diff --git a/tutorials/heatTransfer/chtMultiRegionSimpleFoam/heatExchanger/0.org/porous/U b/tutorials/heatTransfer/chtMultiRegionSimpleFoam/heatExchanger/0.org/porous/U
index 7d6875ae04..23454ad6de 100644
--- a/tutorials/heatTransfer/chtMultiRegionSimpleFoam/heatExchanger/0.org/porous/U
+++ b/tutorials/heatTransfer/chtMultiRegionSimpleFoam/heatExchanger/0.org/porous/U
@@ -17,14 +17,14 @@ FoamFile
 
 dimensions      [0 1 -1 0 0 0 0];
 
-internalField   uniform (0.1 0 0);
+internalField   uniform (0.01 0 0);
 
 boundaryField
 {
     inlet
     {
         type            fixedValue;
-        value           uniform (0.1 0 0);
+        value           uniform (0.01 0 0);
     }
     outlet
     {
diff --git a/tutorials/heatTransfer/chtMultiRegionSimpleFoam/heatExchanger/constant/air/polyMesh/blockMeshDict b/tutorials/heatTransfer/chtMultiRegionSimpleFoam/heatExchanger/constant/air/polyMesh/blockMeshDict
index 49c36ebacf..d0439108c7 100644
--- a/tutorials/heatTransfer/chtMultiRegionSimpleFoam/heatExchanger/constant/air/polyMesh/blockMeshDict
+++ b/tutorials/heatTransfer/chtMultiRegionSimpleFoam/heatExchanger/constant/air/polyMesh/blockMeshDict
@@ -52,15 +52,15 @@ vertices
 
 blocks
 (
-    hex (0 1 5 4 12 13 17 16) (20 20 20) simpleGrading (1 1 1)
-    hex (1 2 6 5 13 14 18 17) (20 20 20) simpleGrading (1 1 1)
-    hex (2 3 7 6 14 15 19 18) (20 20 20) simpleGrading (1 1 1)
-    hex (3 0 4 7 15 12 16 19) (20 20 20) simpleGrading (1 1 1)
-    hex (4 5 9 8 16 17 21 20) cylinder (20 20 20) simpleGrading (1 1 1)
-    hex (5 6 10 9 17 18 22 21) cylinder (20 20 20) simpleGrading (1 1 1)
-    hex (6 7 11 10 18 19 23 22) cylinder (20 20 20) simpleGrading (1 1 1)
-    hex (7 4 8 11 19 16 20 23) cylinder (20 20 20) simpleGrading (1 1 1)
-    hex (8 9 10 11 20 21 22 23) innerCylinder (20 20 20) simpleGrading (1 1 1)
+    hex (0 1  5  4 12 13 17 16) (30 30 30) simpleGrading (1 1 1)
+    hex (1 2  6  5 13 14 18 17) (30 30 30) simpleGrading (1 1 1)
+    hex (2 3  7  6 14 15 19 18) (30 30 30) simpleGrading (1 1 1)
+    hex (3 0  4  7 15 12 16 19) (30 30 30) simpleGrading (1 1 1)
+    hex (4 5  9  8 16 17 21 20) cylinder (30 30 30) simpleGrading (1 1 1)
+    hex (5 6 10  9 17 18 22 21) cylinder (30 30 30) simpleGrading (1 1 1)
+    hex (6 7 11 10 18 19 23 22) cylinder (30 30 30) simpleGrading (1 1 1)
+    hex (7 4  8 11 19 16 20 23) cylinder (30 30 30) simpleGrading (1 1 1)
+    hex (8 9 10 11 20 21 22 23) innerCylinder (30 30 30) simpleGrading (1 1 1)
 );
 
 edges
diff --git a/tutorials/heatTransfer/chtMultiRegionSimpleFoam/heatExchanger/constant/porous/polyMesh/blockMeshDict b/tutorials/heatTransfer/chtMultiRegionSimpleFoam/heatExchanger/constant/porous/polyMesh/blockMeshDict
index 86e616bd27..eae25e8926 100644
--- a/tutorials/heatTransfer/chtMultiRegionSimpleFoam/heatExchanger/constant/porous/polyMesh/blockMeshDict
+++ b/tutorials/heatTransfer/chtMultiRegionSimpleFoam/heatExchanger/constant/porous/polyMesh/blockMeshDict
@@ -31,7 +31,7 @@ vertices
 
 blocks
 (
-    hex (0 1 2 3 4 5 6 7) (20 4 4) simpleGrading (1 1 1)
+    hex (0 1 2 3 4 5 6 7) (40 15 15) simpleGrading (1 1 1)
 );
 
 edges
diff --git a/tutorials/heatTransfer/chtMultiRegionSimpleFoam/heatExchanger/system/air/fvSolution b/tutorials/heatTransfer/chtMultiRegionSimpleFoam/heatExchanger/system/air/fvSolution
index 4f83fc7823..36d404271f 100644
--- a/tutorials/heatTransfer/chtMultiRegionSimpleFoam/heatExchanger/system/air/fvSolution
+++ b/tutorials/heatTransfer/chtMultiRegionSimpleFoam/heatExchanger/system/air/fvSolution
@@ -55,14 +55,14 @@ relaxationFactors
     fields
     {
         rho             1;
-        p_rgh           0.5;
+        p_rgh           0.7;
     }
     equations
     {
-        U               0.2;
-        "(h|e)"         0.2;
-        k               0.2;
-        epsilon         0.2;
+        U               0.3;
+        "(h|e)"         0.3;
+        k               0.3;
+        epsilon         0.3;
     }
 }
 
diff --git a/tutorials/heatTransfer/chtMultiRegionSimpleFoam/heatExchanger/system/porous/fvSolution b/tutorials/heatTransfer/chtMultiRegionSimpleFoam/heatExchanger/system/porous/fvSolution
index 1b3b041a2a..fd6da4016c 100644
--- a/tutorials/heatTransfer/chtMultiRegionSimpleFoam/heatExchanger/system/porous/fvSolution
+++ b/tutorials/heatTransfer/chtMultiRegionSimpleFoam/heatExchanger/system/porous/fvSolution
@@ -53,14 +53,14 @@ relaxationFactors
     fields
     {
         rho             1;
-        p_rgh           0.5;
+        p_rgh           0.7;
     }
     equations
     {
-        U               0.2;
-        "(h|e)"         0.2;
-        k               0.2;
-        epsilon         0.2;
+        U               0.3;
+        "(h|e)"         0.3;
+        k               0.3;
+        epsilon         0.3;
     }
 }