--- a/thermferm/simulator.c	Thu May 14 22:03:35 2015 +0200
+++ b/thermferm/simulator.c	Sat May 16 17:39:30 2015 +0200
@@ -29,6 +29,8 @@
 extern int		debug;
 extern sys_config	Config;
 
+int SIMcooling = 0;
+int SIMheating = 0;
 
 
 #ifdef HAVE_WIRINGPI_H
@@ -78,12 +80,18 @@
 	    	 * the plate is warmer then the air, calculate the cooling down temperature.
 	    	 * Finally, calculate the new air and plate temperature.
 	    	 */
+		if (SIMheating) {
+		    simulator->air_temperature += 0.01;
+		}
 
 	    	/* 
 	    	 * If cooling, calculate temperature of the cooling plate. If cooling is off but
 	    	 * the plate is colder then the air, calculate the warming up temperature.
 	    	 * Finsally, calculate the new air and plate temperature.
 	    	 */
+		if (SIMcooling) {
+		    simulator->air_temperature -= 0.01;
+		}
 
 	    	/*
 	    	 * Calculate the extra beer temperatur rise to simulate the heat produced by the