diff --git a/modules/base_plugins/fermenter_hysteresis/__init__.py b/modules/base_plugins/fermenter_hysteresis/__init__.py
index 40943e5..93b4611 100644
--- a/modules/base_plugins/fermenter_hysteresis/__init__.py
+++ b/modules/base_plugins/fermenter_hysteresis/__init__.py
@@ -23,16 +23,16 @@ class Hysteresis(FermenterController):
             target_temp = self.get_target_temp()
             temp = self.get_temp()
 
-            if temp + int(self.heater_offset_min) < target_temp:
+            if temp + float(self.heater_offset_min) < target_temp:
                 self.heater_on(100)
 
-            if temp + int(self.heater_offset_max) > target_temp:
+            if temp + float(self.heater_offset_max) > target_temp:
                 self.heater_off()
 
-            if temp > target_temp + int(self.cooler_offset_min):
+            if temp > target_temp + float(self.cooler_offset_min):
                 self.cooler_on(100)
 
-            if temp < target_temp + int(self.cooler_offset_max):
+            if temp < target_temp + float(self.cooler_offset_max):
                 self.cooler_off()
 
-            self.sleep(1)
\ No newline at end of file
+            self.sleep(1)