diff --git a/src/devices/boiler.cpp b/src/devices/boiler.cpp
index 0658bdd0c..557d12bdc 100644
--- a/src/devices/boiler.cpp
+++ b/src/devices/boiler.cpp
@@ -220,7 +220,7 @@ Boiler::Boiler(uint8_t device_type, int8_t device_id, uint8_t product_id, const
                           FL_(emergencyTemp),
                           DeviceValueUOM::DEGREES,
                           MAKE_CF_CB(set_emergency_temp),
-                          40,
+                          15,
                           70);
 
     /*