diff --git a/src/phaseSystemModels/multiphaseInter/phasesSystem/MassTransferPhaseSystem/MassTransferPhaseSystem.C b/src/phaseSystemModels/multiphaseInter/phasesSystem/MassTransferPhaseSystem/MassTransferPhaseSystem.C
index 5de5b50e70bae998f98d724bb9a5ceeaf62e8867..559fee3e63915cb5a225bf687a6b77a475a96843 100644
--- a/src/phaseSystemModels/multiphaseInter/phasesSystem/MassTransferPhaseSystem/MassTransferPhaseSystem.C
+++ b/src/phaseSystemModels/multiphaseInter/phasesSystem/MassTransferPhaseSystem/MassTransferPhaseSystem.C
@@ -121,7 +121,7 @@ Foam::MassTransferPhaseSystem<BasePhaseSystem>::calculateL
 
         const word species(speciesName.substr(0, speciesName.find('.')));
 
-        L += pos(dmdtNetki)*interfacePtr->L(species, T);
+        L -= pos(dmdtNetki)*interfacePtr->L(species, T);
     }
 
     return tL;
@@ -240,7 +240,7 @@ Foam::MassTransferPhaseSystem<BasePhaseSystem>::heatTransfer
 
                     if (KSp.valid())
                     {
-                        Sp -= KSp.ref();
+                        Sp += KSp.ref();
                     }
 
                     tmp<volScalarField> KSu =
@@ -248,13 +248,13 @@ Foam::MassTransferPhaseSystem<BasePhaseSystem>::heatTransfer
 
                     if (KSu.valid())
                     {
-                        Su -= KSu.ref();
+                        Su += KSu.ref();
                     }
 
                     // If linearization is not provided used full explicit
                     if (!KSp.valid() && !KSu.valid())
                     {
-                        Su -= *dmdt_[keyik];
+                        Su += *dmdt_[keyik];
                     }
                 }
 
diff --git a/src/phaseSystemModels/multiphaseInter/phasesSystem/massTransferModels/Lee/Lee.C b/src/phaseSystemModels/multiphaseInter/phasesSystem/massTransferModels/Lee/Lee.C
index b8313ea33e3eb9a0f16778257d9d45fe95e4725a..d0cde4679e2a3b2276052e3d248ebc12a5a1b79d 100644
--- a/src/phaseSystemModels/multiphaseInter/phasesSystem/massTransferModels/Lee/Lee.C
+++ b/src/phaseSystemModels/multiphaseInter/phasesSystem/massTransferModels/Lee/Lee.C
@@ -78,7 +78,7 @@ Foam::meltingEvaporationModels::Lee<Thermo, OtherThermo>::Kexp
         {
             return
             (
-               coeff*pos(Tactivate_ - refValue)
+                coeff*pos(Tactivate_ - refValue)
             );
         }
     }
diff --git a/src/phaseSystemModels/multiphaseInter/phasesSystem/massTransferModels/interfaceHeatResistance/interfaceHeatResistance.C b/src/phaseSystemModels/multiphaseInter/phasesSystem/massTransferModels/interfaceHeatResistance/interfaceHeatResistance.C
index ca76c43a51e0ed96e173105a34d29f48f1ab6d30..0dfd7e8b117b3af5044a07a8b66ace78ca4e79c5 100644
--- a/src/phaseSystemModels/multiphaseInter/phasesSystem/massTransferModels/interfaceHeatResistance/interfaceHeatResistance.C
+++ b/src/phaseSystemModels/multiphaseInter/phasesSystem/massTransferModels/interfaceHeatResistance/interfaceHeatResistance.C
@@ -6,7 +6,7 @@
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
     Copyright (C) 2020 Henning Scheufler
-    Copyright (C) 2020-2021 OpenCFD Ltd.
+    Copyright (C) 2020-2022 OpenCFD Ltd.
 -------------------------------------------------------------------------------
 License
     This file is part of OpenFOAM.
@@ -223,7 +223,7 @@ Foam::meltingEvaporationModels::interfaceHeatResistance<Thermo, OtherThermo>
     auto tempOpen = fullSpeciesName.find('.');
     const word speciesName(fullSpeciesName.substr(0, tempOpen));
 
-    tmp<volScalarField> L = this->L(speciesName, T);
+    tmp<volScalarField> L = mag(this->L(speciesName, T));
 
     htc_ = R_/L();
 
diff --git a/src/phaseSystemModels/multiphaseInter/phasesSystem/massTransferModels/kineticGasEvaporation/kineticGasEvaporation.C b/src/phaseSystemModels/multiphaseInter/phasesSystem/massTransferModels/kineticGasEvaporation/kineticGasEvaporation.C
index 7b89464004e46d45aea0ff3d08e634820d9a683f..a0a45133992337acff8f38736be8d4ce94b059d0 100644
--- a/src/phaseSystemModels/multiphaseInter/phasesSystem/massTransferModels/kineticGasEvaporation/kineticGasEvaporation.C
+++ b/src/phaseSystemModels/multiphaseInter/phasesSystem/massTransferModels/kineticGasEvaporation/kineticGasEvaporation.C
@@ -5,7 +5,7 @@
     \\  /    A nd           | www.openfoam.com
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
-    Copyright (C) 2017-2021 OpenCFD Ltd.
+    Copyright (C) 2017-2022 OpenCFD Ltd.
 -------------------------------------------------------------------------------
 License
     This file is part of OpenFOAM.
@@ -206,7 +206,7 @@ Foam::meltingEvaporationModels::kineticGasEvaporation<Thermo, OtherThermo>
     );
 
