diff --git a/fans.cfg b/fans.cfg
index 45290e6..044555a 100644
--- a/fans.cfg
+++ b/fans.cfg
@@ -33,6 +33,20 @@ heater: heater_bed
 heater_temp: 40.0
 fan_speed: 0.80
 
+[heater_fan side1]
+pin: PD14
+kick_start_time: 0.5
+heater: heater_bed
+heater_temp: 40.0
+fan_speed: 0.40
+
+[heater_fan side2]
+pin: PD15
+kick_start_time: 0.5
+heater: heater_bed
+heater_temp: 40.0
+fan_speed: 0.40
+
 # ## exhaust automatic
 # [heater_fan exhaust_fan]
 # pin: PD14
@@ -43,13 +57,10 @@ fan_speed: 0.80
 # heater_temp: 40
 # fan_speed: 0.6
 
-## exhaust manual
-[fan_generic exhaust_fan]
-pin: PD14
-max_power: 1.0
-shutdown_speed: 0.0
-kick_start_time: 0.5
+# ## exhaust manual
+# [fan_generic exhaust_fan]
+# pin: PD14
+# max_power: 1.0
+# shutdown_speed: 0.0
+# kick_start_time: 0.5
 
-## always-on
-# [heater_fan side1]
-# [heater_fan side2]