diff --git a/config.py b/config.py
index 8d2a424..dc257b3 100644
--- a/config.py
+++ b/config.py
@@ -116,7 +116,7 @@ stop_integral_windup = True
 #
 #   Simulation parameters
 simulate = True
-sim_t_env      = 60.0   # deg C
+sim_t_env      = 255   # deg C
 sim_c_heat     = 500.0  # J/K  heat capacity of heat element
 sim_c_oven     = 5000.0 # J/K  heat capacity of oven
 sim_p_heat     = 5450.0 # W    heating power of oven
diff --git a/lib/oven.py b/lib/oven.py
index 9eafd06..f5efc42 100644
--- a/lib/oven.py
+++ b/lib/oven.py
@@ -103,7 +103,7 @@ class TempSensorSimulated(TempSensor):
     '''Simulates a temperature sensor '''
     def __init__(self):
         TempSensor.__init__(self)
-        self.simulated_temperature = 255
+        self.simulated_temperature = config.sim_t_env
     def temperature(self):
         return self.simulated_temperature
 
@@ -526,7 +526,7 @@ class SimulatedOven(Oven):
         self.R_ho = self.R_ho_noair
 
         # set temps to the temp of the surrounding environment
-        self.t = 255  # self.t_env # deg C temp of oven
+        self.t = config.sim_t_env  # deg C or F temp of oven
         self.t_h = self.t_env #deg C temp of heating element
 
         super().__init__()