diff --git a/src/simulation/Simulation.cpp b/src/simulation/Simulation.cpp
index 1d24d2b00..730e5f157 100644
--- a/src/simulation/Simulation.cpp
+++ b/src/simulation/Simulation.cpp
@@ -2662,14 +2662,17 @@ void Simulation::update_particles_i(int start, int inc)
 					else
 						pt = (c_heat+parts[i].temp*96.645/ptypes[t].hconduct*fabs(ptypes[t].weight))/(c_Cm+96.645/ptypes[t].hconduct*fabs(ptypes[t].weight));
 
+					c_heat += parts[i].temp*96.645/ptypes[t].hconduct*fabs(ptypes[t].weight);
+					c_Cm += 96.645/ptypes[t].hconduct*fabs(ptypes[t].weight);
+					parts[i].temp = restrict_flt(pt, MIN_TEMP, MAX_TEMP);
 #else
 					pt = (c_heat+parts[i].temp)/(h_count+1);
-#endif
 					pt = parts[i].temp = restrict_flt(pt, MIN_TEMP, MAX_TEMP);
 					for (j=0; j<8; j++)
 					{
 						parts[surround_hconduct[j]].temp = pt;
 					}
+#endif
 
 					ctemph = ctempl = pt;
 					// change boiling point with pressure
@@ -2682,29 +2685,93 @@ void Simulation::update_particles_i(int start, int inc)
 					s = 1;
 					if (ctemph>ptransitions[t].thv&&ptransitions[t].tht>-1) {
 						// particle type change due to high temperature
+#ifdef REALISTIC
+						float dbt = ctempl - pt;
+						if (ptransitions[t].tht!=PT_NUM)
+						{
+							if (platent[t] <= (c_heat - (ptransitions[t].thv - dbt)*c_Cm))
+							{
+								pt = (c_heat - platent[t])/c_Cm;
+								t = ptransitions[t].tht;
+							}
+							else
+							{
+								parts[i].temp = restrict_flt(ptransitions[t].thv - dbt, MIN_TEMP, MAX_TEMP);
+								s = 0;
+							}
+						}
+						 	 #else
 						if (ptransitions[t].tht!=PT_NUM)
 							t = ptransitions[t].tht;
+#endif
 						else if (t==PT_ICEI) {
-							if (parts[i].ctype>0&&parts[i].ctype<PT_NUM&&parts[i].ctype!=PT_ICEI) {
+							if (parts[i].ctype<PT_NUM&&parts[i].ctype!=PT_ICEI) {
 								if (ptransitions[parts[i].ctype].tlt==PT_ICEI&&pt<=ptransitions[parts[i].ctype].tlv) s = 0;
 								else {
+#ifdef REALISTIC
+									//One ice table value for all it's kinds
+									if (platent[t] <= (c_heat - (ptransitions[parts[i].ctype].tlv - dbt)*c_Cm))
+									{
+										pt = (c_heat - platent[t])/c_Cm;
+									 	 t = parts[i].ctype;
+									 	 parts[i].ctype = PT_NONE;
+									 	 parts[i].life = 0;
+									}
+									else
+									{
+										parts[i].temp = restrict_flt(ptransitions[parts[i].ctype].tlv - dbt, MIN_TEMP, MAX_TEMP);
+									 	 s = 0;
+									}
+									#else
 									t = parts[i].ctype;
 									parts[i].ctype = PT_NONE;
 									parts[i].life = 0;
+#endif
 								}
 							}
-							else if (pt>274.0f) t = PT_WATR;
 							else s = 0;
 						}
 						else if (t==PT_SLTW) {
+#ifdef REALISTIC
+							if (platent[t] <= (c_heat - (ptransitions[t].thv - dbt)*c_Cm))
+							{
+								pt = (c_heat - platent[t])/c_Cm;
+
+								if (1>rand()%6) t = PT_SALT;
+								else t = PT_WTRV;
+							}
+							else
+							{
+								parts[i].temp = restrict_flt(ptransitions[t].thv - dbt, MIN_TEMP, MAX_TEMP);
+								s = 0;
+							}
+#else
 							if (1>rand()%6) t = PT_SALT;
 							else t = PT_WTRV;
+#endif
 						}
 						else s = 0;
 					} else if (ctempl<ptransitions[t].tlv&&ptransitions[t].tlt>-1) {
 						// particle type change due to low temperature
+#ifdef REALISTIC
+						float dbt = ctempl - pt;
 						if (ptransitions[t].tlt!=PT_NUM)
-							t = ptransitions[t].tlt;
+						{
+							if (platent[ptransitions[t].tlt] >= (c_heat - (ptransitions[t].tlv - dbt)*c_Cm))
+							{
+								pt = (c_heat + platent[ptransitions[t].tlt])/c_Cm;
+								t = ptransitions[t].tlt;
+							}
+							else
+							{
+								parts[i].temp = restrict_flt(ptransitions[t].tlv - dbt, MIN_TEMP, MAX_TEMP);
+								s = 0;
+							}
+						}
+#else
+						 if (ptransitions[t].tlt!=PT_NUM)
+						   t = ptransitions[t].tlt;
+#endif
 						else if (t==PT_WTRV) {
 							if (pt<273.0f) t = PT_RIME;
 							else t = PT_DSTW;
@@ -2736,6 +2803,13 @@ void Simulation::update_particles_i(int start, int inc)
 						else s = 0;
 					}
 					else s = 0;
+#ifdef REALISTIC
+					pt = restrict_flt(pt, MIN_TEMP, MAX_TEMP);
+					for (j=0; j<8; j++)
+					{
+						parts[surround_hconduct[j]].temp = pt;
+					}
+#endif
 					if (s) { // particle type change occurred
 						if (t==PT_ICEI||t==PT_LAVA)
 							parts[i].ctype = parts[i].type;
@@ -3502,6 +3576,11 @@ Simulation::Simulation():
 	memcpy(ptypes, ptypesT, elementCount * sizeof(part_type));
 	free(ptypesT);
 
