diff --git a/tutorials/compressible/rhoCentralFoam/LadenburgJet60psi/constant/thermophysicalProperties b/tutorials/compressible/rhoCentralFoam/LadenburgJet60psi/constant/thermophysicalProperties
index 9081551c6f6942e27458d17f287b256ba4c3ea2f..6fff161f863eab88afe4fcca0e5ba1f5fcc980d8 100644
--- a/tutorials/compressible/rhoCentralFoam/LadenburgJet60psi/constant/thermophysicalProperties
+++ b/tutorials/compressible/rhoCentralFoam/LadenburgJet60psi/constant/thermophysicalProperties
@@ -15,7 +15,7 @@ FoamFile
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
-thermoType      hThermo<pureMixture<sutherlandTransport<specieThermo<hConstThermo<perfectGas>>>>>;
+thermoType      hPsiThermo<pureMixture<sutherlandTransport<specieThermo<hConstThermo<perfectGas>>>>>;
 
 mixture         air 1 28.96 1004.5 0 1.458e-06 110.4;
 
diff --git a/tutorials/compressible/rhoCentralFoam/biconic25-55Run35/constant/thermophysicalProperties b/tutorials/compressible/rhoCentralFoam/biconic25-55Run35/constant/thermophysicalProperties
index a4d934aeb2e5b8a50cb0e200272cff6f61f4483d..140131eb07a96a0fe4afdf9fe2dd261ceed10c8f 100644
--- a/tutorials/compressible/rhoCentralFoam/biconic25-55Run35/constant/thermophysicalProperties
+++ b/tutorials/compressible/rhoCentralFoam/biconic25-55Run35/constant/thermophysicalProperties
@@ -17,7 +17,7 @@ FoamFile
 
 Pr              Pr [ 0 0 0 0 0 0 0 ] 0.72;
 
-thermoType      hThermo<pureMixture<sutherlandTransport<specieThermo<janafThermo<perfectGas>>>>>;
+thermoType      hPsiThermo<pureMixture<sutherlandTransport<specieThermo<janafThermo<perfectGas>>>>>;
 
 mixture         N2 1 28.01348 100 10000 1000 2.9525407 0.0013968838 -4.9262577e-07 7.8600091e-11 -4.6074978e-15 -923.93753 5.8718221 3.5309628 -0.0001236595 -5.0299339e-07 2.4352768e-09 -1.4087954e-12 -1046.9637 2.9674391 1.458e-06 110;
 
diff --git a/tutorials/compressible/rhoCentralFoam/forwardStep/constant/thermophysicalProperties b/tutorials/compressible/rhoCentralFoam/forwardStep/constant/thermophysicalProperties
index 841a143c18ed9bb76e2fa5d864cbdf9ca93fed50..41f4c6be09c194abc58193ca7b00c15564660992 100644
--- a/tutorials/compressible/rhoCentralFoam/forwardStep/constant/thermophysicalProperties
+++ b/tutorials/compressible/rhoCentralFoam/forwardStep/constant/thermophysicalProperties
@@ -15,7 +15,7 @@ FoamFile
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
-thermoType      hThermo<pureMixture<constTransport<specieThermo<hConstThermo<perfectGas>>>>>;
+thermoType      hPsiThermo<pureMixture<constTransport<specieThermo<hConstThermo<perfectGas>>>>>;
 
 mixture         normalisedGas 1 11640.3 2.5 0 0 1;
 
diff --git a/tutorials/compressible/rhoCentralFoam/obliqueShock/constant/thermophysicalProperties b/tutorials/compressible/rhoCentralFoam/obliqueShock/constant/thermophysicalProperties
index 841a143c18ed9bb76e2fa5d864cbdf9ca93fed50..41f4c6be09c194abc58193ca7b00c15564660992 100644
--- a/tutorials/compressible/rhoCentralFoam/obliqueShock/constant/thermophysicalProperties
+++ b/tutorials/compressible/rhoCentralFoam/obliqueShock/constant/thermophysicalProperties
@@ -15,7 +15,7 @@ FoamFile
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
-thermoType      hThermo<pureMixture<constTransport<specieThermo<hConstThermo<perfectGas>>>>>;
+thermoType      hPsiThermo<pureMixture<constTransport<specieThermo<hConstThermo<perfectGas>>>>>;
 
 mixture         normalisedGas 1 11640.3 2.5 0 0 1;
 
