Index: firmware/App/Controllers/Heaters.h
===================================================================
diff -u -r2496e9225fa1b2c627d625def02515a0f0dd5793 -re5c9e31c2644c7f0ca17ba81767a8ed19b99cebf
--- firmware/App/Controllers/Heaters.h	(.../Heaters.h)	(revision 2496e9225fa1b2c627d625def02515a0f0dd5793)
+++ firmware/App/Controllers/Heaters.h	(.../Heaters.h)	(revision e5c9e31c2644c7f0ca17ba81767a8ed19b99cebf)
@@ -22,8 +22,8 @@
 void setPrimaryHeaterTargetTemperature ( F32 targetTemp );
 void setTrimmerHeaterTargetTemperature ( F32 targetTemp );
 
-void startPrimaryHeater ( void );
-void startTrimmerHeater ( void );
+BOOL startPrimaryHeater ( void );
+BOOL startTrimmerHeater ( void );
 
 void stopPrimaryHeater ( void );
 void stopTrimmerHeater ( void );