     word speciesName = IOobject::member(this->transferSpecie());
-    tmp<volScalarField> L = this->L(speciesName, T);
+    tmp<volScalarField> L = mag(this->L(speciesName, T));
 
     updateInterface(T);
 
diff --git a/tutorials/multiphase/icoReactingMultiphaseInterFoam/evaporationMultiComponent/constant/thermophysicalProperties.liquid b/tutorials/multiphase/icoReactingMultiphaseInterFoam/evaporationMultiComponent/constant/thermophysicalProperties.liquid
index 8f35a391441839d5ca32df492593cf558a686076..a12acc2ec7857d9525e5e47b2295590438fe2ac5 100644
--- a/tutorials/multiphase/icoReactingMultiphaseInterFoam/evaporationMultiComponent/constant/thermophysicalProperties.liquid
+++ b/tutorials/multiphase/icoReactingMultiphaseInterFoam/evaporationMultiComponent/constant/thermophysicalProperties.liquid
@@ -39,7 +39,7 @@ mixture
     thermodynamics
     {
         Cp              4181;
-        Hf              2.45e6;//-1.5833e7;//deltaHv 2.45e6; //[J/Kg]
+        Hf              -2.45e6; //[J/Kg]
     }
     transport
     {
diff --git a/tutorials/multiphase/icoReactingMultiphaseInterFoam/mixerVesselAMI2D/constant/thermophysicalProperties.liquid b/tutorials/multiphase/icoReactingMultiphaseInterFoam/mixerVesselAMI2D/constant/thermophysicalProperties.liquid
index 7c58fc3403ba1d0a3cdd6e29a19516d8cf5ef77e..104d664c5c1d270da3fb60890a184afc4c893cf7 100644
--- a/tutorials/multiphase/icoReactingMultiphaseInterFoam/mixerVesselAMI2D/constant/thermophysicalProperties.liquid
+++ b/tutorials/multiphase/icoReactingMultiphaseInterFoam/mixerVesselAMI2D/constant/thermophysicalProperties.liquid
@@ -40,7 +40,7 @@ mixture
     thermodynamics
     {
         Cp              4181;
-        Hf              2.45e6; //[J/Kg]
+        Hf              -2.45e6; //[J/Kg]
     }
     transport
     {
diff --git a/tutorials/multiphase/icoReactingMultiphaseInterFoam/poolEvaporation/constant/thermophysicalProperties.liquid b/tutorials/multiphase/icoReactingMultiphaseInterFoam/poolEvaporation/constant/thermophysicalProperties.liquid
index f1d85ecdca54d1900a9f51da2a08f07a2e2e3cec..ea44fd872f33aaafae29871315effdad50461cdb 100644
--- a/tutorials/multiphase/icoReactingMultiphaseInterFoam/poolEvaporation/constant/thermophysicalProperties.liquid
+++ b/tutorials/multiphase/icoReactingMultiphaseInterFoam/poolEvaporation/constant/thermophysicalProperties.liquid
@@ -39,7 +39,7 @@ mixture
     thermodynamics
     {
         Cp              4216;
-        Hf              2.45e6;
+        Hf              -2.45e6;
     }
     transport
     {
diff --git a/tutorials/multiphase/icoReactingMultiphaseInterFoam/solidMelting2D/constant/thermophysicalProperties.liquid b/tutorials/multiphase/icoReactingMultiphaseInterFoam/solidMelting2D/constant/thermophysicalProperties.liquid
index 6f12cd4b91b4bd071ad130244ecc635d7d810936..2de7a9a9bab3640974018077fe24965b788b5940 100644
--- a/tutorials/multiphase/icoReactingMultiphaseInterFoam/solidMelting2D/constant/thermophysicalProperties.liquid
+++ b/tutorials/multiphase/icoReactingMultiphaseInterFoam/solidMelting2D/constant/thermophysicalProperties.liquid
@@ -41,7 +41,7 @@ mixture
     thermodynamics
     {
         Cp              381;
-        Hf              0;
+        Hf              8.016e4;
     }
     transport
     {
diff --git a/tutorials/multiphase/icoReactingMultiphaseInterFoam/solidMelting2D/constant/thermophysicalProperties.solid b/tutorials/multiphase/icoReactingMultiphaseInterFoam/solidMelting2D/constant/thermophysicalProperties.solid
index 590032365eb7a0220b10924404b79134004f3627..2c6e5a5e93bfe1ad0e943fe0e7c463e3a10e5fd0 100644
--- a/tutorials/multiphase/icoReactingMultiphaseInterFoam/solidMelting2D/constant/thermophysicalProperties.solid
+++ b/tutorials/multiphase/icoReactingMultiphaseInterFoam/solidMelting2D/constant/thermophysicalProperties.solid
@@ -39,7 +39,7 @@ mixture
     thermodynamics
     {
         Cp              381;
-        Hf              8.016e4;//[J/Kg];
+        Hf              0; //[J/Kg];
     }
     transport
     {
@@ -48,4 +48,4 @@ mixture
 }
 
 
-// ************************************************************************* //
\ No newline at end of file
+// ************************************************************************* //