diff --git a/.github/workflows/build-and-test.yml b/.github/workflows/build-and-test.yml
index ceb27bb4..782579ed 100644
--- a/.github/workflows/build-and-test.yml
+++ b/.github/workflows/build-and-test.yml
@@ -61,7 +61,7 @@ jobs:
     continue-on-error: ${{ matrix.experimental }}
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           fetch-depth: 0
       - name: Set Project Name
diff --git a/Testing/Temporary/CTestCostData.txt b/Testing/Temporary/CTestCostData.txt
deleted file mode 100644
index ed97d539..00000000
--- a/Testing/Temporary/CTestCostData.txt
+++ /dev/null
@@ -1 +0,0 @@
----
diff --git a/Testing/Temporary/LastTest.log b/Testing/Temporary/LastTest.log
deleted file mode 100644
index 223992e1..00000000
--- a/Testing/Temporary/LastTest.log
+++ /dev/null
@@ -1,3 +0,0 @@
-Start testing: Aug 20 10:13 Pacific Daylight Time
-----------------------------------------------------------
-End testing: Aug 20 10:13 Pacific Daylight Time
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index a988f7ff..813e0481 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -39,7 +39,7 @@ else ()
     add_library(libHPWHsim SHARED ${library_sources})
 endif ()
 
-target_include_directories(libHPWHsim PUBLIC ${PROJECT_BINARY_DIR}/src ${PROJECT_SOURCE_DIR}/src)
+target_include_directories(libHPWHsim PUBLIC ${PROJECT_SOURCE_DIR}/src ${PROJECT_BINARY_DIR}/src)
 
 target_link_libraries(libHPWHsim PRIVATE ${PROJECT_NAME}_common_interface PUBLIC btwxt)
 target_compile_features(libHPWHsim PRIVATE cxx_std_17)
diff --git a/src/HPWHpresets.cc b/src/HPWHpresets.cc
index 167977f0..d1362a88 100644
--- a/src/HPWHpresets.cc
+++ b/src/HPWHpresets.cc
@@ -2200,17 +2200,20 @@ int HPWH::HPWHinit_presets(MODELS presetNum)
 
         // Set up regular grid interpolator.
         Btwxt::GridAxis g0(compressor.perfGrid[0],
-                           "TAir",
                            Btwxt::InterpolationMethod::linear,
-                           Btwxt::ExtrapolationMethod::constant);
+                           Btwxt::ExtrapolationMethod::constant,
+                           {-DBL_MAX, DBL_MAX},
+                           "TAir");
         Btwxt::GridAxis g1(compressor.perfGrid[1],
-                           "TOut",
                            Btwxt::InterpolationMethod::linear,
-                           Btwxt::ExtrapolationMethod::constant);
+                           Btwxt::ExtrapolationMethod::constant,
+                           {-DBL_MAX, DBL_MAX},
+                           "TOut");
         Btwxt::GridAxis g2(compressor.perfGrid[2],
-                           "TIn",
                            Btwxt::InterpolationMethod::linear,
-                           Btwxt::ExtrapolationMethod::linear);
+                           Btwxt::ExtrapolationMethod::linear,
+                           {-DBL_MAX, DBL_MAX},
+                           "Tin");
 
         std::vector<Btwxt::GridAxis> gx {g0, g1, g2};
 
diff --git a/vendor/btwxt b/vendor/btwxt
index 2a5926e9..1a8c0df1 160000
--- a/vendor/btwxt
+++ b/vendor/btwxt
@@ -1 +1 @@
-Subproject commit 2a5926e96b594bafbcaa7640a9cabd40b5ae043d
+Subproject commit 1a8c0df1db24a3e4d206ef4ac8568f8c5781c782