diff --git a/tutorials/compressible/rhoCentralFoam/shockTube/constant/thermophysicalProperties b/tutorials/compressible/rhoCentralFoam/shockTube/constant/thermophysicalProperties
index 919fec0ceab7d526193af6520876a6a75fe08f7a..613fd43883bcdefdfd3e4ec65f8d4a360a47b432 100644
--- a/tutorials/compressible/rhoCentralFoam/shockTube/constant/thermophysicalProperties
+++ b/tutorials/compressible/rhoCentralFoam/shockTube/constant/thermophysicalProperties
@@ -15,7 +15,7 @@ FoamFile
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
-thermoType      hThermo<pureMixture<constTransport<specieThermo<hConstThermo<perfectGas>>>>>;
+thermoType      hPsiThermo<pureMixture<constTransport<specieThermo<hConstThermo<perfectGas>>>>>;
 
 mixture         air 1 28.96 1004.5 2.544e+06 0 1;
 
diff --git a/tutorials/compressible/rhoCentralFoam/wedge15Ma5/constant/thermophysicalProperties b/tutorials/compressible/rhoCentralFoam/wedge15Ma5/constant/thermophysicalProperties
index 841a143c18ed9bb76e2fa5d864cbdf9ca93fed50..41f4c6be09c194abc58193ca7b00c15564660992 100644
--- a/tutorials/compressible/rhoCentralFoam/wedge15Ma5/constant/thermophysicalProperties
+++ b/tutorials/compressible/rhoCentralFoam/wedge15Ma5/constant/thermophysicalProperties
@@ -15,7 +15,7 @@ FoamFile
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
-thermoType      hThermo<pureMixture<constTransport<specieThermo<hConstThermo<perfectGas>>>>>;
+thermoType      hPsiThermo<pureMixture<constTransport<specieThermo<hConstThermo<perfectGas>>>>>;
 
 mixture         normalisedGas 1 11640.3 2.5 0 0 1;
 
diff --git a/tutorials/compressible/rhoPimpleFoam/angledDuct/constant/thermophysicalProperties b/tutorials/compressible/rhoPimpleFoam/angledDuct/constant/thermophysicalProperties
index bd1a6c1f0496c414f331f2d0c1357fd1918e36a8..a94ec3d442ef2ea46e7b3a863dd5512f05d8ae85 100644
--- a/tutorials/compressible/rhoPimpleFoam/angledDuct/constant/thermophysicalProperties
+++ b/tutorials/compressible/rhoPimpleFoam/angledDuct/constant/thermophysicalProperties
@@ -15,7 +15,7 @@ FoamFile
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
-thermoType      hThermo<pureMixture<sutherlandTransport<specieThermo<hConstThermo<perfectGas>>>>>;
+thermoType      hPsiThermo<pureMixture<sutherlandTransport<specieThermo<hConstThermo<perfectGas>>>>>;
 
 mixture         air 1 28.9 1007 0 1.4792e-06 116;
 
diff --git a/tutorials/compressible/rhoPisoFoam/les/pitzDaily/constant/thermophysicalProperties b/tutorials/compressible/rhoPisoFoam/les/pitzDaily/constant/thermophysicalProperties
index 7f85f2afd5e60654d526bf686b5f4f2819841dab..3c52e2545f8de88e10ecba0a455f73b2a3565e66 100644
--- a/tutorials/compressible/rhoPisoFoam/les/pitzDaily/constant/thermophysicalProperties
+++ b/tutorials/compressible/rhoPisoFoam/les/pitzDaily/constant/thermophysicalProperties
@@ -15,7 +15,7 @@ FoamFile
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
-thermoType      hThermo<pureMixture<constTransport<specieThermo<hConstThermo<perfectGas>>>>>;
+thermoType      hPsiThermo<pureMixture<constTransport<specieThermo<hConstThermo<perfectGas>>>>>;
 
 mixture         air 1 28.9 1000 0 1.8e-05 0.7;
 
diff --git a/tutorials/compressible/rhoPorousSimpleFoam/angledDuctImplicit/constant/thermophysicalProperties b/tutorials/compressible/rhoPorousSimpleFoam/angledDuctImplicit/constant/thermophysicalProperties
index ab0fa0fe3c8b725dac44909a43c7849d66428e8c..81db5fe944aba427c44fb2a6289733bb6ef6eb44 100644
--- a/tutorials/compressible/rhoPorousSimpleFoam/angledDuctImplicit/constant/thermophysicalProperties
+++ b/tutorials/compressible/rhoPorousSimpleFoam/angledDuctImplicit/constant/thermophysicalProperties
@@ -15,7 +15,7 @@ FoamFile
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
-thermoType      hThermo<pureMixture<sutherlandTransport<specieThermo<hConstThermo<perfectGas>>>>>;
+thermoType      hPsiThermo<pureMixture<sutherlandTransport<specieThermo<hConstThermo<perfectGas>>>>>;
 
