diff --git a/PHI-CL/changelog.txt b/PHI-CL/changelog.txt
index c7dc5f1..8904762 100644
--- a/PHI-CL/changelog.txt
+++ b/PHI-CL/changelog.txt
@@ -4,6 +4,7 @@ Date: 2025-05-24
 
   Changes:
     - [SA] Further changes for the space age generic settings.
+    - [SA] Support for heat pipe heat radius is dropped.
 
 ---------------------------------------------------------------------------------------------------
 Version: 3.0.105
diff --git a/PHI-CL/data.lua b/PHI-CL/data.lua
index 87759e1..601e566 100644
--- a/PHI-CL/data.lua
+++ b/PHI-CL/data.lua
@@ -516,14 +516,6 @@ if (settings.startup['PHI-SA'].value and (not settings.startup['PHI-SA-SPOIL'].v
     end
 end
 
-if settings.startup['PHI-SA'].value and settings.startup['PHI-SA-HEAT-RADIUS'].value and mods['space-age'] then
-    for _, v in pairs({data.raw['heat-pipe'], data.raw['reactor']}) do
-        for _, v2 in pairs(v) do
-            v2.heating_radius = settings.startup['PHI-SA-HEAT-RADIUS'].value
-        end
-    end
-end
-
 if mods['space-age'] and ((settings.startup['PHI-SA'].value and settings.startup['PHI-SA-GENERIC'].value) or settings.startup['PHI-VP'].value) then
     data.raw['character']['character']['mining_categories'] = {'basic-solid', 'hard-solid'}
 
diff --git a/PHI-CL/settings.lua b/PHI-CL/settings.lua
index 4b7a0e3..1507bd6 100644
--- a/PHI-CL/settings.lua
+++ b/PHI-CL/settings.lua
@@ -171,28 +171,20 @@ data:extend({
   default_value = false,
   localised_name = {'phi-cl.combine', {'mod-setting-name-prefix.PHI-SA'}, {'mod-setting-name.PHI-SA'}},
   order = 'C00'
-}, {
-  type = 'int-setting',
-  name = 'PHI-SA-HEAT-RADIUS',
-  setting_type = 'startup',
-  default_value = 1,
-  allowed_values = {1, 2, 3, 4, 5, 6, 7},
-  localised_name = {'phi-cl.combine', {'mod-setting-name-prefix.PHI-SA-HEAT-RADIUS'}, {'mod-setting-name.PHI-SA-HEAT-RADIUS'}},
-  order = 'C01'
 }, {
   type = 'bool-setting',
   name = 'PHI-SA-SPOIL',
   setting_type = 'startup',
   default_value = false,
   localised_name = {'phi-cl.combine', {'mod-setting-name-prefix.PHI-SA-SPOIL'}, {'mod-setting-name.PHI-SA-SPOIL'}},
-  order = 'C02'
+  order = 'C01'
 }, {
   type = 'bool-setting',
   name = 'PHI-SA-SPOIL-FREEZE',
   setting_type = 'startup',
   default_value = false,
   localised_name = {'phi-cl.combine', {'mod-setting-name-prefix.PHI-SA-SPOIL-FREEZE'}, {'mod-setting-name.PHI-SA-SPOIL-FREEZE'}},
-  order = 'C03'
+  order = 'C02'
 }, {
   type = 'int-setting',
   name = 'PHI-SA-SPOIL-FREEZE-RATIO',
@@ -201,14 +193,14 @@ data:extend({
   minimum_value = 1,
   maximum_value = 1000,
   localised_name = {'phi-cl.combine', {'mod-setting-name-prefix.PHI-SA-SPOIL-FREEZE-RATIO'}, {'mod-setting-name.PHI-SA-SPOIL-FREEZE-RATIO'}},
-  order = 'C04'
+  order = 'C03'
 }, {
   type = 'bool-setting',
   name = 'PHI-SA-ENABLE-QUALITY',
   setting_type = 'startup',
   default_value = false,
   localised_name = {'phi-cl.combine', {'mod-setting-name-prefix.PHI-SA-ENABLE-QUALITY'}, {'mod-setting-name.PHI-SA-ENABLE-QUALITY'}},
-  order = 'C05'
+  order = 'C04'
 }, {
   type = 'int-setting',
   name = 'PHI-SA-QUALITY',
@@ -217,14 +209,14 @@ data:extend({
   minimum_value = 1,
   maximum_value = 100,
   localised_name = {'phi-cl.combine', {'mod-setting-name-prefix.PHI-SA-QUALITY'}, {'mod-setting-name.PHI-SA-QUALITY'}},
-  order = 'C06'
+  order = 'C05'
 }, {
   type = 'bool-setting',
   name = 'PHI-SA-GENERIC',
   setting_type = 'startup',
   default_value = true,
   localised_name = {'phi-cl.combine', {'mod-setting-name-prefix.PHI-SA-GENERIC'}, {'mod-setting-name.PHI-SA-GENERIC'}},
-  order = 'C07'
+  order = 'C06'
 }, {
   type = 'bool-setting',
   name = 'PHI-VP',