diff --git a/sql/add_heattreat_application.sql b/sql/add_heattreat_application.sql
new file mode 100644
index 0000000..32c8b43
--- /dev/null
+++ b/sql/add_heattreat_application.sql
@@ -0,0 +1,14 @@
+-- Add HeatTreat application for PC type detection
+-- Run on production database
+-- Date: 2025-12-09
+
+-- Check if HeatTreat already exists before inserting
+INSERT INTO applications (appname, appdescription, supportteamid, isactive)
+SELECT 'HeatTreat', 'Heat Treat monitoring and control software', 1, 1
+FROM dual
+WHERE NOT EXISTS (SELECT 1 FROM applications WHERE appname = 'HeatTreat');
+
+-- Verify the insert
+SELECT appid, appname, appdescription, isactive
+FROM applications
+WHERE appname = 'HeatTreat';