Index: firmware/App/Controllers/Heaters.c
===================================================================
diff -u -r7d293e18ea5ac0fce443c68525100e44df80b4fd -r353d01d31bc69d4d1901ff09097ee610bb1c9dbc
--- firmware/App/Controllers/Heaters.c	(.../Heaters.c)	(revision 7d293e18ea5ac0fce443c68525100e44df80b4fd)
+++ firmware/App/Controllers/Heaters.c	(.../Heaters.c)	(revision 353d01d31bc69d4d1901ff09097ee610bb1c9dbc)
@@ -68,8 +68,6 @@
 #define DELTA_TEMPERATURE_TIME_COSNTANT_C                          8.6                                                             ///< Delta temperature calculated from time constant.
 #define MAXIMUM_ALLOWED_TARGET_TEMPERATURE_DEVIATION_C             0.25                                                            ///< Maximum allowed temperature deviation from target temperature in C.
 #define PRIMARY_HEATER_DUTY_CYCLE_PER_TEMPERATURE_C                0.03                                                            ///< Primary heaters duty cycle per temperature in C.
-#define RESERVOIR_TEMPERATURE_TIME_CONSTANT_C_PER_MIN              0.512                                                           ///< Reservoir temperature time constant C/min.
-#define ULTRAFILTER_TEMPERATURE_TIME_CONSTANT_C_PER_MIN            0.345                                                           ///< Ultrafilter temperature time constant C/min.
 
 static const F32 WATER_SPECIFIC_HEAT_DIVIDED_BY_MINUTES = 4184 / SEC_PER_MIN;                                                      ///< Water specific heat in J/KgC / 60.
 static const F32 PRIMARY_HEATERS_MAXIMUM_POWER_WATTS    = 475 + 237.5;                                                             ///< Primary heaters maximum power (main primary = 475W and small primary = 237.5W).
@@ -121,7 +119,7 @@
 static HEATERS_STATE_T handleHeaterStateTrimmerControlToTarget( void );
 
 static void setHeaterDutyCycle( DG_HEATERS_T heater, F32 pwm );
-static F32 calculatePrimaryHeaterDutyCycle( F32 targetTemperature, F32 currentTemperature, F32 flow, BOOL checkEfficiency );
+static F32  calculatePrimaryHeaterDutyCycle( F32 targetTemperature, F32 currentTemperature, F32 flow, BOOL checkEfficiency );
 static BOOL haveHeaterControlConditionsChanged( DG_HEATERS_T heater );
 
 static void setMainPrimaryHeaterPWM( F32 pwm );