+	int latentCount;
+	unsigned int * platentT = LoadLatent(latentCount);
+	memcpy(platent, platentT, latentCount * sizeof(unsigned int));
+	free(platentT);
+
 	int transitionCount;
 	part_transition * ptransitionsT = LoadTransitions(transitionCount);
 	memcpy(ptransitions, ptransitionsT, sizeof(part_transition) * transitionCount);
diff --git a/src/simulation/Simulation.h b/src/simulation/Simulation.h
index 3139b7777..125837351 100644
--- a/src/simulation/Simulation.h
+++ b/src/simulation/Simulation.h
@@ -140,6 +140,7 @@ public:
 	Air * air;
 
 	part_type ptypes[PT_NUM];
+	unsigned int platent[PT_NUM];
 	part_transition ptransitions[PT_NUM];
 	wall_type wtypes[UI_WALLCOUNT];
 	gol_menu gmenu[NGOL];
diff --git a/src/simulation/SimulationData.cpp b/src/simulation/SimulationData.cpp
index e53349185..7022b93b8 100644
--- a/src/simulation/SimulationData.cpp
+++ b/src/simulation/SimulationData.cpp
@@ -358,6 +358,178 @@ part_type * LoadElements(int & elementCount)
 	return ptypesT;
 }
 
+unsigned int * LoadLatent(int & elementCount)
+{
+	unsigned int platent[PT_NUM] =
+	{
+		/* NONE */ 0,
+		/* DUST */ 0,
+		/* WATR */ 7500,
+		/* OIL  */ 0,
+		/* FIRE */ 0,
+		/* STNE */ 0,
+		/* LAVA */ 0,
+		/* GUN  */ 0,
+		/* NITR */ 0,
+		/* CLNE */ 0,
+		/* GAS  */ 0,
+		/* C-4  */ 0,
+		/* GOO  */ 0,
+		/* ICE  */ 1095,
+		/* METL */ 919,
+		/* SPRK */ 0,
+		/* SNOW */ 1095,
+		/* WOOD */ 0,
+		/* NEUT */ 0,
+		/* PLUT */ 0,
+		/* PLNT */ 0,
+		/* ACID */ 0,
+		/* VOID */ 0,
+		/* WTRV */ 0,
+		/* CNCT */ 0,
+		/* DSTW */ 7500,
+		/* SALT */ 0,
+		/* SLTW */ 7500,
+		/* DMND */ 0,
+		/* BMTL */ 0,
+		/* BRMT */ 0,
+		/* PHOT */ 0,
+		/* URAN */ 0,
+		/* WAX  */ 0,
+		/* MWAX */ 0,
+		/* PSCN */ 0,
+		/* NSCN */ 0,
+		/* LN2  */ 0,
+		/* INSL */ 0,
+		/* VACU */ 0,
+		/* VENT */ 0,
+		/* RBDM */ 0,
+		/* LRBD */ 0,
+		/* NTCT */ 0,
+		/* SAND */ 0,
+		/* GLAS */ 0,
+		/* PTCT */ 0,
+		/* BGLA */ 0,
+		/* THDR */ 0,
+		/* PLSM */ 0,
+		/* ETRD */ 0,
+		/* NICE */ 0,
+		/* NBLE */ 0,
+		/* BTRY */ 0,
+		/* LCRY */ 0,
+		/* STKM */ 0,
+		/* SWCH */ 0,
+		/* SMKE */ 0,
+		/* DESL */ 0,
+		/* COAL */ 0,
+		/* LO2  */ 0,
+		/* O2   */ 0,
+		/* INWR */ 0,
+		/* YEST */ 0,
+		/* DYST */ 0,
+		/* THRM */ 0,
+		/* GLOW */ 0,
+		/* BRCK */ 0,
+		/* CFLM */ 0,
