feedforward;                           ///< Primary heater duty cycle in counts
     F32 d5_PWMPeriod;                             ///< Primary heater PWM period
     F32 d5_adjsutedTargetTemp;                    ///< Primary heater adjsuted target temperature
     F32 d5_targetTempFromTD;                      ///< User set target temperature
-    F32 d5_efficiency;                            ///< AC Heater efficiency
 #ifdef __HEATERS_DEBUG__
     F32 dbg1;
     F32 dbg2;