diff --git a/klippy/extras/heaters.py b/klippy/extras/heaters.py
index 14543542..5cbc27e4 100644
--- a/klippy/extras/heaters.py
+++ b/klippy/extras/heaters.py
@@ -1,6 +1,6 @@
 # Tracking of PWM controlled heaters and their temperature control
 #
-# Copyright (C) 2016-2020  Kevin O'Connor <kevin@koconnor.net>
+# Copyright (C) 2016-2025  Kevin O'Connor <kevin@koconnor.net>
 #
 # This file may be distributed under the terms of the GNU GPLv3 license.
 import os, logging, threading
@@ -11,7 +11,7 @@ import os, logging, threading
 ######################################################################
 
 KELVIN_TO_CELSIUS = -273.15
-MAX_HEAT_TIME = 5.0
+MAX_HEAT_TIME = 3.0
 AMBIENT_TEMP = 25.
 PID_PARAM_BASE = 255.
 MAX_MAINTHREAD_TIME = 5.0