diff --git a/tutorials/heatTransfer/buoyantPisoFoam/hotRoom/setHotRoom/Make/files b/tutorials/heatTransfer/buoyantPisoFoam/hotRoom/setHotRoom/Make/files
new file mode 100644
index 000000000..afc08f453
--- /dev/null
+++ b/tutorials/heatTransfer/buoyantPisoFoam/hotRoom/setHotRoom/Make/files
@@ -0,0 +1,3 @@
+setHotRoom.C
+
+EXE = $(FOAM_USER_APPBIN)/setHotRoom
diff --git a/tutorials/heatTransfer/buoyantPisoFoam/hotRoom/setHotRoom/Make/options b/tutorials/heatTransfer/buoyantPisoFoam/hotRoom/setHotRoom/Make/options
new file mode 100644
index 000000000..fa15f1245
--- /dev/null
+++ b/tutorials/heatTransfer/buoyantPisoFoam/hotRoom/setHotRoom/Make/options
@@ -0,0 +1,5 @@
+EXE_INC = \
+    -I$(LIB_SRC)/finiteVolume/lnInclude
+
+EXE_LIBS = \
+    -lfiniteVolume
diff --git a/tutorials/heatTransfer/buoyantPisoFoam/hotRoom/setHotRoom/createFields.H b/tutorials/heatTransfer/buoyantPisoFoam/hotRoom/setHotRoom/createFields.H
new file mode 100644
index 000000000..cde21f4cd
--- /dev/null
+++ b/tutorials/heatTransfer/buoyantPisoFoam/hotRoom/setHotRoom/createFields.H
@@ -0,0 +1,13 @@
+    Info<< "Reading field T\n" << endl;
+    volScalarField T
+    (
+        IOobject
+        (
+            "T",
+            runTime.timeName(),
+            mesh,
+            IOobject::MUST_READ,
+            IOobject::AUTO_WRITE
+        ),
+        mesh
+    );
diff --git a/tutorials/heatTransfer/buoyantPisoFoam/hotRoom/setHotRoom/setHotRoom.C b/tutorials/heatTransfer/buoyantPisoFoam/hotRoom/setHotRoom/setHotRoom.C
new file mode 100644
index 000000000..55084f466
--- /dev/null
+++ b/tutorials/heatTransfer/buoyantPisoFoam/hotRoom/setHotRoom/setHotRoom.C
@@ -0,0 +1,95 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | Copyright held by original author
+     \\/     M anipulation  |
+-------------------------------------------------------------------------------
+License
+    This file is part of OpenFOAM.
+
+    OpenFOAM is free software; you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the
+    Free Software Foundation; either version 2 of the License, or (at your
+    option) any later version.
+
+    OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+    for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with OpenFOAM; if not, write to the Free Software Foundation,
+    Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+
+Application
+    setHotRoom
+
+Description
+    Set the initial field of T for the hot room problem.
+
+\*---------------------------------------------------------------------------*/
+
+#include "fvCFD.H"
+#include "OSspecific.H"
+#include "fixedValueFvPatchFields.H"
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+int main(int argc, char *argv[])
+{
+
+#   include "setRootCase.H"
+
+#   include "createTime.H"
+#   include "createMesh.H"
+#   include "createFields.H"
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+volScalarField::GeometricBoundaryField& Tpatches = T.boundaryField();
+
+forAll(Tpatches, patchI)
+{
+    if
+    (
+        (typeid(Tpatches[patchI]) == typeid(fixedValueFvPatchScalarField))
+        &&
+        (mesh.boundaryMesh()[patchI].name() == "floor") 
+    )
+    {
+        fixedValueFvPatchScalarField& Tpatch =
+            refCast<fixedValueFvPatchScalarField>(Tpatches[patchI]);
+        
+        const vectorField& faceCentres = 
+            mesh.Cf().boundaryField()[patchI];
+
+        forAll(faceCentres, facei)
+        {
+            if 
+            (
+                (faceCentres[facei].x() > 4.5) && 
+                (faceCentres[facei].x() < 5.5) && 
+                (faceCentres[facei].z() > 4.5) && 
+                (faceCentres[facei].z() < 5.5) 
+            )
+            {
+                Tpatch[facei] = 600;
+            }
+            else
+            {
+                Tpatch[facei] = 300;
+            }
+        }
+    };
+
+    Info<< "Writing modified field T\n" << endl;
+    T.write();
+
+    Info<< "End\n" << endl;
+
+    return 0;
+}
+
+}
+// ************************************************************************* //