 mixture         air 1 28.9 1007 0 1.4792e-06 116;
 
diff --git a/tutorials/compressible/sonicFoam/ras/nacaAirfoil/constant/thermophysicalProperties b/tutorials/compressible/sonicFoam/ras/nacaAirfoil/constant/thermophysicalProperties
index 8e15891e509cc2f3819180595b2f41133983d22c..97425177af7947579a6656cf4e079a95f47f0387 100644
--- a/tutorials/compressible/sonicFoam/ras/nacaAirfoil/constant/thermophysicalProperties
+++ b/tutorials/compressible/sonicFoam/ras/nacaAirfoil/constant/thermophysicalProperties
@@ -15,7 +15,7 @@ FoamFile
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
-thermoType      hThermo<pureMixture<constTransport<specieThermo<hConstThermo<perfectGas>>>>>;
+thermoType      hPsiThermo<pureMixture<constTransport<specieThermo<hConstThermo<perfectGas>>>>>;
 
 mixture         air 1 28.9 1000 2.544e+06 1.8e-05 0.7;
 
diff --git a/tutorials/compressible/sonicFoam/ras/prism/constant/thermophysicalProperties b/tutorials/compressible/sonicFoam/ras/prism/constant/thermophysicalProperties
index 754163e2a972e3860710533ee809e51d9c3a99d7..39b28b36815c84a120d9da22b489a21026269c29 100644
--- a/tutorials/compressible/sonicFoam/ras/prism/constant/thermophysicalProperties
+++ b/tutorials/compressible/sonicFoam/ras/prism/constant/thermophysicalProperties
@@ -15,7 +15,7 @@ FoamFile
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
-thermoType      hThermo<pureMixture<constTransport<specieThermo<hConstThermo<perfectGas>>>>>;
+thermoType      hPsiThermo<pureMixture<constTransport<specieThermo<hConstThermo<perfectGas>>>>>;
 
 mixture         air 1 28.9 1300 2.544e+06 1.84e-05 0.7;
 
diff --git a/tutorials/heatTransfer/buoyantSimpleFoam/hotRoom/constant/thermophysicalProperties b/tutorials/heatTransfer/buoyantSimpleFoam/hotRoom/constant/thermophysicalProperties
index f826516c2ebc44480f764103bbcc05c3f2e83efd..6d55fcba3d7dd3a1e149ef0dd6f1582e917b7e7d 100644
--- a/tutorials/heatTransfer/buoyantSimpleFoam/hotRoom/constant/thermophysicalProperties
+++ b/tutorials/heatTransfer/buoyantSimpleFoam/hotRoom/constant/thermophysicalProperties
@@ -15,7 +15,7 @@ FoamFile
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
-thermoType      hThermo<pureMixture<constTransport<specieThermo<hConstThermo<perfectGas>>>>>;
+thermoType      hPsiThermo<pureMixture<constTransport<specieThermo<hConstThermo<perfectGas>>>>>;
 
 mixture         air 1 28.9 1000 0 1.8e-05 0.7;
 
diff --git a/tutorials/heatTransfer/buoyantSimpleRadiationFoam/hotRadiationRoom/constant/thermophysicalProperties b/tutorials/heatTransfer/buoyantSimpleRadiationFoam/hotRadiationRoom/constant/thermophysicalProperties
index f826516c2ebc44480f764103bbcc05c3f2e83efd..6d55fcba3d7dd3a1e149ef0dd6f1582e917b7e7d 100644
--- a/tutorials/heatTransfer/buoyantSimpleRadiationFoam/hotRadiationRoom/constant/thermophysicalProperties
+++ b/tutorials/heatTransfer/buoyantSimpleRadiationFoam/hotRadiationRoom/constant/thermophysicalProperties
@@ -15,7 +15,7 @@ FoamFile
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
-thermoType      hThermo<pureMixture<constTransport<specieThermo<hConstThermo<perfectGas>>>>>;
+thermoType      hPsiThermo<pureMixture<constTransport<specieThermo<hConstThermo<perfectGas>>>>>;
 
 mixture         air 1 28.9 1000 0 1.8e-05 0.7;
 
