diff --git a/src/simulation/elements/FIRE.cpp b/src/simulation/elements/FIRE.cpp
index 2fcf1674a..b813857fc 100644
--- a/src/simulation/elements/FIRE.cpp
+++ b/src/simulation/elements/FIRE.cpp
@@ -163,42 +163,6 @@ int Element_FIRE::updateLegacy(UPDATE_FUNC_ARGS) {
 					continue;
 				rt = r&0xFF;
 
-				//THRM burning
-				if (rt==PT_THRM && (t==PT_FIRE || t==PT_PLSM || t==PT_LAVA))
-				{
-					if (!(rand()%500)) {
-						sim->part_change_type(r>>8,x+rx,y+ry,PT_LAVA);
-						parts[r>>8].ctype = PT_BMTL;
-						parts[r>>8].temp = 3500.0f;
-						sim->pv[(y+ry)/CELL][(x+rx)/CELL] += 50.0f;
-					} else {
-						sim->part_change_type(r>>8,x+rx,y+ry,PT_LAVA);
-						parts[r>>8].life = 400;
-						parts[r>>8].ctype = PT_THRM;
-						parts[r>>8].temp = 3500.0f;
-						parts[r>>8].tmp = 20;
-					}
-					continue;
-				}
-
-				if ((rt==PT_COAL) || (rt==PT_BCOL))
-				{
-					if ((t==PT_FIRE || t==PT_PLSM))
-					{
-						if (parts[r>>8].life>100 && !(rand()%500)) {
-							parts[r>>8].life = 99;
-						}
-					}
-					else if (t==PT_LAVA)
-					{
-						if (parts[i].ctype == PT_IRON && !(rand()%500)) {
-							parts[i].ctype = PT_METL;
-							sim->kill_part(r>>8);
-						}
-					}
-				}
-
-
 				lpv = (int)sim->pv[(y+ry)/CELL][(x+rx)/CELL];
 				if (lpv < 1) lpv = 1;
 				if (t!=PT_SPRK && sim->elements[rt].Meltable  && ((rt!=PT_RBDM && rt!=PT_LRBD) || t!=PT_SPRK) && ((t!=PT_FIRE&&t!=PT_PLSM) || (rt!=PT_METL && rt!=PT_IRON && rt!=PT_ETRD && rt!=PT_PSCN && rt!=PT_NSCN && rt!=PT_NTCT && rt!=PT_PTCT && rt!=PT_BMTL && rt!=PT_BRMT && rt!=PT_SALT && rt!=PT_INWR)) &&sim->elements[rt].Meltable*lpv>(rand()%1000))