+		/* FIRW */ 0,
+		/* FUSE */ 0,
+		/* FSEP */ 0,
+		/* AMTR */ 0,
+		/* BCOL */ 0,
+		/* PCLN */ 0,
+		/* HSWC */ 0,
+		/* IRON */ 0,
+		/* MORT */ 0,
+		/* LIFE */ 0,
+		/* DLAY */ 0,
+		/* CO2  */ 0,
+		/* DRIC */ 0,
+		/* CBNW */ 7500,
+		/* STOR */ 0,
+		/* STOR */ 0,
+		/* FREE */ 0,
+		/* FREE */ 0,
+		/* FREE */ 0,
+		/* FREE */ 0,
+		/* FREE */ 0,
+		/* SPNG */ 0,
+		/* RIME */ 0,
+		/* FOG  */ 0,
+		/* BCLN */ 0,
+		/* LOVE */ 0,
+		/* DEUT */ 0,
+		/* WARP */ 0,
+		/* PUMP */ 0,
+		/* FWRK */ 0,
+		/* PIPE */ 0,
+		/* FRZZ */ 0,
+		/* FRZW */ 0,
+		/* GRAV */ 0,
+		/* BIZR */ 0,
+		/* BIZRG*/ 0,
+		/* BIZRS*/ 0,
+		/* INST */ 0,
+		/* ISOZ */ 0,
+		/* ISZS */ 0,
+		/* PRTI */ 0,
+		/* PRTO */ 0,
+		/* PSTE */ 0,
+		/* PSTS */ 0,
+		/* ANAR */ 0,
+		/* VINE */ 0,
+		/* INVS */ 0,
+		/* EQVE */ 0,
+		/* SPWN2*/ 0,
+		/* SPAWN*/ 0,
+		/* SHLD1*/ 0,
+		/* SHLD2*/ 0,
+		/* SHLD3*/ 0,
+		/* SHLD4*/ 0,
+		/* LOlZ */ 0,
+		/* WIFI */ 0,
+		/* FILT */ 0,
+		/* ARAY */ 0,
+		/* BRAY */ 0,
+		/* STKM2*/ 0,
+		/* BOMB */ 0,
+		/* C-5  */ 0,
+		/* SING */ 0,
+		/* QRTZ */ 0,
+		/* PQRT */ 0,
+		/* EMP  */ 0,
+		/* BREL */ 0,
+		/* ELEC */ 0,
+		/* ACEL */ 0,
+		/* DCEL */ 0,
+		/* TNT  */ 0,
+		/* IGNP */ 0,
+		/* BOYL */ 0,
+		/* FREE */ 0,
+		/* FREE */ 0,
+		/* FREE */ 0,
+		/* FREE */ 0,
+		/* FREE */ 0,
+		/* WIND */ 0,
+		/* H2   */ 0,
+		/* SOAP */ 0,
+		/* NBHL */ 0,
+		/* NWHL */ 0,
+		/* MERC */ 0,
+		/* PBCN */ 0,
+		/* GPMP */ 0,
+		/* CLST */ 0,
+		/* WIRE */ 0,
+		/* GBMB */ 0,
+		/* FIGH */ 0,
+		/* FRAY */ 0,
+		/* REPL */ 0,
+	};
+	elementCount = PT_NUM;
+	unsigned int * platentT = (unsigned int*)malloc(PT_NUM*sizeof(unsigned int));
+	memcpy(platentT, platent, PT_NUM*sizeof(unsigned int));
+	return platentT;
+}
+
 part_transition * LoadTransitions(int & transitionCount)
 {
 	#define IPL -257.0f
diff --git a/src/simulation/SimulationData.h b/src/simulation/SimulationData.h
index 1e1c455ee..03c491af5 100644
--- a/src/simulation/SimulationData.h
+++ b/src/simulation/SimulationData.h
@@ -148,6 +148,8 @@ menu_section * LoadMenus(int & menuCount);
 
 part_type * LoadElements(int & elementCount);
 
+unsigned int * LoadLatent(int & elementCount);
+
 part_transition * LoadTransitions(int & transitionCount);
 
 #endif /* SIMULATIONDATA_H_ */