diff --git a/tutorials/heatTransfer/buoyantSimpleRadiationFoam/hotRadiationRoomFvDOM/constant/thermophysicalProperties b/tutorials/heatTransfer/buoyantSimpleRadiationFoam/hotRadiationRoomFvDOM/constant/thermophysicalProperties
index f826516c2ebc44480f764103bbcc05c3f2e83efd..6d55fcba3d7dd3a1e149ef0dd6f1582e917b7e7d 100644
--- a/tutorials/heatTransfer/buoyantSimpleRadiationFoam/hotRadiationRoomFvDOM/constant/thermophysicalProperties
+++ b/tutorials/heatTransfer/buoyantSimpleRadiationFoam/hotRadiationRoomFvDOM/constant/thermophysicalProperties
@@ -15,7 +15,7 @@ FoamFile
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
-thermoType      hThermo<pureMixture<constTransport<specieThermo<hConstThermo<perfectGas>>>>>;
+thermoType      hPsiThermo<pureMixture<constTransport<specieThermo<hConstThermo<perfectGas>>>>>;
 
 mixture         air 1 28.9 1000 0 1.8e-05 0.7;
 
diff --git a/tutorials/heatTransfer/chtMultiRegionFoam/multiRegionHeater/constant/bottomAir/thermophysicalProperties b/tutorials/heatTransfer/chtMultiRegionFoam/multiRegionHeater/constant/bottomAir/thermophysicalProperties
index 7eb3ee5b9f430e1429510ce0cf7063914b1f4f41..02fdc143ae4770b373a64bc74f3704da6d5ab69e 100644
--- a/tutorials/heatTransfer/chtMultiRegionFoam/multiRegionHeater/constant/bottomAir/thermophysicalProperties
+++ b/tutorials/heatTransfer/chtMultiRegionFoam/multiRegionHeater/constant/bottomAir/thermophysicalProperties
@@ -14,7 +14,7 @@ FoamFile
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
-thermoType      hThermo<pureMixture<constTransport<specieThermo<hConstThermo<perfectGas>>>>>;
+thermoType      hPsiThermo<pureMixture<constTransport<specieThermo<hConstThermo<perfectGas>>>>>;
 
 mixture         air 1 28.9 1000 0 1.8e-05 0.7;
 
diff --git a/tutorials/heatTransfer/chtMultiRegionFoam/multiRegionHeater/constant/topAir/thermophysicalProperties b/tutorials/heatTransfer/chtMultiRegionFoam/multiRegionHeater/constant/topAir/thermophysicalProperties
deleted file mode 120000
index bd35030a13bd2a596bd156fcb37634090c0342a4..0000000000000000000000000000000000000000
--- a/tutorials/heatTransfer/chtMultiRegionFoam/multiRegionHeater/constant/topAir/thermophysicalProperties
+++ /dev/null
@@ -1 +0,0 @@
-../bottomAir/thermophysicalProperties
\ No newline at end of file
diff --git a/tutorials/heatTransfer/chtMultiRegionFoam/multiRegionHeater/constant/topAir/thermophysicalProperties b/tutorials/heatTransfer/chtMultiRegionFoam/multiRegionHeater/constant/topAir/thermophysicalProperties
new file mode 100644
index 0000000000000000000000000000000000000000..02fdc143ae4770b373a64bc74f3704da6d5ab69e
--- /dev/null
+++ b/tutorials/heatTransfer/chtMultiRegionFoam/multiRegionHeater/constant/topAir/thermophysicalProperties
@@ -0,0 +1,21 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  1.5                                   |
+|   \\  /    A nd           | Web:      http://www.OpenFOAM.org               |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      ascii;
+    class       dictionary;
+    object      thermophysicalProperties;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+thermoType      hPsiThermo<pureMixture<constTransport<specieThermo<hConstThermo<perfectGas>>>>>;
+
+mixture         air 1 28.9 1000 0 1.8e-05 0.7;
+
+// ************************************************************************* //
diff --git a/tutorials/lagrangian/rhoPisoTwinParcelFoam/simplifiedSiwek/constant/thermophysicalProperties b/tutorials/lagrangian/rhoPisoTwinParcelFoam/simplifiedSiwek/constant/thermophysicalProperties
index d02b85fec4397d8da50129dd6d2374b56619abe6..f7638810ff7a4d465637cea0b9f7caca2680d98f 100644
--- a/tutorials/lagrangian/rhoPisoTwinParcelFoam/simplifiedSiwek/constant/thermophysicalProperties
+++ b/tutorials/lagrangian/rhoPisoTwinParcelFoam/simplifiedSiwek/constant/thermophysicalProperties
@@ -15,7 +15,7 @@ FoamFile
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
-thermoType      hThermo<pureMixture<constTransport<specieThermo<hConstThermo<perfectGas>>>>>;
+thermoType      hPsiThermo<pureMixture<constTransport<specieThermo<hConstThermo<perfectGas>>>>>;
 
 mixture         air 1 28.9 1007 0 1.84e-05 0.7;